Mechanically Jointed Rodless Cylinders

Transcription

1 Mechanically Jointed Rodless Cylinders MY Series Basic short type (Rubber bumper) MY Series Bore sizes ø, ø, ø0 added MYB MY Basic standard type (ir cushion) MYB MYB Series MYM MYC MY MY T Bore sizes ø, ø, ø0 added MY W MYC Slide bearing guide type (ir cushion) MY /T MYM Series MY MYB MYM Series Variations Series Type MY Basic short type MYB MYM Piping type are new additions Bore size (mm) 0 Rubber bumper ir cushion Stroke adjustment unit Shock absorber Side support Floating bracket Made to Order Page ong stroke -XB Centralized piping Basic standard Standard type piping Slide bearing guide type Shock bsorber Soft Type Note) -XB P. elical Insert Threads -X8 older Mounting Bracket Note) -X, -X7 Copper Free P.7 - Note) Except the MY D- Shock bsorber Soft Type RJ Series Installed Cylinder (-XB spec.) added -X Soft stopping enabled at stroke end. Two types of shock absorbers are selectable according to operating environment.

2 igh functionality with reduced height and length Mechanically Jointed Rodless Cylinders MY Series MY Basic short type (Rubber bumper) MYB Basic standard type (ir cushion) Work pieces can be loaded directly on the work table due to the integrated guide. Overall length (Z) reduced by mm at the maximum MY (with rubber bumper) MYM Slide bearing guide type (ir cushion) eight () reduced by % at the maximum eight () oading Capacity oad mass (kg) m 70 0 MYM Bore size (mm) eight () llowable moment (Nm) M MY/B Bore size (mm) MYB/MYM (with air cushion) MYB/MYM (with air cushion) Overall ength (Z) Series MY MYB MYM MYB MYM ø 0 Overall length (Z + Stroke) ø 8 8 ø ø 9 ø 7 7 ø0 7 0 (mm) ø MYB MY/B MYM MYM eight () (mm) Series ø ø ø ø ø ø0 ø MY MYB MYB MYM 9 MYM 8 0 Weight reduced by % at the maximum Weight Series MY MYB MYB MYM MYM ø t 00 mm stroke ø ø ø..7.0 ø ø (kg) ø

3 Floating Bracket Easy connection with external guide. Vertical and lateral mounting is possible. (Page ) Stroke djustment Unit (MY/B) (MYB/M) MYB MY MYB MYM MYC Centralized Piping Integrated piping in the head cover is possible. (Page,, 8) uto Switch Can be mounted on both sides from the front direction. Side Support The cylinder tube can be fixed from the upper or lower side. (Page, 0) MY MY T MY W MYC MY /T MY MYB MYM The uniquely designed piston shape enables reduction of the height and length as well as practical arrangement of the common piping passages, cushion mechanism and positioning mechanism. This has achieved drastic miniaturization and weight reduction. Positioning cushion mechanism uto switch Side support ir cushion (MYB/M) Passage for centralized piping D- -X

4 MY Series Model Selection The following are steps for selecting the MY series which is best suited to your application. Guideline for Tentative Model Selection Guideline for tentative model selection Series Type Note Stroke accuracy Use of external guide Direct loaded Table accuracy MY Basic short type Generally combined with a separate guide making it, by length, more compact. MYB Basic standard type Generally combined with a separate guide, when stroke accuracy is required. MYM Slide bearing guide type Mounting a work piece directly on the product, when stroke accuracy is required. Most suitable Suitable Usable Not recommended Note ) The table accuracy means the amount of table deflection when a moment is applied. Note ) Travelling parallelism is not guaranteed for this cylinder. Please consult with SMC if the travelling parallelism or stroke intermediate position needs to be precise. Selection Flow Chart When an external guide is used, the selection confirmation of the guide capacity should follow the selection procedure of the external guide. The MY series allow direct load application within the allowable range for the built-in guide. The payload in this case will vary depending on the driving speed and the mounting orientation of the cylinder. Please refer to the flow below and confirm the selection. (For more detailed description of the selection flow, please refer to the operation manual.) Operating conditions m : oad mass (kg) Mounting V : Speed (mm/s) direction: P : Operating pressure (MPa) Re-examine the operating conditions. Tentative selection of cylinder model MY: Basic short type MYB: Basic standard type MYM: Slide bearing guide type Select larger cylinder size. Change the guide type. Determination of load mass and allowable moment, NG In case of the MY and MYB only Select the different guide type. Please refer to the information by the guide manufacturer. NG OK OK Examine the cushioning mechanism at stroke end. Built-in cushion stroke adjustment unit NG External shock absorber NG OK OK Examine the auto switch mounting (model). Model selected If the load factor is high in comparison to cylinder output, this will have a negative affect on the cylinder, and may cause malfunctions. Select the cylinder so that the load factor is less than 0. in comparison to the cylinder output (particularly when using an external guide). The selection calculation has not considered factors such as piping and cable bearings etc. Please calculate and select a load factor that considers external forces such as piping and cable bearing. When using an external cushioning unit, we recommend installing a suitable unit near the load s center of gravity. It is possible to select all models of mechanically jointed rodless cylinder (the MY series) according to the procedure indicated above. Refer to the separate operation manual for further explanation, and please consult with SMC regarding any questions.

5 Model Selection MY Series Maximum operating speed Warning Reduction circuits or shock absorbers may be necessary. If the driven object is fast, or the weight is large, the cylinder cushion alone may not be able to absorb the impact. In this case, install a reduction circuit before the cushion, or install an external shock absorber to reduce the impact. Please check the machine s rigidity as well. External shock absorbers must meet the characteristics listed on page. Cylinders may be damaged if shock absorbers that do not have the recommended characteristics are used. ow to mount a load Stroke positioning Shock absorber Maximum operating speed (mm/s) Rubber bumper MY Cylinder stroke end MYB ir cushion MYB Direct loaded MYM MY MYB Stroke adjustment unit (Option:, unit) Shock absorber MYM MYM Note ) MYC External stopper External shock Note ) absorber MY MYB MYM Note ) Note ) MY MY T MY W MYC Use of external guide Note ) Cylinder stroke end Rubber bumper ir cushion MY MYB MY /T MY MYB MYM Stroke adjustment unit (Option:, unit) Shock absorber MYB Note ) Note ) External stopper External shock absorber Note ) Note ) Mechanically jointed rodless cylinders can be used with a direct load within the allowable range for each guide type, however, careful alignment is necessary for connection to a load which has an external guide mechanism. The mounting bracket for the external guide and the floating bracket must be mounted in a position that guarantees freedom of movement to the floating Y and Z axial. Ensure that the floating bracket is set so that the thrust transmission section has even contact. For details on the floating Y and Z axial, refer to the coordinates and moments in the selection method on page. Note ) The shock absorber must meet the conditions mentioned on pages and. Note ) s the external shock absorber, a unit with appropriate capacity and features should be installed close to the load center of gravity. Note ) Use the stroke adjustment unit of the MYB series with an external guide. Note ) Shown below are the details of the maximum operating speed for the stroke adjustment unit. MY MYB Note ) MY Series, Maximum Operating Speed when Using the Stroke djustment Unit Series Bore size (mm) Stroke adjustment range Inside the fine stroke adjustment range unit 0, MYB unit 000,,, 0,, unit 000 MYM,,,, unit 00 Outside the fine stroke adjustment range means that when a intermediate fixing spacer (short spacer, long spacer) is used. Intermediate fixing spacer Refer to pages and. Unit: mm/s Outside the fine stroke adjustment range D- -X

