Platform Cylinder. ø12, ø16, ø20, ø25, ø32, ø40. Series CXT 12 CXT 16 CXT 20 CXT 25 CXT 32 CXT 40

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1 Platform Cylinder Series ø, ø, ø, ø, ø, ø highly rigid and highly accurate slide table integrated with an actuator. Two styles of guide rod bearings to accommodate your application For heavy loads all bushing bearing For highly accurate and smooth operation uto switch can be mounted. shock absorber can be installed (option). Can be mounted on two sides. Mounting from the upper side Mounting from the bottom side djusting bolt with bumper is standard. Performs the function of a cushion and adjusts the stroke mm on each side, or mm for both sides. For moving and transferring workpieces. Series Variations Slide bearing M M earing type all bushing bearing L L For moving the receptacle for workpieces used in stamping or press-fitting processes. For using as a Pick & Place unit in combination with other actuators. Stroke uide of high rigidity Series Maximum M () L (all bushing bearing) load mass Table () llowable () Table () llowable () displacement static mass displacement static mass (kg) (kg) (kg) Note ) Table displacement Note ) llowable static mass Table displacement is the amount of deflection of the guide rod that occurs when a maximum load mass is placed on the maximum stroke table while the table is at the center of the stroke (the amount of looseness is not included). n allowable stationary mass is the allowable amount of stationary mass that can be applied vertically to the workpiece mounting surface of the table while the table is at the stroke end. CX CX J M M M M L L L L Standard stroke Long stroke

2 Selection Step Series Model Selection NO Setting Conditions. Mounting (Horizontal, Inclined, Vertical). Load mass (kg) 3. Operating pressure P (MPa) P 0.7 MPa 4. Speed V (mm/s) V 00 mm/s Selection of bearing type Provisional selection of cylinder bore size Confirmation of sum of load ratio to the guide unit Σαn YES Calculation of resistance force f uideline for Selection of earing Type earing type all bushing bearing Required conditions Impact load and vibration load are added. Change in load is large. Long life span is required. High accuracy (Little rattle is allowed.) Smooth operation Load mass [] Moment [mn] Σαn = + Maximum load mass [max] llowable moment [Mn] Load mass [] are as follows in compliance to the mounting way. Horizontal mounting: Inclined mounting: cosθ (θ: ngle of inclination, refer to the figure below.) Vertical mounting: 0 (None) The moment load rate must be calculated in accordance with the above formula for all types, M to M3. s for max and Mn, refer to the maximum load mass and allowable moment table in the next section. The moment for the inclined mounting must be calculated taking the moment caused by the load into consideration. Note) Make sure that the distance between the guide shaft center to the center of gravity of the load does not exceed the distance P between the guide shafts given in the table below. If the distance must be exceeded due to unavoidable circumstances, decrease the load rate that is applied to the guide as indicated below in order to determine the distance. Σαn (L/P) (Provided that L > P) β > 0. Calculation of theoretical output F Calculation of load ratio β to the theoretical output of cylinder β = f/f β 0. Confirmation of adjusting bolt capacity Refer to Theoretical Output on page. NO L P Distance between guide rods P Horizontal mounting: f = μ x Inclined mounting: f = μ x cosθ + sinθ (Refer to the figure on the right.) Vertical mounting: f = μ = 0.3 () μ = 0. (all bushing bearing) Determine the movable mass which can be operated only by adjusting bolts. θ θ YES Model selected ithout shock absorber Model selected ith shock absorber

