Class High Pressure Square-Head Cylinders CLSS
Options, Modifications and Ordering Information Options Bore Size Selection Unlike air applications, the output force of a cylinder for hydraulic service need be only slightly greater than the required force. Hydraulic cylinder speed is dependent directly on the relationship of supply flow rate to cylinder volume. orce tables to aid in cylinder sizing are on page 65. Mountings Select the cylinder mounting which will keep the line of force as close as possible to the centerline of the piston rod and free of misalignment. This will maximize seal and bearing life. Custom Modifications Stop Tubes In long cylinders used on push applications, internal stop tubes are installed to prevent excessive bearing wear. They are located between the piston and rod end head. See page 66 for instructions. Oversize ods or long, push stroke cylinders, oversize rods may be required. See page 66 for instructions. Double od nd NOP Class cylinders when ordered as double rod end are designated by prefixing the model with the letter X. Mounting dimensions may vary from standard because two rod end heads are used. See page 56 through page 59. Cushions NOP Class cylinders are available with adjustable cushions on either or both ends, or non-cushion. The purpose of a cushion is to slow up piston speed at the end of the stroke, eliminating shock. The mass to be cushioned should be limited to one-half the cylinder force unless other provisions are made for deceleration or special cushioning. Piston od xtension and od Threading Longer than standard piston rod extensions may be required to accommodate load fastening. Depending upon the details of rod engagement to load, special threading or rod end configuration may be required. Cylinder Ports Ports are offered as NP, S O-ring or S lange Type. NP ports standard for -/" thru 8" diameter cylinder bores. To increase cylinder speed, increased fluid volume is necessary. This can be done by using enlarged or additional ports. How To Order ou can help ensure prompt processing of your order by including all of the following requested information:. Quantity required.. Specify Class.. Bore or cylinder diameter size.. Stroke length in inches. 5. Type of mounting (NOP model or NP style.) 6. Type of cushioning: NN = non-cushioned N = cushioned blind end N = cushioned rod end = cushioned both ends 7. Piston rod diameter and type of rod threading specify Type,,, 5, 6 or 7. See page 60. ODIN COD XMPL CL - x 8 - - -.75 - - OPT lso Specify:. Position of cylinder ports and cushion adjustment screw, if other than standard. Standard positions are: Cylinder ports position Ball check position Cushion adjustment position. xtreme high or low operating or ambient temperatures.. xtreme operating pressures.. Type of operating fluid if other than standard petroleum base oil. 5. ny unusual operating conditions. ny special requirements should be described IN WODS below model number. OPT: Special modification if required. od nd Thread: See chart on page 60. od Diameter: See chart at respective bore size for rod sizes available in that bore. Cushions: Two letters required in model number: NN = No cushions N = No cushion rod end, cushion blind end N = Cushion rod end, no cushion blind end = Cushioned both ends Mounting Style: Use either NOP or NP s designation. NOT: If double rod is required, add X before mounting style. (xample: X, XD, X, etc.) Stroke Bore (-/" through 0") Class Hydraulic www.nopak.com Class 9
s e Model C (NP STD. M) Z + STO P + STO U Model CC (NP STD. M6) LB + STO W () B PSSU LIMITTIONS (PULL) CL. DIMT 5 6 7 8 PSSU (PSI) 000 600 00 000 Use Model CC (below) or Model (page ) for ecommended Maximum Pressure. U-SQ. Z + STO P + STO W LB + STO (8) B Model D (NP STD. M) ZB + STO P + STO V U B +.000.00 Model DD (NP STD. M5) LB + STO W () B PSSU LIMITTIONS (PUSH) CL. DIMT 5 6 7 8 PSSU (PSI) 800 500 000 800 Use Model DD (below) or Model (page ) for ecommended Maximum Pressure. ZB + STO P + STO V U-SQ. +.000.00 B LB + STO W (8) B = See Table on page 57 for bore and rod combinations using head plates with threaded bronze glands. 0