6 MY Series Types of Moment and oad Mass pplied to Rodless Cylinders Multiple moments may be generated depending on the mounting orientation, load and position of the center of gravity. Coordinates and Moments oad Mass and Static Moment x z M: Rolling M: Yawing M: Pitching y orizontal mounting x M z Y Vertical mounting M Y X m x g M Z m x g M g: Gravitational acceleration Dynamic Moment y y x Ceiling mounting M Y X m x g M y Mounting direction orizontal Static load m m M m x g x X Static moment M M m x g x Y x Ceiling m M m x g x X m x g x Y Wall mounting Z Wall m X m x g M z Vertical Note) m m x g x Z m x g x Z m x g x X m x g x Y Note) m is a mass movable by thrust. Use 0. to 0.7 times the thrust (differs depending on the operating speed) as a guide for actual use. M Z υa ME mn x g FE ME FE Y υa mn x g M g : Gravitational acceleration υa : verage speed δ : Bumper coefficient Mounting direction orizontal Ceiling Wall Vertical Dynamic load FE.υa x δ x mn x g ME x FE x Z Dynamic moment ME Dynamic moment ME will not be generated. ME x FE x Y Note) Regardless of the mounting orientation, dynamic moment is calculated with the formulae above. Calculation of Guide oad Factor. Maximum load mass (), static moment (), and dynamic moment () (at the time of impact with stopper) must be examined for the selection calculations. To evaluate, use υa (average speed) for () and (), and υ (impact speed υ =.υa) for (). Calculate m max for () from the maximum allowable load graph (m, m, m ) and Mmax for () and () from the maximum allowable moment graph (M, M, M). Sum of guide load factors oad mass [m] Static moment [M] Dynamic moment [ME] Σα = + + Maximum load mass [m max] llowable static moment [Mmax] Note ) Note ) llowable dynamic moment [MEmax] Note ) Moment caused by the load, etc., with cylinder in resting condition. Note ) Moment caused by the impact load equivalent at the stroke end (at the time of impact with stopper). Note ) Depending on the shape of the workpiece, multiple moments may occur. When this happens, the sum of the load factors (Σα) is the total of all such moments.. Reference formulas [Dynamic moment at impact] Use the following formulas to calculate dynamic moment when taking stopper impact into consideration. m : oad mass (kg) υ : Impact speed (mm/s) F : oad (N) : Distance to the load s center of gravity (m) FE : oad equivalent to impact (at impact with stopper) (N) υa : verage speed (mm/s) M : Static moment (N m) Note ) υ =.υa (mm/s) FE =.υa x δ x m g Note ) ME = FE =.7υaδm (N m) Note ).υaδ is a dimension less coefficient for calculating impact force. Note ) verage load coefficient = : This coefficient is for averaging the maximum load moment at the time of stopper impact according to service life calculations.. For detailed selection procedure, please refer to pages,, 8, 9. 8 ( ) ME : Dynamic moment (N m) δ : Bumper coefficient With rubber bumper = /00 With air cushion = /00 With shock absorber = /00 g : Gravitational acceleration (9.8 m/s ) υ m FE ME

7 Model Selection MY Series Calculation of Guide oad Factor Operating Conditions Cylinder MY-00 verage operating speed υa 00 mm/s Mounting direction orizontal mounting Cushion Rubber bumper (δ = /00) oad Blocking Z 0 Y W: Workpiece (0.8 kg) Calculation of oad Factor for Static oad Y MY-00 Mounting Direction. orizontal z. Wall mounting mounting Page 8 x y x. Ceiling mounting m: Mass m m max (from q of graph MY / m) = 0.7 (kg) oad factor α = m / m max = 0.8 / 0.7 = 0.08 M: Moment X Workpiece no. W Mass (m) 0.8 kg x z X-axis mm y. Vertical mounting Page z Refer to the pages mentioned above for actual examples of calculation for each orientation. For ceiling mounting, refer to. Workpiece Mass and Center of Gravity Center of gravity Y-axis 0 mm X y x Z-axis mm z y MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM M max (from w of graph MY / M) = (N m) M = m x g x X = 0.8 x 9.8 x x 0 - = 0.0 (N m) oad factor α = M / M max = 0.0 / = 0.0 M: Moment M max (from e of graph MY / M) = 0.8 (N m) M = m x g x Y = 0.8 x 9.8 x 0 x 0 - = 0.08 (N m) oad factor α = M / M max = 0.08 / 0.8 = 0. m M m Y M 9 D- -X

8 MY Series Calculation of Guide oad Factor Calculation of oad Factor for Dynamic Moment Equivalent load FE at impact FE =.υa x δ x m x g =. x 00 x x 0.8 x 9.8 =.7 (N) 00 ME: Moment ME max (from r of graph MY / M where.υa = mm/s) =.8 (N m) ME = x FE x Z = x.7 x x 0 - = 0.88 (N m) oad factor α = ME / ME max = 0.88 /.8 = 0. ME: Moment ME max (from t of graph MY / M where.υa = mm/s) = 0.9 (N m) ME = x FE x Y = x.7 x 0 x 0 - = 0. (N m) oad factor α = ME / ME max = 0. / 0.9 = 0. FE ME M FE ME M Y Z Sum and Examination of Guide oad Factors Σα = α + α + α + α + α = = 0.9 The above calculation is within the allowable value, and therefore the selected model can be used. Select a shock absorber separately. In an actual calculation, when the sum of guide load factors Σα in the formula above is more than, consider decreasing the speed, increasing the bore size, or changing the product series. oad Mass llowable Moment MY, MYB/m oad mass (kg) q ø ø0 ø ø ø ø ø MY, MYB/M Moment (N m) w r ø ø0 ø ø ø ø ø MY, MYB/M Moment (N m) e ø ø0 ø ø ø ø ø MY, MYB/M Moment (N m) t 00 ø ø0 ø ø ø ø ø Piston speed (mm/s) Piston speed (mm/s) Piston speed (mm/s) Piston speed (mm/s) Refer to page 9 for the MYM.

9 Model Selection MY Series Mounting of Fitting and Speed Controller When the stroke adjustment unit is used with MYB and MYM, the fittings mountable on the front or back port will be limited to those listed below. In such cases, since direct mount type speed controllers cannot be mounted, use in-line type speed controllers. (Except MYB/0/ and MYM) Mounting (Mounting a male connector) Stroke adjustment unit Refer to Best Pneumatics No. 7 for the details of fittings and speed controllers. Direct Mount Type Speed Controller Elbow/Universal type SF In-line type S0F Back side ead cover Front side Cylinder Connection pplicable tubing model size thread O.D. (mm) MY MY MY MY M M Rc/8 Rc/ Fitting (Male connector) Fitting type Male connector exagon socket head male connector Male connector exagon socket head male connector exagon socket head male connector Male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Fitting model KQ-M KQ-M KQS-M KQ-M KQ-M KQ0-M KQ0-M KQS0-M KQ0-M KQS-M KQ-M KQ-M KQ0-M KQ0-M KQS0-M KQ0-M KQ0-M KQS0-M KQ-0S KQ-0S KQ0-0S KQS0-0S KQ0-0S KQ0-0S KQS0-0S KQ0-0S KQ0-0S KQS0-0S KQ0-0S KQS0-0S KQ0-0S KQ0-0S KQS0-0S KQ0-0S KQ0-0S KQS0-0S KQ08-0S KQ08-0S KQS08-0S Cylinder Connection pplicable tubing model size thread O.D. (mm) MY MY0 MY Rc/ Rc/8 Rc/ Fitting type Male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Male connector Male connector exagon socket head male connector Male connector exagon socket head male connector Fitting model KQ0-0S KQ0-0S KQ0-0S KQS0-0S KQ08-0S KQ08-0S KQS08-0S KQ0-0S KQ0-0S KQS0-0S KQ08-0S KQ08-0S KQS08-0S KQ0-0S KQ0-0S KQS0-0S KQ-0S KQ-0S KQS-0S KQ0-0S KQ08-0S KQ0-0S KQ0-0S KQS0-0S KQ-0S KQ-0S KQS-0S KQ-0S MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM D- -X

10 MY Series Basic, short type (Rubber bumper) ø, ø, ø, ø, ø, ø0, ø MYB Series Basic, standard type (ir cushion) ø, ø, ø, ø, ø, ø0, ø MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM D- -X

11 MY/B Series Model Selection The following are steps for selecting the MY series which is best suited to your application. Calculation of Guide oad Factor Operating Conditions Cylinder MYB-00 verage operating speed υa 00 mm/s Mounting direction Vertical mounting Cushion Shock absorber (δ=/00) Mounting Direction. orizontal z. Wall mounting mounting y Page 9 Page 8 x y x z MYB-00. Ceiling mounting. Vertical mounting x x z y z y W: Workpiece ( kg) Refer to the pages mentioned above for actual examples of calculation for each orientation. For ceiling mounting, refer to page. oad Blocking Y Workpiece Mass and Center of Gravity Workpiece no. Mass (m) X-axis Center of gravity Y-axis Z-axis Z W kg mm 0 mm mm Y X Calculation of oad Factor for Static oad m : Mass m is a mass moveable by thrust. Use 0. to 0.7 times the thrust (differs depending on the operating speed) as a guide for actual use. M: Moment m Z M M max (from q of graph MY/B/M) = (N m) M = m x g x Z = x 9.8 x 0.0 x 0 - =.8 (N m) oad factor α = M / M max =.8 / = 0.9 m Z