3 Series Non-rotating ccuracy of Slide lock θp θr θy Pitching direction Rolling direction Yawing direction Maximum Load Mass and llowable Moment M L () (all bushing bearing) θp (= θy) θr θp (= θy) θr ± 0.0 ± 0.08 ± 0.07 ± 0.07 ± 0.08 ± 0.0 ± 0. ± 0. ± 0.08 ± 0.07 ± 0.07 ± 0.0 ± 0.0 ± 0.0 ± 0.04 ± 0.04 ± 0.04 ± 0.03 ± 0.0 ± 0.04 ± 0.03 ± 0.03 ± 0.03 ± 0.03 earing all bushing bearing all bushing bearing all bushing bearing all bushing bearing all bushing bearing all bushing bearing Maximum load mass max (kg) llowable moment (N m) M (= M3) M M l l dimension. 4 M l 8 3 M3 Note) For the purpose of calculating the moment, the length of the arm is the distance that is measured from the guide shaft center ( mark). Dimension l from the guide shaft center to the top surface of the table is indicated below llowable Load Only by djusting olt If only the adjusting bolt is used for stopping the load, make sure that the load mass and the speed will be below the curve in the graph on the right, taking into consideration the durability of the rubber bumper that is attached to the end of the adjusting bolt and the vibration and noise that are created when stopping (provided that the maximum load mass is not exceeded). In conditions in which the load mass and the speed will be above the curve, use a shock absorber (provided that the maximum load mass is not exceeded). Caution In the case of the ball bushing type, the service life could be drastically shortened if shocks or excessive moments are applied. Therefore, even if the conditions given above are not exceeded, the use of a shock absorber is recommended. Load mass (kg) Speed (mm/s) CX Static Movable Mass when Stopped hen Series cylinder is used for moving the workpiece receptacle, such as in a stamping or press-fitting process, a vertical load will be applied to the top surface of the stopped slide block (refer to the figure on the right). In this case, the allowable mass is greater than the maximum load mass, as given in the table on the right. Caution. Make sure that the slide block is stopped at the stroke end.. Match the center of the mass to be applied with the center of the slide block. The direction of the mass must be vertically downward in relation to the surface on which the workpiece is mounted, as shown in the figure on the right. 3. Do not apply a load that involves shocks such as those caused by pounding (particularly with the ball bushing style). 4. If this mass is applied, the deflection of the guide shaft will also have a large value. llowable Static Mass M () L (all bushing bearing) (kg) 3 CX J

4 Platform Cylinder Series ø, ø, ø, ø, ø, ø Diagnostic indication (-color indication) ater resistant (-color indication) ith diagnostic output (-color indication) Platform cylinder M L Type Special function Electrical entry rommet Connector rommet rommet Connector Diagnostic indication (-color indication) Lead wire length symbols: rommet M 0 earing type all bushing bearing pplicable uto Switch/Refer to pages 7 to 87 for further information on auto switches. Reed switch Solid state switch 4 Nil TN TF /Stroke Stroke Standard stroke Long stroke For minimum strokes for auto switch equipped style, refer to page 30. Yes Yes Yes No Yes No Port thread type M thread Rc NPT iring (Output) 3-wire (NPN) 3-wire (PNP) -wire 3-wire (NPN) 3-wire (PNP) -wire 3-wire (NPN) 3-wire (PNP) -wire 4-wire 3-wire (NPN equivalent) -wire ø to ø ø, ø V, V 4V V V, V V V, V V 4V Load voltage DC V,V V 0V V 0V V,V 0 V or less V V,V 4 V or less 0. m Nil (Example) MN m M (Example) MNM 3 m L (Example) MNL m Z (Example) MNZ None N (Example) J7CN How to Order C uto switch part no. Perpendicular ø to ø ø, ø MNV MPV MV J7C MNV MPV MV MNV MPV MV V 7 3V 0V 73C 80C 7 M In-line ø to ø ø, ø MN MP M MN MP M MN MP M F7F 7H (Nil) Number of auto switches Nil S n Lead wire length (m) (M) 3 (L) pcs. pc. n pcs. (Z) Made to Order Refer to page for details. uto switch Nil ithout auto switch (uilt-in magnet) For the applicable auto switch, refer to the table below. Option Nil djusting bolt with bumper only (Standard) ith shock absorbers (Set on the driving cylinder side only when packed.) ith shock absorber S (Set on the driving cylinder side when packed.) None (N) Pre-wired pplicable load connector IC circuit IC circuit IC circuit IC circuit IC circuit IC circuit IC circuit Relay, PLC Relay, PLC Solid state auto switches marked with are produced upon receipt of order. Since there are other applicable auto switches than listed, refer to page for details. For details about auto switches with pre-wired connector, refer to pages 784 and 78. hen /M types with ø to ø are mounted on a side other than the port side, order auto switch mounting brackets separately. Refer to page for details.