LN MOUNT CLINDS -/" Through 8" Bore Table These dimensions are constant regardless of rod diameter or stroke. Double rod end models are designated by letter X preceding the model identification. See page 56. = Dimensions refer to bolt diameter. BO DI. B U -/ -/ /8 -/ -/ /.6 / /8-7/6 -/ 5/8 -/ -/ /.05 / / -/8 5-/8 -/ -/ 5/8 -/ -/ 5/8.55 / / -5/8 5-5/8 -/ -/ / -/ -/ /.5 / 5/8 5-7/8 7-/8 5 7/8 -/ -/ /.8 / 5/8 6-/8 7-5/8 5 6-/ 7/8 -/ -/.95 / 7/8 8-/6 9-/ 6 7-/ -/ -/ -/8 5.7 9-7/6 -/ 7 8-/ -/ -/ -/8 6.58 -/ -/8 0-5/8-5/8 8 9-/ -/8 7.50 -/ -/ -/6 Table The dimensions given on this table are affected by the piston rod diameter and the stroke. = or piston rod dimensions see page 60. BO DI. OD MM B P V W LB W ZB Z -/ -/ -/ 5 6 7 8 5/8 / -/8 -/ / 5/8 -/6-5/8 6-/8 6 -/8 -/ -/ / -7/6-5/8 -/8 6-/ 6-/8 -/8 -/ -/ / / -7/6-5/8 -/8 6-/ 6-5/8 -/8-5/8 -/ /8 -/6-5/8-5/8 6-/ 6-7/8 -/8 -/ -7/8 / / -7/6 -/ -/8 6-/ 6-/ -/8-5/8-7/8 /8 -/6 -/ -5/8 7 7 -/ -/8-7/8 / -/ -5/6 -/ -7/8 7-/ 7-/ -/8-5/8 -/ / 7/8 5-/ -5/8 7-7/8 7-7/8 -/ -/8 -/ /8 -/8 -/ 5-/ -7/8 8-/8 8-/8 -/ -5/8 -/ /8 -/ -/8 5-/ 8-/ 8-/ -/ -/8 -/ / -/ 5-/ -7/8 8-/8 8-/ -/ -5/8 -/ / -/8 -/8 5-/ 8-/ 8-5/8 -/ -/8 -/ /8 -/8-5/8 5-/ -/ 8-/ 8-7/8 -/ -5/8 / -/8 -/8 6-/ 9-/ 9-/8 -/ -/8 /8 -/8-5/8 6-/ -/ 9-/ 9-/8 -/ -/ /8 -/8-5/8 6-/ -/ 9-/ 9-/8 -/ -/ -/ /8 -/8-5/8 6-/ -/ 9-/ 9-/8 -/ -/8-5/8 / -/ -/ 7-/8 -/ 0-/ 0-5/8 -/ -/ -5/8 / -/ -/ 7-/8 -/ 0-/ 0-5/8 -/ -/ -/ -5/8 / -/ -/ 7-/8 -/ 0-/ 0-5/8 -/ -5/8 / -/ -/ 7-/8 -/ 0-/ 0-5/8 -/ -/ 5-/8 / -/ -/6 8-/ -/ -7/8 -/ -/ -/ -/ 5-/8 / -/ -/6 8-/ -/ -7/8 -/ -/ 5-/8 / -/ -/6 8-/ -/ -7/8 -/ -/ -/ 5-/ 5-/8 / -/ -/6 8-/ -/ -7/8 -/ 5 5 5-/ 5-/8 / -/ -/6 8-/ -/ -7/8 -/ -/ -/ -/ 6 / -/ 9-/ -/ -/8 -/ -/ 6 / -/ 9-/ -/ -/8 -/ -/ -/ 5-/ 6 / -/ 9-/ -/ -/8 -/ 5 5 5-/ 6 / -/ 9-/ -/ -/8 -/ 5-/ 5-/ 6-/ 6 / -/ 9-/ -/ -/8 -/ www.nopak.com Class
s e Model CC (Blind nd lange Mount) 0" Through " Diameter Bore U-SQ. Z + STO P + STO W LB + STO (8) B Model C (Blind Head Square Mount) " Through 0" Diameter Bore X + STO P + STO U-SQ. (8) B W LB + STO Model DD (od nd lange Mount) 0" Through " Diameter Bore ZB + STO P + STO V U-SQ. +.000.00 B LB + STO W (8) B Model D (od Head Square Mount) " Through 0" Diameter Bore ZB + STO P + STO U-SQ. M (8) B LB + STO VB W
lange and Square-Head Mount Cylinders 0" Through 0" Bore Table These dimensions are constant regardless of rod diameter or stroke. Double rod end models are designated by letter X preceding the model identification. See page 56. = Dimensions refer to bolt diameter. BO DI. B U 0-5/8 -/6 -/6 -/6 -/8 9.6 -/ 5-7/8 9-7/8-5/6-7/6-7/6 -/8.5 -/ 8-/ 7-/ -7/8-7/8-7/6. -/ -/ 5 6 9-/ 5-7/8 5-7/8-7/6 5.0 -/ -7/8 8-/8 8 6-7/8 6-7/8-7/6 6.88 -/ 6-/ 0-5/8 7-7/8 7-7/8-7/6 8.7 6 9 -/ Table The dimensions given on this table are affected by the piston rod diameter and the stroke. = or piston rod dimensions see page 60. BO DI. OD MM B P V W LB M VB W X ZB Z 0 6 8 -/ -/ 5-/ 8 / -/ 5 -/8 7-/ -5/6 5-/6 6-/6 6-/ 5 5 5-/ 8 / -/ 5-/ -/8 8-/8 -/6 5-5/6 6-7/6 7 5-/ 5-/ 6-/ 8 / -/ 5-/ -/8 9 -/6 5-5/6 6-7/6 7 7 7 0-/ 8 /6 -/ 5-/ -/8 0-/ -/8 -/6 5-5/6 6-7/6 7 5-/ 5-/ 6-/ 9-5/8 / -/ 5-5/8 -/ 9 -/6 7-/6 8-/6 9-5/8 7 7 0-/ 9-5/8 7/6 -/ 5-7/8 -/ 0-/ -/8-7/6 7-5/6 9-/6 9-7/8 8 8 -/ 9-5/8 7/6 -/ 5-7/8 -/ -/ -/8-7/6 7-5/6 9-/6 9-7/8 7 7 9-7/8 6-/8 5-5/8 0-/ -/8 -/ 9-/8 0-/ -/8 8 8 9-7/8 6-/8 5-5/8 -/ -/8 -/ 9-/8 0-/ -/8 0 0 9-7/8 6-/8 5-5/8 -/ -/ 9-/8 0-/ -/8 8 8 -/8 7-/8 8-/8 -/ -/8 -/ -9/6-7/8 9 9 -/8 7-/8 8-/8 -/ -/ -/ -9/6-7/8 0 0 -/8 7-/8 8-/8 -/ -/ -9/6-7/8 9 9 -/8 8-5/8 -/8 -/ -/ -/ 5-/8 6-/6 8-/8 0 0 -/8 8-5/8 -/8 -/ -/ 5-/8 6-/6 8-/8 0 0 0 -/8 9-5/8-5/8 -/ -/ 8-/8 9-9/6 -/8 www.nopak.com Class