12 Model Selection MY/B Series Calculation of Guide oad Factor Calculation of oad Factor for Dynamic Moment Equivalent load FE at impact FE =.υa x δ x m x g =. x 00 x x x 9.8 =. (N) 00 ME: Moment M ME max (from w of graph MY/B/M where.υa = mm/s) =.8 (N m) ME = x FE x Z = x. x x 0 - =. (N m) oad factor α = ME ME max =..8 = 0.8 Sum and Examination of Guide oad Factors Σα = α + α = 0.87 The above calculation is within the allowable value, and therefore the selected model can be used. Select a shock absorber separately. In an actual calculation, when the sum of guide load factors Σα in the formula above is more than, consider decreasing the speed, increasing the bore size, or changing the product series. Calculating the above formula is easy with the [SMC Pneumatics CD System]. llowable Moment MY, MYB/M Moment (N m) q w ø ø ø m Z MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM ø Piston speed (mm/s) D- -X

13 MY/B Series Maximum llowable Moment / Maximum llowable oad Series MY MYB Bore size (mm) 0 Maximum llowable Moment (N m) Maximum llowable oad (kg) M M M m m m The above values are the maximum allowable values for moment and load. Refer to each graph regarding the maximum allowable moment and maximum allowable load for a particular piston speed. x z M: Rolling Types of Moment and oad Mass pplied to Rodless Cylinders Multiple moments may be generated depending on the mounting orientation, load and position of the center of gravity. Coordinates and Moments M: Yawing M: Pitching y oad Mass and Static Moment orizontal mounting x M Vertical mounting z Y M Y X m x g M g: Gravitational acceleration M Z m x g y y x Ceiling mounting M Y X m x g M y Wall mounting X m x g Mounting direction orizontal Ceiling Wall Vertical Static load m Note) m m m m M m x g x X m x g x X m x g x Z Static M m x g x Y m x g x Y m x g x Z moment M m x g x X m x g x Y x Note) m is a mass movable by thrust. Use 0. to 0.7 times the thrust (differs depending on the operating speed) as a guide for actual use. M Z M z Dynamic Moment M Z υa ME FE υa mn x g ME FE mn x g Y M g : Gravitational acceleration υa: verage speed δ : Bumper coefficient Mounting direction orizontal Ceiling Wall Vertical Dynamic load FE.υa x δ x mn x g ME x FE x Z Dynamic moment ME Dynamic moment ME will not be generated. ME x FE x Y Note) Regardless of the mounting orientation, dynamic moment is calculated with the formulae above.

14 Model Selection MY/B Series Select the moment from within the range of operating limits shown in the graphs. Note that the maximum allowable load value may sometimes be exceeded even within the operating limits shown in the graphs. Maximum llowable Moment / Therefore, also check the allowable load for the selected conditions. MY, MYB/M MY, MYB/M MY, MYB/M Moment (N m) Select the moment from within the range of operating limits shown in the graphs. Note that the maximum allowable load value may sometimes be exceeded even within the operating limits shown in the graphs. Maximum llowable oad / Therefore, also check the allowable load for the selected conditions. MY, MYB/m MY, MYB/m MY, MYB/m Piston speed (mm/s) ø ø0 ø ø ø ø ø Moment (N m) ø ø0 ø ø ø ø ø MY max. MYB max. MY max. MYB max. 0 Piston speed (mm/s) Moment (N m) ø ø0 ø ø ø ø ø MY max. MYB max. Piston speed (mm/s) MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM oad mass (kg) ø ø0 ø ø ø ø ø oad mass (kg) ø ø0 ø ø ø ø ø oad mass (kg) ø ø0 ø ø ø ø ø MY max. MYB max. MY max. MYB max. Piston speed (mm/s) Piston speed (mm/s) MY max. MYB max. Piston speed (mm/s) 7 D- -X

15 MY/B Series Cushion Capacity bsorption Capacity of Rubber Bumper (MY) MY 000 orizontal collision: P = 0. MPa MY 000 orizontal collision: P = 0. MPa Collision speed (mm/s) Rubber bumper Collision speed (mm/s) Rubber bumper mmax mmax oad mass (kg) mmax mmax mmax mmax oad mass (kg) MY orizontal collision: P = 0. MPa MY orizontal collision: P = 0. MPa Collision speed (mm/s) Rubber bumper Collision speed (mm/s) Rubber bumper mmax mmax oad mass (kg) mmax 0 0 mmax mmax mmax oad mass (kg) Rubber Bumper Displacement (dditional Stroke due to Pressure on Each Side) The stop position of the built-in rubber bumper of the MY series varies depending on the operating pressure. For alignement at the stroke end, find the guideline for the stroke end position in operation as follows. Find the incremental displacement at the operating pressure in the graph and add it to the stroke end position at no pressurization. If positioning accuracy is required for the stop position at the stroke end, consider installing an external positioning mechanism or switching to the air cushion type (MYB). MY MY MY MY dditional stroke (mm) dditional stroke (mm) dditional stroke (mm) dditional stroke (mm) Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY) Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY) Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY) Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY)

16 Model Selection MY/B Series MY orizontal collision: P = 0. MPa MY0 orizontal collision: P = 0. MPa Collision speed (mm/s) Rubber bumper Collision speed (mm/s) Rubber bumper 00 MY 0 0 mmax mmax mmax oad mass (kg) orizontal collision: P = 0. MPa mmax mmax mmax oad mass (kg) MYB MY MYB MYM 000 MYC MY Collision speed (mm/s) Rubber bumper MY T MY W MYC mmax mmax mmax oad mass (kg) MY /T MY MYB MYM MY MY0 MY dditional stroke (mm)..8. dditional stroke (mm)..8. dditional stroke (mm) D Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY) Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY0) Pressure (MPa) dditional Stroke due to Pressure on Each Side (MY) 9 -X

17 MY/B Series Cushion Capacity bsorption Capacity of ir Cushion and Stroke djustment Unit (MYB) MYB Collision speed (mm/s) unit unit ir cushion orizontal collision: P = 0. MPa Maximum collision speed () with fixed intermediate position Maximum collision speed () with fixed intermediate position MYB Collision speed (mm/s) unit orizontal collision: P = 0. MPa Maximum collision speed () with fixed intermediate position unit ir cushion Maximum collision speed () with fixed intermediate position mmax mmax oad mass (kg) 0 mmax mmax mmax oad mass (kg) mmax 0 MYB Collision speed (mm/s) ir cushion, unit orizontal collision: P = 0. MPa Maximum collision speed with fixed intermediate position unit MYB Collision speed (mm/s) ir cushion, unit orizontal collision: P = 0. MPa Maximum collision speed with fixed intermediate position unit mmax mmax mmax mmax mmax mmax oad mass (kg) oad mass (kg) MYB Collision speed (mm/s) orizontal collision: P = 0. MPa Maximum collision speed with fixed intermediate position ir cushion, unit unit MYB0 Collision speed (mm/s) orizontal collision: P = 0. MPa Maximum collision speed with fixed intermediate position ir cushion, unit unit mmax mmax mmax mmax mmax mmax oad mass (kg) oad mass (kg) MYB Collision speed (mm/s) orizontal collision: P = 0. MPa Maximum collision speed with fixed intermediate position ir cushion, unit unit 0 00 ir Cushion Stroke Bore size (mm) 0 Cushion stroke Unit: mm mmax oad mass (kg) mmax mmax