5 Platform Cylinder Series Specifications Fluid ction Proof pressure Maximum operating pressure Minimum operating pressure mbient and fluid temperature Piston speed Cushion Lubrication ir Double acting. MPa 0.7 MPa Note) 0. MPa to C (No freezing) 0 to 00 mm/s umper (oth ends/standard), Shock absorber (Option) Not required (Non-lube) Stroke adjusting range mm (Extension end, Retraction end: mm each) Note) Maximum operating pressure for this product with the bumper feature. The maximum operating pressure for the cylinder alone is MPa. Shock bsorber Specifications For detailed specifications about shock absorber, /refer to page 73 Symbol X3 X38 X777 Made to Order Specifications (For details, refer to pages 8 and 3.) Specifications Low speed cylinder ( to 0 mm/s) djustable stroke type Fluororubber seals (ctuating cylinder unit only) Model Shock absorber Max. energy absorption (J) Stroke absorption Collision speed Max. operating frequency * (cycle/min) mbient temperature Spring force (N) Extended Retracted R R Mass (g) 0 It denotes the values at the maximum energy absorption per one cycle. Therefore, the operating frequency can be increased according to the energy absorption to m/s to 80 C R R The shock absorber service life is different from that of the cylinder depending on the operating conditions. Refer to the Specific Product Precautions for the replacement period. Theoretical Output Operating Piston area direction (mm ) (N) Operating pressure (MPa) CX CX J

6 Series Mass M () ore size L (all bushing bearing) ore size Stroke Stroke (0.3).8 (0.0) (0.4).0 (0.7) 0.0 (0.3).4 (0.0).3 (0.8).7 (.0) 4. (.0) 8.30 (3.7) 0.78 (0.4).08 (0.7).00 (.0).4 (.) 4.3 (.) 7. (4.3).0 (0.3).3 (0.). (0.87) 3.03 (.) 4.8 (.) 8.8 (3.7) 0.8 (0.4).8 (0.8). (.04).7 (.8) 4.47 (.30) 7.8 (4.3).3 (0.3).4 (0.).8 (0.88) 3.34 (.4).34 (.4). (3.7) 0. (0.4).7 (0.). (.0).77 (.30) 4.7 (.34) 8. (4.3). (0.37).8 (0.3) 3. (0.0) 3. (.).70 (.7).83 (3.83) 0.8 (0.43).3 (0.).4 (.07). (.33) 4. (.38) 8.4 (4.43) 3.4 (0.) 3.8 (.8).00 (.). (3.87). (.08) 3.08 (.3).3 (.4) 8.8 (4.47) 3. (0.3) 4. (.).3 (.). (3.).7 (.) 3.4 (.37).3 (.4).3 (4.) Note ) ( ): Denotes the values of the movable parts mass. (Movable parts mass of a cylinder is included, too.) Note ) The mass indicated above does not include a shock absorber. 3. (0.4) 4.43 (.3). (.).43 (3.).8 (.) 3. (.3). (.0).44 (4.) 4.8 (0.) 4.70 (.) 7.04 (.33). (3.) 3.03 (.3) 3. (.4).8 (.4).7 (4.). (.30) 7.73 (.4).8 (4.07) 3.78 (.4).7 (.).37 (4.7) (kg).7 (.34) 8.43 (.4) 4.0 (4.) (kg) 4. (.0).73 (.70). (4.74) Copper and Fluorine-free (For CRT manufacturing process) To prevent the influence of copper ions or halogen ions during the CRT manufacturing process, copper and fluorine materials are not used in the component parts. - earing type Stroke Option uto Swith Copper and fluorine-free Specifications Fluid ction Proof pressure Maximum operating pressure Minimum operating pressure mbient and fluid temperature,,,,, ir Double acting. MPa 0.7 MPa Note) 0. MPa 0 to 00 mm/s Refer to page for the specifications above and pages 8 and for dimensions. uto switches can be mounted. Note) The maximum operating pressure for this product taking into account the cushioning ability, etc. The maximum operating pressure for the cylinder alone is MPa.