18 Model Selection MY/B Series Calculation of bsorbed Energy for Stroke djustment Unit with Built-in Shock bsorber Unit: Nm Type of collision Kinetic energy E Thrust energy E bsorbed energy E orizontal υ m s Vertical (downward) υ m s Vertical (upward) s υ m F s F s + m g s F s m g s E + E <Stroke adjustment of the adjustment bolt> oosen the lock nut for the adjustment bolt, adjust the stroke on the head cover side with a hexagon wrench, and secure with a lock nut. <Stroke adjustment of the shock absorber: MYB> oosen the two unit fixing bolts on the shock absorber side and rotate the shock absorber for stroke adjustment. Tighten the unit fixing bolts equally to secure the shock absorber. Use caution not to overtighten the fixing bolts. (Refer to MYB Stroke djustment Unit Tightening Torque for Fixing Bolts. ) MYB Stroke djustment Unit Tightening Torque for Fixing Bolts Bore size (mm) Unit,,, 0 Caution m υ. Use caution not to have your hands caught in the unit. When using a cylinder with stroke adjustment unit, the space between the slide table (slider) and the stroke adjustment unit is very narrow. Care should be taken to avoid the danger of hands being caught in this small space. Install a protective cover to prevent the risk of accidents to the human body.. The stroke adjustment unit may interfere with the mounting bolt when mounting the cylinder on the equipment. oosen the unit fixing bolt and dislocate the stroke adjustment unit before mounting the cylinder. fter fixing the cylinder, move the stroke adjustment unit back to the desired location and tighten the unit fixing bolt. Use caution not to overtighten the fixing bolts. (Refer to MYB Stroke djustment Unit Tightening Torque for Fixing Bolts.) Stroke djustment Unit Fine Stroke djustment Range Unit: mm Bore size (mm) Fine stroke adjustment range, 0 to 0, 0 to, 0 0 to 0 to Note) The maximum operating speed will differ when the stroke adjustment unit is used outside the maximum fine stroke adjustment range (with reference to the fixed stroke end), such as at a fixed intermediate position (X, X7). (Refer to the graph on page.) Symbols υ : Speed of impacting object (m/s) m: Weight of impacting object (kg) F : Cylinder thrust (N) g : Gravitational acceleration (9.8 m/s ) s : Shock absorber stroke (m) Note) The speed of the impacting object is measured at the time of collision with the shock absorber. Note) With an operating pressure of 0. MPa or larger, the use of a cushion or an external shock absorber conforming to the conditions on pages and is recommended. Stroke djustment Unit: Nm Tightening torque Caution. Use an external guide for the MYB stroke adjustment unit. If a stroke adjustment unit is used where a load is directly applied, the collision reaction may cause damage to the cylinder.. Conduct stroke adjustment with an adjustment bolt as follows: The adjustment bolt should be secured on the same surface as the shock absorber after stroke adjustment. If the stopper surface of the shock absorber and the end surface of the adjustment bolt are not on the same level, it may result in an unstable stop position of the slide table or reduced durability.. Securing the unit body <MYB> djustment bolt lock nut Stroke adjustment unit fixing bolt Shock absorber Tighten the four unit fixing bolts equally to secure the unit body.. Do not fix and use the stroke adjustment unit at an intermediate position (MYB). When the stroke adjustment unit is fixed in an intermediate position, slippage can occur depending on the amount of energy released at the time of an impact. In that case, use a short spacer or a long spacer. For other lengths, please consult with SMC. (Refer to MYB Stroke djustment Unit Tightening Torque for Fixing Bolts. ) If the stroke adjustment unit is fixed at an intermediate position, the energy absorption capacity may be different. For this reason, refer to the maximum absorbed energy listed above, and use the adjustment unit within the allowable absorption capacity. MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM D- -X

19 MY/B Series External Shock bsorber Selection When the positioning of the stop position is necessary or the absorption capacity of the built-in cushion is not sufficient, refer to the selection procedure below and consider the installation of an external shock absorber. Selection Confirmation Items with Use of External Shock bsorber q When the cylinder alone is used. Cylinder load factor selection External shock absorber Impact force and absorption capacity confirmation MY Collision deceleration (m/s ) N llowable impact force with use of external shock absorber 0 mmax 0 mmax mmax Weight (kg) 0 MY MY Collision deceleration (m/s ) N Collision deceleration (m/s ) N mmax mmax mmax mmax mmax mmax Weight (kg) Weight (kg) MY MY Collision deceleration (m/s ) N Collision deceleration (m/s ) N mmax mmax Weight (kg) mmax mmax mmax Weight (kg) mmax

20 Model Selection MY/B Series MY0 Collision deceleration (m/s ) Collision deceleration (m/s ) MY N mmax mmax mmax Weight (kg) 700 N mmax mmax mmax Weight (kg) w When the external guide is used. Piston Speed with Use of External Shock bsorber Bore size (mm) 0 MY MYB External guide load factor selection External shock absorber Impact force and absorption capacity confirmation to 00 mm/s n external shock absorber can be used within the above piston speed range. In conjunction with the absorption capacity selection, however, also confirm the conditions which make the shock absorber collision impact force to stay within the allowable range in the graph. Use of an external shock absorber with conditions exceeding the allowable range may damage the cylinder. To confirm the collision impact force of the shock absorber, first find the impact force or acceleration under the operating conditions using the selection information or selection software provided by the manufacturer and then, refer to the graph. (The selection should allow a sufficient margin because the value calculated by the selection software involves an error with reference to the actual value.) MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM Example of Recommended Use of the External Shock bsorber MY MY MY 0 RB-OEM0.M RB-OEM0.M RB-OEM.0MF MY RB-OEM.M x D- -X

21 Mechanically Jointed Rodless Cylinder/Basic Type MY/B Series ø, ø, ø, ø, ø, ø0, ø ow to Order Basic Cylinder bore size mm mm mm mm mm 0 0 mm mm Bore size (mm),,,, 0 B MY Type Short type (Rubber bumper) Standard type (ir cushion) B Port thread type Symbol Type Bore size M ø, ø Nil Rc ø, ø, ø TN NPT ø0, ø TF G Cylinder stroke (mm) Standard stroke (mm) Maximum manufacturable stroke (mm) 00, 0, 00, 0, 00, , 0, 900, 000, 0 0, 00, 0, Strokes are manufacturable in mm increments, up to the maximum stroke. owever, when the stroke is 9 mm or less, the air cushion capability lowers and multiple auto switches cannot be mounted. Pay special attention to this point. lso when exceeding a 00 mm stroke, specify -XB at the end of the model number. For details, refer to the Made to Order Specifications. M9BW Made to Order Refer to page for details. Number of auto switches Nil pcs. S pc. n n pcs. uto switch Nil Without auto switch (Built-in magnet) Refer to the table below for auto switch model numbers. Stroke adjustment unit symbol Refer to Stroke adjustment unit on page. Stroke adjustment unit is not available for MY. pplicable uto Switches/Refer to pages 7 to 70 for further information on auto switches. Type Solid state auto switch Reed auto switch Special function Diagnostic indication (-color indicator) Water resistant (-color indicator) Electrical entry Indicator light Wiring (Output) oad voltage DC C uto switch model Perpendicular -wire (NPN) V, V -wire (PNP) -wire V -wire (NPN) V, V Grommet Yes -wire (PNP) V -wire V -wire (NPN) V, V -wire (PNP) -wire V -wire Yes (NPN equiv.) V 9V Grommet 00 V 9V -wire V V No 00 V or less 90V In-line M9NV M9N M9PV M9P M9BV M9B M9NWV M9NW M9PWV M9PW M9BWV M9BW M9NV M9N M9PV M9P M9BV M9B ead wire length (m) 0. (Nil) (M) () (Z) Pre-wired connector Water resistant type auto switches can be mounted on the above models, but in such case SMC cannot guarantee water resistance. Consult with SMC regarding water resistant types with the above model numbers. m type lead wire is only applicable to D-9. ead wire length symbols: 0. m Nil (Example) M9NW Solid state auto switches marked with are produced upon receipt of order. m M (Example) M9NWM Separate switch spacers (BMY-0) are required for retrofitting of auto switches. m (Example) M9NW m Z (Example) M9NWZ There are other applicable auto switches than listed above. For details, refer to page. Refer to pages 8 and 9 for the details of auto switches with a pre-wired connector. uto switches are shipped together (not assembled). (Refer to page for the details of auto switch mounting.) pplicable load IC circuit IC circuit IC circuit IC circuit IC circuit Relay, PC Relay, PC

22 Mechanically Jointed Rodless Cylinders MY/B Series MY (Rubber bumper) MYB (ir cushion) Rubber bumper Symbol ir cushion Made to Order: Individual Specifications (For details, refer to page.) Symbol Specifications -X8 elical insert thread Made to Order (For details, refer to pages 70 to 89.) Symbol Specifications -XB ong stroke type Shock absorber soft type -XB RJ series type Stroke djustment Unit Specifications Specifications Bore size (mm),, 0, Fluid ction Operating pressure range 0. to 0.8 MPa ir Double acting 0. to 0.8 MPa Proof pressure mbient and fluid temperature. MPa to 0 C Cushion ubrication Rubber bumper (MY) / ir cushion (MYB) Not required (Non-lube) Stroke length tolerance 000 mm or less +.8, From 00 mm Note) Port size (Rc, NPT, G) M x 0.8 /8 / /8 Note) The tolerance of the MY is a value with no pressurization. When a rubber bumper is used, the stroke of the MY varies according to the operating pressure. To find the stroke length tolerance at each operating pressure, double the additional stroke due to pressure on each side (pages 8 and 9) and add it. Piston Speed Bore size (mm) 0 Without stroke adjustment unit (MY) Without stroke adjustment unit (MYB) to 00 mm/s to 000 mm/s Stroke adjustment unit to 000 mm/s ( and unit/myb) (ø, ø unit: to 0 mm/s) External shock absorber (low reaction type) to 00 mm/s Refer to "External Shock bsorber Selection" on pages and. When the RB series is used, operate at a piston speed that will not exceed the absorption capacity of the air cushion and stroke adjustment unit. Because of its structure, the fluctuation of this cylinder s operating speed is greater than rod type cylinders. For applications that require constant speed, select an applicable equipment for the level of demand. Bore size (mm),,, 0 Unit symbol Shock absorber model Shock absorber soft type RJ series (-XB) model RB0 RJ0 RB007 RJ007 RB007 RJ007 RB RJ RB RJ RB RB Stroke adjustment Without spacer 0 to 0 0 to 0 to range by intermediate With short spacer 0 to to to fixing spacer (mm) With long spacer to 0 to to 8 Stroke adjustment range is applicable for one side when mounted on a cylinder. Stroke djustment Unit Symbol 0 to to 8 8 to 7 RB7 MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM eft side stroke adjustment unit Without unit : With low load shock absorber + djustment With short spacer bolt With long spacer : With high load shock absorber + djustment With short spacer bolt With long spacer Without unit Nil S S 7S S S 7S Spacers are used to fix the stroke adjustment unit at an intermediate stroke position. Shock bsorber Specifications Right side stroke adjustment unit : With low load shock absorber + djustment bolt S 7 7 With short spacer S 7 7 With long spacer S : With high load shock absorber + djustment bolt S 7 7 With short spacer S 7 7 With long spacer S Stroke adjustment unit mounting diagram Example of 7 attachment Stroke adjustment unit eft side Right side Intermediate fixing spacer unit ong spacer unit Short spacer Type Max. energy absorption (J) Stroke absorption (mm) Max. collision speed (mm/s) Max. operating frequency (cycle/min) Spring Extended force (N) Compressed Operating temperature range ( C) RB RB RB to 0 RB RB Note) The shock absorber service life is different from that of the MY/B cylinders depending on operating conditions. llowable operating cycle under the specifications set in this catalog is shown below.. million times RB08 million times RB0 to RB7 Note) Specified service life (suitable replacement period) is the value at room temperature ( to C). The period may vary depending on the temperature and other conditions. In some cases the absorber may need to be replaced before the allowable operating cycle above. D- -X

23 MY/B Series Theoretical Output Unit: N Bore Piston Operating pressure (MPa) size area (mm) (mm ) Note) Theoretical output (N) = Pressure (MPa) x Piston area (mm ) Option Stroke djustment Unit Part No. Note) Refer to page for details about adjustment range. Component Parts MYB- (Without spacer) MYB Stroke adjustment unit Bore size 0 mm mm mm mm mm 0 mm mm Unit no. Symbol Stroke adjustment unit Mounting position eft unit Right eft unit Right MYB-- (With short spacer) Weight Model N Bore size (mm) Basic weight dditional weight per 0 mm stroke Weight of moving parts MY MYB Calculation method/example: MYB-00 Basic weight 0.7 kg dditional weight 0.7/0 st unit weight 0. kg Intermediate fixing spacer Nil Without spacer Short spacer 7 ong spacer Spacer delivery type Nil Unit installed N Spacer only Spacers are used to fix the stroke adjustment unit at an intermediate stroke position. Spacers are shipped for a set of two. MYB--7 (With long spacer) Stroke adjustment unit weight (per unit) unit weight MYB--N (Short spacer only) Unit: kg unit weight Cylinder stroke 00 st x x.97 kg Stroke adjustment unit Intermediate fixing spacer Stroke adjustment unit Stroke adjustment unit Stroke adjustment unit Short spacer MYB--7N (ong spacer only) Short spacer ong spacer ong spacer

24 Mechanically Jointed Rodless Cylinders MY/B Series Construction: ø, ø, ø, ø MY w e u!7! t! q r y!!0!9 Component Parts No. 7 8 Description Cylinder tube ead cover Slide table Piston yoke Piston Wear ring Belt separator Belt clamp o Material Note luminum alloy ard anodized luminum alloy ard anodized luminum alloy Electroless nickel plated Stainless steel luminum alloy Polyacetal Polyacetal Polybutylene terephthalate Carbon steel Electroless No. 7 9 Description Material Spring pin Carbon tool steel Seal ring luminum alloy Bearing Polyacetal Inner wiper Special resin exagon socket head cap screw Chrome molybdenum steel exagon socket head cap screw Chrome molybdenum steel exagon socket head set screw Chrome molybdenum steel exagon socket head plug Carbon steel Magnet Seal magnet Rubber magnet Note nodized Replacement Parts/Seal No. Description Material Qty. MY MY MY MY Urethane 9 Seal belt MY-C- Stroke MY-C- Stroke MY-C- Stroke MY-- Stroke Polyamide 0 Dust seal band Stainless MY-B- Stroke MY-B- Stroke MY-B- Stroke MY-B- Stroke steel 8 Scraper Polyamide MY--R MY--R7 MY--R8 MY--R9 Gasket bumper Piston seal O-ring NBR NBR NBR MY-PS Seal kit includes!,! Order the seal kit based on each bore size. Seal kit includes a grease pack (0 g). When o and!0 are shipped as single units, a grease pack is included (0 g per 000 strokes). Order with the following part number when only the grease pack is needed. Grease pack part number: GR-S-00 (0 g), GR-S-0 ( g) For instructions on how to replace replacement parts/seals, refer to the operation manual. MY-PS MY-PS MY-PS 7 MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM D- -X

25 MY/B Series Construction: ø, ø, ø0 w e i!0 t!7!! q @ Component Parts No. 7 8 Description Cylinder tube ead cover Slide table Piston yoke Piston Wear ring Belt clamp Belt separator Stopper Material Note luminum alloy ard anodized luminum alloy ard anodized luminum alloy Electroless nickel plated Stainless steel Polyamide Polyacetal Polybutylene terephthalate Polyacetal Carbon steel Electroless nickel plated No Description Material Seal ring luminum alloy Bearing Polyacetal Inner wiper Special resin exagon socket head cap screw Chrome molybdenum steel exagon socket head cap screw Chrome molybdenum steel exagon socket head set screw Chrome molybdenum steel exagon socket head plug Carbon steel Magnet Seal magnet Rubber magnet Note nodized Replacement Parts/Seal No. Description Material Qty. MY MY MY0 9 Seal belt Urethane MY-C- Stroke MY-C- Stroke MY0-C- Stroke 0 Dust seal band Stainless steel MY-B- Stroke MY-B- Stroke MY0-B- Stroke Scraper Polyamide MY--C9 MY--C9 MY0--C9 Gasket bumper Piston seal O-ring NBR NBR NBR MY-PS MY-PS MY0-PS Seal kit includes!,!, Order the seal kit based on each bore size. Seal kit includes a grease pack (0 g). When o and!0 are shipped as single units, a grease pack is included (0 g per 000 strokes). Order with the following part number when only the grease pack is needed. Grease pack part number: GR-S-00 (0 g), GR-S-0 ( g) For instructions on how to replace replacement parts/seals, refer to the operation manual. 8