7 Platform Cylinder Series Construction!4! e r t q M @ L u y!!3!0 Component Parts No Description Material Note Slide block luminum alloy Hard anodized Plate luminum alloy Hard anodized Plate luminum alloy Hard anodized M Carbon steel Hard chromium electroplated uide rod High frequency L earing steel quenching, Hard chrome plated earing alloy, Carbon steel all bushing bearing Type C retaining ring Carbon tool steel Nickel plated dapter Carbon steel Nickel plated Connected disk Carbon steel Nickel plated Flat washer Carbon steel Zinc chromated Type C retaining ring Carbon tool steel Nickel plated Hexagon socket head cap screw Chromium molybdenum steel Nickel plated Spring washer Steel wire Nickel plated djusting bolt (ith bumper) Carbon steel, Elastomer Nickel plated Nut Carbon steel Nickel plated Replacement Parts/Seal Kit Cylinder Model Stroke Standard stroke Long stroke CDQS CQS-PS CQS-L-PS CDQS CQS-PS CQS-L-PS Seal Order the seal kit with the kit number. Since the seal kit does not include a grease pack, order it separately. rease pack part no.: R-S-0 ( g) CDQS CQS-PS CQS-L-PS Component Parts No. Description Material Note 7 8 Shock absorber Nut Hexagon socket head cap screw Cylinder tube Collar Piston Carbon steel Chromium molybdenum steel luminum alloy luminum alloy luminum alloy Option Shock absorber accessory Nickel plated Hard anodized Clear anodized Chromated Stainless steel ø to Piston rod Hard Carbon steel chromium ø, electroplated Type C retaining ring umper umper Magnet Rod seal Piston seal Carbon tool steel Polyurethane Polyurethane NR NR Phosphate coated Note) Tube gasket NR Note) The same type of the part is equipped to the head side for the long stroke type. Kit no. CDQS CQS-PS CQS-L-PS CDQ CQ-PS CQ-L-PS CDQ CQ-PS CQ-L-PS CX CX J 7

8 Series Dimensions: ø to ø S + Stroke X + Stroke 4 x øld through, counterbore ø depth C ack side 4 x J depth JK 4 x MM Depth M T P T (N) H H HP H Q ød ød P Y NN E Z P R P x M x 0.8 R U (N) L x R (Option) HT HN (Max.) Q + Stroke (N) Cylinder form ø ø Standard stroke,,, 0, C 4.. Slide 8 d all bushing E P H H. H HN HP HT J M x 0.8 M x M8 x. M8 x. JK.. L LD MM M (N) (N) M4 x M x M x M x 0 Long Stroke Stroke range 0, 7, 0 0, 7, 0 7, 0,, 0, 7, 0 7, 0,, 0, 7, 0, 0, 300 NN M8 x.0 M8 x.0 M x.0 M4 x. P 30 4 P P Q 8 0 Q 4 0 R R080 R080 R07 R4 R 7. S 3 T P dimension is the center sorted factor of the L dimension. X Y Z U X.. Y Z.. 8

9 Platform Cylinder Series Dimensions: ø, ø (N) S + Stroke X + Stroke 4 x ø8.7 through, counterbore ø4 depth 8 ack side 4 x M x. depth 4 x M8 x. Depth T P T (N) H HP H Q ød ød P Y M x. E Z P R P x P (Rc, NPT, ) R (N) L Q + Stroke (N) x R (Option) F HT HN (Max.) Long Stroke Standard stroke, 0, 7, 0, 0, 7, 0 Q 84 R S 80 d Slide all bushing 8 3 T 7 87 Stroke range, 0, 7, 0, 0, 300, 0, 7, 0, 0, 300 X E 4 X 4. Y. F 7 3 Y. 4 Z Z. 4 P 30 H 78 H. 30. HN HP 4 74 HT 33.. L 0 3 (N) 4 (N) 3 P Note) /8 /8 P P P Q P dimension is the center sorted factor of the L dimension. Note) Rc, NPT and ports can be selected. CX CX J

10 Series Minimum Stroke for Mounting of uto Switch pplication to No. uto switch of auto switches mounted D-M V V D-M V D-M VL D-M D-M D-M L pplication uto switch No. of auto switches mounted D-F7 V D-J7C D-7 D-8 D-73C D-80C D-F7 V D-F7VL D-7 H D-80H D-F7 D-J7 D-7 D-F7 D-J7 D-F7L D-F7NTL D-F7F Proper uto Switch Mounting Position (Detection at stroke end) and Its Mounting Height ø D-M D-M D-M L V D-M V D-M V D-M VL ø,, ø, Proper uto Switch Mounting Position/Standard Stroke uto switch Proper uto Switch Mounting Position/Long Stroke uto switch. 8. V V D-M /M V D-M /M V D-M /M V D-M /M V D-M L D-M VL. 0. (4) (4.) () ( ) ( 0.) ( 3) D-M L D-M VL 7 (.) 4. ( ) ( 7.) (.) ( ) ( 8)... Note ) ( ): Denotes the values of D-3. Note ) is applicable when mounting, D-M, D-M and D-M L. Note 3) djust the auto switch after confirming the operating conditions in the actual setting uto Switch Mounting Height/ Standard Stroke, Long Stroke uto switch V D-M V D-M V D-M VL 4.