26 Mechanically Jointed Rodless Cylinders MY/B Series Construction: ø, ø, ø, ø MYB w e q No. 7 o Component Parts Description Material Note Cylinder tube ead cover Slide table Piston yoke Piston Wear ring Belt separator Belt clamp Stopper Spring pin Tube gasket Piston seal O-ring Cushion seal luminum alloy luminum alloy luminum alloy Stainless steel luminum alloy Polyacetal Polyacetal Polybutylene terephthalate Carbon steel Carbon tool steel NBR NBR NBR NBR Seal kit Order the seal kit based on each bore size. Seal kit includes a grease pack (0 g). When o and!0 are shipped as single units, a grease pack is included (0 g per 000 strokes). Order with the following part number when only the grease pack is needed. Grease pack part number: GR-S-00 (0 g), GR-S-0 ( g) For instructions on how to replace replacement parts/seals, refer to the ard anodized ard anodized Electroless nickel plated MYB-PS Electroless No Description Material Cushion boss luminum alloy Bearing Polyacetal Inner wiper Special resin exagon socket head cap screw Chrome molybdenum steel exagon socket head cap screw Chrome molybdenum steel exagon socket head set screw Chrome molybdenum steel exagon socket head plug Carbon steel Magnet Seal magnet Rubber magnet Cushion ring Brass Cushion needle Rolled steel Note Nickel plated Replacement Parts/Seal No. Description Material Qty. MYB MYB MYB MYB 9 Seal belt Urethane Polyamide MYB-C- Stroke MYB-C- Stroke MYB-C- Stroke MYB-- Stroke 0 Stainless Dust seal band steel MYB-B- Stroke MYB-B- Stroke MYB-B- Stroke MYB-B- Stroke 8 Scraper Polyamide MY--R MY--R7 MY--R8 MY--R9 8 O-ring NBR K0009 K0009 K00 K00 (ø x ø.8 x ø.) (ø x ø.8 x ø.) (ø7. x ø.7 x ø.7) (ø8. x ø. x ø.9) 9 MYB-PS MYB-PS MYB-PS 9 MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM D- -X

27 MY/B Series Construction: ø, ø, ø0 w e i!0 @ @ Component Parts Description No. 7 8 Cylinder tube ead cover Slide table Piston yoke Piston Wear ring Belt clamp Belt separator Stopper Cushion boss Bearing Material luminum alloy luminum alloy luminum alloy Stainless steel Polyamide Polyacetal Polybutylene terephthalate Polyacetal Carbon steel luminum alloy Polyacetal Note ard anodized ard anodized Electroless nickel plated Electroless nickel plated No Description Inner wiper exagon socket head cap screw exagon socket head cap screw exagon socket head set screw exagon socket head plug Magnet Seal magnet Cushion needle Material Special resin Chrome molybdenum steel Chrome molybdenum steel Chrome molybdenum steel Carbon steel Rubber magnet Rolled steel Note Nickel plated Replacement Parts/Seal No. Description 9 Seal belt Material Urethane Qty. MYB MYB MYB0 MYB-C- Stroke MYB-C- Stroke MYB0-C- Stroke 0 7 Dust seal band Scraper O-ring Tube gasket Piston seal O-ring Cushion seal Stainless steel Polyamide NBR NBR NBR NBR NBR MYB-B- Stroke MY--C9 K0009 (ø x ø.8 x ø.) MYB-PS Seal kit Order the seal kit based on each bore size. Seal kit includes a grease pack (0 g). When o and!0 are shipped as single units, a grease pack is included (0 g per 000 strokes). Order with the following part number when only the grease pack is needed. Grease pack part number: GR-S-00 (0 g), GR-S-0 ( g) For instructions on how to replace replacement parts/seals, refer to the operation manual. 0 MYB-B- Stroke MY--C9 K0009 (ø x ø.8 x ø.) MYB-PS MYB0-B- Stroke MY0--C9 K00 (ø7. x ø.7 x ø.7) MYB0-PS

28 Mechanically Jointed Rodless Cylinders MY/B Series Short Type: ø, ø, ø, ø, ø, ø0, ø MY Bore size Stroke Refer to Specific Product Precautions on page for mounting. G G NG NG () P x P (exagon socket head plug) x MM depth M YW x øb counterbore ød through hole N x x P (exagon socket head plug) MYB MY MYB MYM PB QW NW W UU MYC TT MY C PG PC x øt counter bore depth E PD Q + Stroke Floating bracket mounting thread ( x JJ counterbore, thread depth from bottom KK) x P NE R G Port variation ead cover piping connection can be freely selected to best suit different piping conditions. MY T MY W MYC MY /T MY MYB NG R R MYM Z + Stroke G N R R Slide table operating direction Model MY MY MY MY MY MY0 MY B C E G G JJ M x 0.7 M x 0.7 M x 0.8 M x 0.8 M x M x M8 x. KK D W 7 90 M 8 8 MM M x 0.7 M x 0.7 M x 0.8 M x 0.8 M x M x M8 x. (mm) N Model MY MY MY MY MY MY0 MY NE NG N NW P P PB PC PD M x 0.8 M x 0.8 Rc, NPT, G/8 Rc, NPT, G/8 Rc, NPT, G/ Rc, NPT, G/8 Rc, NPT, G/ PG Q QW T TT UU YW Z D- -X

29 MY/B Series Standard Type: ø, ø, ø, ø, ø, ø0, ø MYB Bore size Stroke Refer to Specific Product Precautions on page for mounting. G G () P YW PE N PB PF QW NW W UU NG NG x MM depth M x P (exagon socket head plug) Cushion needle x øb counterbore ød through hole x x P (exagon socket head plug) PG Q + Stroke G TT Floating bracket mounting thread ( x JJ counterbore, thread depth from bottom KK) PC x øt counter bore depth E PD x P R Port variation ead cover piping connection can be freely selected to best suit different piping conditions. C NE R R NG Z + Stroke G N R R Slide table operating direction Model MYB MYB MYB MYB MYB MYB0 MYB B C E G G JJ KK D W M MM 7 M x M x 0.7. M x M x M x M x M x M x 0.8 M x M x 7 M x M x 8. M8 x. 8 M8 x. (mm) N Model MYB MYB MYB MYB MYB MYB0 MYB NE NG N NW P P PB PC PD M x 0.8 M x 0.8 Rc, NPT, G/8 Rc, NPT, G/8 Rc, NPT, G/ Rc, NPT, G/8 Rc, NPT, G/ PE PF PG Q QW T TT UU YW Z

30 Mechanically Jointed Rodless Cylinders MY/B Series Standard Type: ø, ø, ø, ø, ø, ø0, ø Stroke adjustment unit ow load shock absorber + djustment bolt MYB Bore size Stroke (Shock absorber stroke) TS ES S SD EY EC W FC pplicable cylinder MYB MYB MYB MYB MYB MYB0 MYB Stroke adjustment unit ES EC EY FC h.... S SD TR TS 7 7 ES S TU h TR SD TU W EY EC (mm) Shock absorber model RB0 RB0 RB007 RB007 RB RB RB Note) When the stroke adjustment unit is used, the fitting type, which can be connected with the port on the body front and the back, will be limited. Refer to page for details. eavy-loaded shock absorber + djustment bolt MYB Bore size Stroke (Shock absorber stroke) TS MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM W FC TU Stroke adjustment unit TR h pplicable cylinder MYB MYB MYB MYB MYB MYB0 MYB ES EC EY FC h.... S SD TS 7 7 TR TU W (mm) Shock absorber model RB007 RB007 RB RB RB RB RB7 Note) When the stroke adjustment unit is used, the fitting type, which can be connected with the port on the body front and the back, will be limited. Refer to page for details. D- -X

31 MY/B Series Side Support Side support MY-S x øg Side support B MY-SB C D B x ø F E E x J C D B Guide for Using Side Support Model MY-S MY-S MY-S MY-S B B B B MY-S0 B pplicable cylinder MY MYB MY MYB MY MYB MY MYB MY MYB MY0 MYB0 MY MYB B C D 8 0 E Note) set of side supports consists of a left support and a right support. F. 8. G (mm) J M x 0.7 M x 0.8 M x M8 x. M0 x. For long stroke operation, the cylinder tube may be deflected depending on its own weight and the load weight. In such a case, use a side support in the middle section. The spacing () of the support must be no more than the values shown in the graph on the right. m Guide for Using MY Side Support 00 MY (900) Guide for Using MYB Side Support 00 MYB (0) m m Weight W (kg) 0 MY0 MY MY (0) MY (00) MY (00) (0) (0) Weight W (kg) 0 MYB0 MYB MYB MYB (000) MYB(000) (00) (0) (0) Caution q If the cylinder mounting surfaces are not measured accurately, using a side support may cause poor operation. Therefore, be sure to level the cylinder tube when mounting. lso, for long stroke operation involving vibration and impact, use of a side support is recommended even if the spacing value is within the allowable limits shown in the graph. w Support brackets are not for mounting; use them solely for providing support. 0 MY(000) Support spacing (mm) Note) side support must be used to keep the spacing from exceeding the value inside the parentheses. 0 MYB (900) Support spacing (mm) Note) side support must be used to keep the spacing from exceeding the value inside the parentheses.

32 Mechanically Jointed Rodless Cylinders MY/B Series Floating Bracket Facilitates connection to other guide systems. pplication Mounting direction q (to minimize the installation height) Workpiece pplication Mounting direction w (to minimize the installation width) Workpiece Guide Guide Mounting Example K (Screw length) (Counterbore depth) Model MYJ MYJ MYJ MYJ C Q pplicable cylinder MY MY MY MY MY series Floating mechanism Bracket JJ G G D Zb x x ød P Za B F Eb Eb Detail drawing of Zb (djustable range) Ea Ea Detail drawing of Za (djustable range) MY Floating Bracket Mounting Dimensions Common JJ P D M x 0.7 M x 0.7 M x M x djustment range Ea Eb Mounting Example Model K (Screw length) (Counterbore depth) MYJ MYJ0 MYJ C P Q pplicable cylinder MY MY0 MY G MY series Floating mechanism Bracket JJ G D Zb x x ød Za B Common M8 x. M8 x. M0 x. F Eb Eb Detail drawing of Zb (djustable range) Ea Ea Detail drawing of Za (djustable range) JJ P D Ea Eb MYB MY MYB MYM MYC MY MY T MY W MYC MY /T (mm) MY djustment range MYB MYM Model MYJ MYJ MYJ MYJ pplicable cylinder MY MY MY MY B Mounting direction q C D F K Q 0 0. pplicable Model cylinder MYJ MY MYJ0 MY0 MYJ MY 9 8 B 0 8 Mounting directionq C D F K Q 8 pplicable Model cylinder MYJ MY MYJ MY MYJ MY MYJ MY Installation of olding Bolts Slider (piston yoke) B Pin Mounting direction w C D F K Q Note) Floating brackets are shipped as a set of left and right brackets. Conical spring washer Packaged parts olding bolt Tightening Torque for olding Bolts Tightening Model torque MYJ MYJ MYJ MYJ pplicable Model cylinder MYJ MY MYJ0 MY0 MYJ MY.. Model MYJ MYJ0 MYJ Unit: N m Tightening torque B Mounting directionw C D F K Q MYJ ( set) Component Parts Description Bracket Pin Conical spring washer olding bolts Qty. D- -X

33 MYB MY MYB MYM MYC MYM Series Slide bearing guide type (ir cushion) ø, ø, ø, ø MY MY T MY W MYC MY /T MY MYB MYM D- 7 -X

34 MYM Series Model Selection The following are steps for selecting the MY series which is best suited to your application. Calculation of Guide oad Factor Operating Conditions Cylinder MYM-00 verage operating speed υa 00 mm/s Mounting direction Wall mounting Cushion ir cushion (δ = /00) Mounting Direction. orizontal z. Wall y mounting mounting Page 9 x y x z MYM-00 W: Workpiece ( kg). Ceiling mounting x z y. Vertical x mounting Page z y Refer to the pages mentioned above for actual examples of calculation for each orientation. For ceiling mounting, refer to page. oad Blocking 0 Z X Workpiece Mass and Center of Gravity Workpiece no. W Mass (m) kg X-axis 0 mm Center of gravity Y-axis 0 mm Z-axis mm Y 0 Y Calculation of oad Factor for Static oad m: Mass m max (from q of graph MYM / m) =. (kg) oad factor α = m / m max = /. = 0.8 M: Moment m Z M max (from w of graph MYM / M) = (N m) M = m x g x Z = x 9.8 x x 0 - = 0.78 (N m) oad factor α = M / M max = 0.78 / = 0. M: Moment M X m M max (from e of graph MYM / M) =.7 (N m) M = m x g x X = x 9.8 x 0 x 0 - = 0. (N m) oad factor α = M / M max = 0. /.7 = 0.07 m M 8

35 Model Selection MYM Series Calculation of Guide oad Factor Calculation of oad Factor for Dynamic Moment Equivalent load FE at impact FE =.υa x δ x m x g =. x 00 x x x 9.8 = 8.8 (N) 00 ME: Moment ME max (from r of graph MYM M where.υa = mm/s) = 7. (N m) ME = x FE x Z = x 8.8 x x 0 =.0 (N m) oad factor α = ME / ME max =.0 / 7. = 0. ME: Moment ME max (from t graph of MYM/M where.υa = mm/s) =.90 (N m) ME = x FE x Y = x 8.8 x 0 x 0 = 0.7 (N m) oad factor α = ME / ME max = 0.7 /.90 = 0. Sum and Examination of Guide oad Factors Σα = α + α + α + α + α = 0.87 The above calculation is within the allowable value, and therefore the selected model can be used. Select a shock absorber separately. In an actual calculation, when the sum of guide load factors Σα in the formula above is more than, consider decreasing the speed, increasing the bore size, or changing the product series. This calculation can be easily made using the SMC Pneumatic CD System. oad Mass MYM, m oad mass (kg) q ø ø ø 0. ø Piston speed (mm/s) llowable Moment MYM, M MYM, M MYM, M Moment (N m) r ø ø ø ø Piston speed (mm/s) Moment (N m) w ø ø ø ø Piston speed (mm/s) Moment (N m) M Z ME ME FE FE e t M ø ø ø ø Piston speed (mm/s) Y 9 MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM D- -X

36 MYM Series Maximum llowable Moment / Maximum llowable oad Bore size Maximum allowable moment (Nm) Maximum allowable load (kg) Model (mm) M M M m m m MYM We recommend that the static M moment direction should be as illustrated. lso, when using the product in a wall mount application (m applied), we recommend that the mounting orientation of the adjustment side (hexagon socket head button bolt side) should be in the upper position. Maximum llowable Moment MYM, M MYM, M MYM, M Moment (N m) ø ø ø ø Recommended direction of applying M moment djustment side (exagon socket button head screw side) Select the moment from within the range of operating limits shown in the graphs. Note that the maximum allowable load value may sometimes be exceeded even within the operating limits shown in the graphs. Therefore, also check the allowable load for the selected conditions. Moment (N m) ø ø ø ø Moment (N m) ø ø ø ø Piston speed (mm/s) Piston speed (mm/s) Piston speed (mm/s) Select the load from within the range of limits shown in the graphs. Note that the maximum allowable moment value may sometimes be exceeded even within the operating limits shown in the graphs. Therefore, also check the allowable moment for the selected conditions. Maximum llowable oad MYM, m MYM, m MYM, m oad mass (kg) ø ø ø ø oad mass (kg) ø ø ø ø oad mass (kg) ø ø ø ø Piston speed (mm/s) Piston speed (mm/s) Piston speed (mm/s)

37 Model Selection MYM Series Cushion Capacity bsorption Capacity of ir Cushion and Stroke djustment Unit MYM orizontal collision: P = 0. MPa Maximum collision speed with fixed intermediate position MYM Maximum collision speed with fixed intermediate position orizontal collision: P = 0. MPa unit Collision speed (mm/s) MYM Collision speed (mm/s) ir cushion mmax oad mass (kg) Maximum collision speed with fixed intermediate position ir cushion 0 unit mmax unit mmax orizontal collision: P = 0. MPa unit unit mmax mmax mmax oad mass (kg) Collision speed (mm/s) MYM Collision speed (mm/s) ir cushion mmax ir cushion oad mass (kg) 0 Maximum collision speed with fixed intermediate position unit mmax mmax orizontal collision: P = 0. MPa unit unit mmax mmax mmax oad mass (kg) 0 00 MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM ir Cushion Stroke Bore size (mm) Cushion stroke 8 0 Unit: mm D- -X