11 Platform Cylinder Series uto Switch Proper Mounting Position (Detection at Stroke End) and Its Mounting Height D-7 D-80 D-73C D-80C D-7 D-7 H D-80H D-F7 D-J7 D-F7 D-J7 D-F7L D-F7F D-F7NTL D-F7 V D-J7C D-F7 V D-F7VL ø, uto Switch Proper Mounting Position/Standard Stroke uto switch D-7/7 H D-80H/73C D-80C/F7 /J7 D-73 D-F7 /J7 D-7 D-F7NTL D-80 D-F7 V/F7 V D-F7F/J7C D-F7L/F7VL uto Switch Proper Mounting Position/Long Stroke uto switch D-7/7 H D-80H/73C D-80C/F7 /J7 D-73 D-F7 /J7 D-7 D-80 D-F7 V/F7 V D-F7F/J7C D-F7L/F7VL Operating Range uto switch / V D-M /M V D-M /M V D-M L/M VL D-F7 /F7 V D-J7/J7C D-F7 /F7 V D-J7 D-F7L/F7VL D-F7NTL/F7F D-7 /80 D Note ) djust the auto switch after confirming the operating conditions in the actual setting. uto Switch Mounting Height/Standard Stroke, Long Stroke uto switch D-7 D D-7 H D-80H D-F7 D-J7 D-F7 D-J7 D-F7F D-F7L D-F7NTL. 3 D-73C D-80C D Since this is a guideline including hysteresis, not meant to be guaranteed. (ssuming approximately ±30% dispersion) There may be the case it will vary substantially depending on an ambient environment. uto switch mounting brackets Q-0 are not used for sizes over ø of D- (V)/M (V)/M (V)/M (V)L types. The above values indicate the operating range when mounted with the conventional auto switch installation groove. D-F7 V D-F7 V D-F7VL D-F7NTL 3 D-J7C CX CX J

12 Series uto Switch Mounting racket: Part No. uto switch mounting surface ø ø, ø, ø ø, ø Port side Port side Port side C C C uto switch uto switch mounting surface uto switch mounting surface, and C sides Port, and C sides Port side uto switch mounting surface, and C sides V D-M D-M V D-M D-M V D-M L D-M VL uto switch mounting bracket not required. uto switch mounting bracket not required. uto switch mounting bracket not required. qq- wq-0 kinds of auto switch mounting brackets are available as a set. q w Set screw (unused) Note ) For each cylinder series, when a compact auto switch is mounted on the three sides (, and C above) other than the port side of bore sizes ø and ø, the auto switch mounting brackets above are required. Order them separately from cylinders. Order example M-0-M Q- pcs. Q-0 pcs. Note ) hen shipping cylinders, auto switch mounting brackets and auto switches are shipped together. uto switch D-7 /80 D-73C/80C D-7 H/80H D-7 D-F7 /J7 D-F7 V Q- D-J7C D-F7 /J7 D-F7 V D-F7L/F7VL D-F7F/F7NTL Note ) hen shipping cylinders, auto switch mounting brackets and auto switches are shipped together. Other pplicable uto Switches/Refer to pages 7 to 87 for the detailed specifications of auto switches. uto switch type Model Electrical entry (Fetching direction) Features D-73 rommet (Perpendicular) D-80 ithout indicator light Reed D-73H, 7H rommet (In-line) D-80H ithout indicator light D-F7NV, F7PV, F7V D-F7NV, F7V rommet (Perpendicular) Diagnostic indication (-color indication) D-F7VL ater resistant (-color indication) Solid state D-F7, F7P, J7 Diagnostic indication D-F7, F7P, J7 (-color indication) rommet (In-line) ater resistant D-F7L (-color indication) D-F7NTL ith timer For solid state auto switches, auto switches with a pre-wired connector are also available. Refer to pages 784 and 78 for details. Normally closed (NC = b contact), solid state auto switch (D-F/FH type) are also available. For details, refer to page 74. D-7/8/F7/J7 types cannot be mounted on ø to ø. [Mounting screw set made of stainless steel] The following set of mounting screws made of stainless steel (including nuts) is available. Use it in accordance with the operating environment. (Please order the auto switch mounting bracket separately, since it is not included.) : For D-7/8/F7/J7 types D-F7L and F7VL auto switches are set on the cylinder with the stainless steel screws above when shipped. hen an auto switch is shipped independently, is attached. Note 4) Refer to page 87 for the details of. Note ) hen D-M (V)L type is mounted on a side other than ø and ø port sides, order auto switch mounting brackets Q-0S and Q-, and a stainless steel screw set. uto Switch Mounting racket Mass uto switch mounting bracket part no. Q- Q-0 Mass (g). If the cylinder is used in an application in which a magnetic material is placed in close contact around the cylinder as shown in the graph on the below (including cases in which even one of the sides is in close contact) the operation of auto switches could become unstable. Therefore, please check with SMC for this type of application. Magnetic substance (Iron plate, etc.) Magnetic substance (Iron plate, etc.)