38 MYM Series Cushion Capacity bsorption Capacity of ir Cushion and Stroke djustment Unit Calculation of bsorbed Energy for Stroke djustment Unit with Built-in Shock bsorber Unit: N m Type of collision Kinetic energy E Thrust energy E bsorbed energy E <Stroke adjustment of the adjustment bolt> oosen the lock nut for the adjustment bolt, adjust the stroke on the head cover side with a hexagon wrench, and secure with a lock nut. <Stroke adjustment of the shock absorber> oosen the fixing bolts on the shock absorber side and rotate the shock absorber for stroke adjustment. Tighten the fixing bolts to secure the shock absorber. Use caution not to overtighten the fixing bolts. (Refer to Stroke djustment Unit Tightening Torque for Fixing Bolts. ) Stroke djustment Unit Tightening Torque for Fixing Bolts Unit: N m Bore size (mm) Unit Tightening torque Shock bsorber Tightening Torque for Fixing Bolts Unit: N m Bore size (mm) Unit Tightening torque Caution. Use caution not to have your hands caught in the unit. When using a cylinder with stroke adjustment unit, the space between the slide table (slider) and the stroke adjustment unit is very narrow. Care should be taken to avoid the danger of hands being caught in this small space. Install a protective cover to prevent the risk of accidents to the human body. orizontal υ m s Vertical (Downward) υ m s Vertical (Upward) m υ Symbols F s F s + m g s F s - m g s E + E s υ m Stroke djustment Stroke djustment Unit Fine Stroke djustment Range Bore size (mm) Note) The maximum operating speed will differ when the stroke adjustment unit is used outside the maximum fine stroke adjustment range (with reference to the fixed stroke end), such as at a fixed intermediate position (X, X7). (Refer to the graph on page.) Caution djustment bolt lock nut Unit: mm Fine stroke adjustment range 0 to -0 0 to - 0 to - 0 to - υ: Speed of impacting object (m/s) m: Weight of impacting object (kg) F : Cylinder thrust (N) g : Gravitational acceleration (9.8 m/s ) s : Shock absorber stroke (m) Note) The speed of the impacting object is measured at the time of collision with the shock absorber.. The stroke adjustment unit may interfere with the mounting bolt when mounting the cylinder on the equipment. oosen the unit fixing bolt and dislocate the stroke adjustment unit before mounting the cylinder. fter fixing the cylinder, move the stroke adjustment unit back to the desired location and tighten the unit fixing bolt. Use caution not to overtighten the fixing bolts. (Refer to Stroke djustment Unit Tightening Torque for Fixing Bolts.). When using the adjust bolt to perform stroke adjustment, fix the adjust bolt so that it is on the same side as the shock absorber. Fix the adjust bolt on the same side as the shock absorber that was used for stroke adjustment. If the shock absorber s stopper side and the front end of the adjust bolt are not on the same side, the slide table stopping position becomes unstable, and durability may drop.. Securing the unit body bsorber fixing bolt Stroke adjustment unit fixing bolt Shock absorber Tighten the four unit fixing bolts equally to secure the unit body.. Do not fix and use the stroke adjustment unit at an intermediate position. When the stroke adjustment unit is fixed in an intermediate position, slippage can occur depending on the amount of energy released at the time of an impact. In that case, use a short spacer or a long spacer. For other lengths, please consult with SMC. (Refer to Stroke djustment Unit Tightening Torque for Fixing Bolts. ) If the stroke adjustment unit is fixed at an intermediate position, the energy absorption capacity may be different. For this reason, refer to the maximum absorbed energy listed above, and use the adjustment unit within the allowable absorption capacity.

39 Mechanically Jointed Rodless Cylinder Slide bearing guide type MYM Series ø, ø, ø, ø ow to Order Slide bearing guide type MY M 00 M9BW Bore size (mm),, Slide bearing guide type Cylinder bore size mm mm mm mm Port thread type Symbol Type Bore size Nil M ø Rc TN NPT ø, ø, ø TF G Cylinder stroke (mm) Standard stroke (mm) Maximum manufacturable stroke (mm) 00, 0, 00, 0, 00, , 0, 900, 000, , 00, 0, 00 Strokes are manufacturable in mm increments, up to the maximum stroke. owever, when the stroke is 9 mm or less, the air cushion capability lowers and multiple auto switches cannot be mounted. Pay special attention to this point. lso when exceeding a 00 mm stroke, specify -XB at the end of the model number. For details, refer to the Made to Order Specifications. uto switch Nil Without auto switch (Built-in magnet) Refer to the table below for auto switch model numbers. Stroke adjustment unit symbol Refer to Stroke adjustment unit on page. Made to Order Refer to page for details. Number of auto switches Nil pcs. S pc. n n pcs. pplicable uto Switches/Refer to pages 7 to 70 for further information on auto switches. Type Solid state auto switch Reed auto switch Special function Diagnostic indication (-color indicator) Water resistant (-color indicator) Electrical entry Indicator light Wiring (Output) ead wire length symbols: 0. m Nil (Example) M9NW m M (Example) M9NWM m (Example) M9NW m Z (Example) M9NWZ oad voltage DC C uto switch model Perpendicular -wire (NPN) V, V -wire (PNP) -wire V -wire (NPN) V, V Grommet Yes -wire (PNP) V -wire V -wire (NPN) V, V -wire (PNP) -wire V -wire Yes (NPN equiv.) V 9V Grommet 00 V 9V -wire V V No 00 V or less 90V In-line M9NV M9N M9PV M9P M9BV M9B M9NWV M9NW M9PWV M9PW M9BWV M9BW M9NV M9N M9PV M9P M9BV M9B There are other applicable auto switches than listed above. For details, refer to page. Refer to pages 8 to 9 for the details of auto switches with a pre-wired connector. uto switches are shipped together (not assembled). (Refer to page for the details of auto switch mounting.) Water resistant type auto switches can be mounted on the above models, but in such case SMC cannot guarantee water resistance. Consult with SMC regarding water resistant types with the above model numbers. m type lead wire is only applicable to D-9. ead wire length (m) 0. (Nil) (M) () (Z) Pre-wired connector Solid state auto switches marked with are produced upon receipt of order. Separate switch spacers (BMY-0) are required for retrofitting of auto switches. pplicable load IC circuit IC circuit IC circuit IC circuit IC circuit Relay, PC Relay, PC

40 Mechanically Jointed Rodless Cylinders MYM Series Specifications Rubber bumper Symbol ir cushion Bore size (mm) ir Double acting 0. to 0.8 MPa 0. to 0.7 MPa.0 MPa to 0 C ir cushion Not required (Non-lube) Fluid ction Operating pressure range Proof pressure mbient and fluid temperature Cushion ubrication Stroke length tolerance Port size (Rc, NPT, G) mm or less 0, From 00 mm 0 M x 0.8 /8 / /8 Made to Order: Individual Specifications (For details, refer to page.) Symbol Specifications -X8 elical insert thread Made to Order (For details, refer to pages 70 to 89.) Symbol Specifications -XB ong stroke type Shock absorber soft type -XB RJ series type Stroke djustment Unit Specifications Bore size (mm) Unit symbol Shock absorber model Shock absorber soft type RJ series (-XB) model Stroke adjustment Without spacer range by intermediate With short spacer fixing spacer (mm) With long spacer RB0 RJ0 Stroke djustment Unit Symbol Piston Speed Bore size (mm) Without stroke adjustment unit Stroke adjustment unit ( and unit) External shock absorber to 000 mm/s to 00 mm/s to 00 mm/s When the RB series is used, operate at a piston speed that will not exceed the absorption capacity of the air cushion and stroke adjustment unit. Because of its structure, the fluctuation of this cylinder s operating speed is greater than rod type cylinders. For applications that require constant speed, select an applicable equipment for the level of demand. RB007 RB007 RB RB RB RB 0 to 0 0 to to 0 RJ007 Stroke adjustment range is applicable for one side when mounted on a cylinder. eft side stroke adjustment unit Without unit : With low load shock absorber + djustment With short spacer bolt With long spacer : With high load shock absorber + djustment With short spacer bolt With long spacer Without unit Nil S S 7S S S 7S Right side stroke adjustment unit : With low load shock absorber + djustment bolt S 7 7 With short spacer S 7 7 With long spacer S Spacers are used to fix the stroke adjustment unit at an intermediate stroke position. RJ007 RJ 0 to to to : With high load shock absorber + djustment bolt S 7 7 With short spacer S 7 7 With long spacer S RJ 0 to to to 8 RB7 0 to to 8 8 to 7 Stroke adjustment unit mounting diagram Stroke adjustment unit Intermediate fixing spacer Example of 7 attachment eft side unit ong spacer Right side unit Short spacer MYB MY MYB MYM MYC MY MY T MY W MYC MY /T MY MYB MYM Shock bsorber Specifications Type Max. energy absorption (J) Stroke absorption (mm) Max. collision speed (mm/s) Max. operating frequency (cycle/min) Spring Extended force (N) Compressed Operating temperature range ( C) RB RB RB to 0 RB RB Note) The shock absorber service life is different from that of the MYM cylinders depending on operating conditions. llowable operating cycle under the specifications set in this catalog is shown below.. million times RB08 million times RB0 to RB7 Note) Specified service life (suitable replacement period) is the value at room temperature ( to C). The period may vary depending on the temperature and other conditions. In some cases the absorber may need to be replaced before the allowable operating cycle above. D- -X