13 Series Specific Product Precautions e sure to read before handling. Refer to front matters 4 and 43 for Safety Instructions and pages 3 to for ctuator and uto Switch Precautions. Caution Operating Precautions. Make sure not to apply to the slide block a load that exceeds the value that has been calculated in the selection procedures.. Operate the cylinder securing it by its plates, not by securing it by its slide block. 3. The clearance between the slide block and the plate at the stroke end is approximately mm to mm. It could be extremely dangerous, as there is the risk of getting your fingers caught. Install a cover as necessary. 4. t both stroke ends, adjust the damper portion at the end of the adjusting bolt so that it comes in contact with the slide block. (The clearance between the slide block and the plate must be mm or more.) If it is operated without making any contact, the piston rod of the actuating cylinder or the connecting hardware (adapter) could become damaged by an excessive impact, or the slide block could collide with the plate and create an abnormal noise.. The load mass or operating speed will be limited if only the adjusting bolt is used. Refer to the section on llowable load when only the adjusting bolt is used on page 3. Please contact SMC if this product will be used in an environment in which the piston rod and the guide shaft surfaces will be exposed to water (hot water), coolant, cutting chips, or dust. 7. The slide block bearings must be greased periodically. Inject grease (Class or lithium soap grease consistency) through the grease inlet. Note) On those with a cylinder bore of ø, apply grease to the guide shaft. 8. To operate the cylinder, use a non-lubricating air supply. Use turbine oil Class (ISO V), if lubricated. (Using machine oil or spindle oil are not allowed.) Caution Mounting. hile a high level of flatness is desired for the surface on which the cylinder is to be mounted, if sufficient flatness cannot be attained, use shims to adjust the installation of the cylinder so that the slide block can operate throughout its stroke under the minimum operating pressure.. Do not scratch or gouge the piston rod of the actuating cylinder, as this could damage the rod seal and lead to air leaks. The same applies to the guide shaft. 3. Make sure not to apply shocks or excessive moment to the slide block of the ball bushing type. 4. The port direction of the actuating cylinder can be changed in 0 increments by removing the four bolts that secure the cylinder in place. fter changing the direction, verify the operation at the minimum operating pressure.. efore the installation, thoroughly flush out the piping to prevent dust or cutting chips from entering the cylinder.. The mounting position of the adjusting bolt and the shock absorber cannot be inverted due to the constraints imposed by the locating pin for the shock absorber that is provided on the slide block. To invert the position, please contact SMC. Handling on Shock bsorber Caution. Series R (SMC made) shock absorbers can absorb a wide range of energy without requiring adjustment. (No adjustment screw is provided.). The screw at the bottom is not for adjustment. Never turn this screw as it could cause an oil leak (lowered performance). 3. Do not scratch the surface of the shock absorber rod because doing so could affect the shock absorber s durability or lead to poor retraction. For detailed specifications about the shock absorber, refer to page 73. Service Life and Replacement Period of Shock bsorber Caution.llowable operating cycle under the specifications set in this catalog is shown below.. million cycles R08 million cycles R to R7 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. CX CX J 33