Series variation Round shaped medium bore size cylinder SCM Series Series Series variation Mounting style Switch rail attached at shipment Piston rod material change Copper and PTFE free Clevis bracket Double acting single rod type Both sides rubber cushioned Both sides air cushioned Head end trunnion type Standard stroke length (mm) Clevis bracket type Bore size Head end flange type Axial foot type : Custom order, Basic type Custom stroke length(Per mm) Single acting extend type SCM-X Single acting retract type SCM-Y Double acting adjustable SCM-P stroke (Extended) Double acting adjustable SCM-R stroke (Retracted) Double acting two stage type Double acting tandem type Double acting non-rotating type Double acting direct mounting foot SCM-LD Double acting back to back type Double acting double rod type Double acting low friction type Double acting low speed type 80, 100 Double acting fine speed type SCM-F Double acting position locking type Double acting heat resistance type Round shaped cylinder Standard type Note 1: Head end trunion "TA" cannot be selected for head side position locking. Note 2: Rod end trunion "TB" cannot be selected for rod side position locking.

Variation and option selection table : Option : Available (custom order) : Available dipending on condition (consult with CKD) X : Not available Port thread Double acting basic type Single acting extend type Single acting retract type Double acting double rod type Back to back type Two stage type Tandem type Stroke adjustable type extend Stroke adjustable type retract Non-rotating type Air cushioned Heat resistance type (120 ) Low speed type Position locking type Low friction type NPT G Nylon tarpaulin with bellows Neoprene with bellows Silicone rubber with bellows Piston rod material stainless...

SCM Series Variation and option selection table Mounting C Port style thread type Stroke length Switch quantity * Indicate symbols from left to right on the left table. Bore size Model no.: Round shaped medium bore size cylinder Variation: Adjustable stroke, non-rotating type A Mounting style : Axial foot type Bore size Port thread type : Rc thread D Cushion : Both sides air cushioned Stroke length Switch model no. : Proximity T2H switch, lead wire 1 m G Switch quantity :2 : None : None JSC3 USC JSB3 LMB STG STS/L LCS LCG LCM LCT LCY STR2 UCA2 HCM HCA SRL2 SRG SRM SRT MRL2 MRG2 SM-25 CAC3 UCAC...

Pneumatic components Safety precautions Always read this section before starting use. Refer to Intro 71 for general details on the cylinder, and to 78 for details on the cylinder. Round shaped medium bore size cylinder SCM Series Design & Selection 2. Fine speed type SCM-F Either a rubber or air cushion type cushion mechanism is assembled in the cylinder. The air cushion absorbs kinetic energy the piston acquires using air compression, and prevents the piston and cover from colliding at stroke end. The cushion is not used to decelerate the piston near stroke end. The table below shows kinetic...

SCM Series Design & Selection (Cause of popping out phenomenon ) Reduce the flow rate to reach a fine speed at the exhaust side in a mater-out circuit. This results in the same pressure level on the both sides immediately after valve switched. The thrust caused by the differential of pressurized area of piston is applied to the PUSH direction and a popping-out of piston rod occurs. When the piston moves, the exhaust pressure rises, causing the piston to decelerate, after which it reaches the set pressure. (Reference of popping out occurrence) When piston rod area X air pressure > load resistance,...

SCM Series Installation & Adjustment Shifting the band position Loosen the band fixing screw, shift the switch rail and band along the cylinder tube, and tighten at the specified position. Tightening torque is 0.6 to 0.8 N·m. 1. Common CAUTION Switch rails are glued with industrial adhesive tape. If used in an atmosphere containing inorganic or organic solvents or water vapor, rails may peel off. Main inorganic and organic solvent Inorganic solvent: Sodium hydroxide, hydrochloric acid etc. Organic solvent: Toluene, ethanol, hexane, gasoline, kerosene etc. Remove all oil, water and dust from the...

SCM Series The seal washer is used as the stopper bolt seal and cannot be repeatedly adjusted. The cushion has no effect when stroke is adjusted. Strokes are adjusted for 25 mm and 50 mm. When using axial foot mounting style, the axial dimension is the standard type. 4. Fine speed type SCM-F Align the cylinder so that no horizontal load is applied. Adjust so that the cylinder does not twist in relation to the sliding guide. Variation of load or resistance may result in unstable operations. Large differential between static friction and dynamic friction of guide results in unstable operation....

SCM Series During Use & Maintenance 1. Common CAUTION When disassembling the cylinder, hold the across flats section of the head cover or rod cover with a vise, etc., and use a wrench or an adjustable spanner on the across flats section of the other cover. Loosen and remove the cover. When retightening, retighten from the position set before disassembly. Large torque is required to disassemble and assemble 80 and 100 types. Details are given in disassembly/assembly procedures, so contact with CKD sales representative. After operating locking mechanism manually, always return the manual override...

Round shaped cylinder double acting single rod type Bore size: Bore size Actuation Working fluid Max. working pressure MPa Min. working pressure MPa Withstanding pressure MPa Ambient temperature Rubber cushioned Port size Air cushioned Rubber cushioned Stroke tolerance mm Air cushioned Working piston speed mm/s Cushion Effective air cushion length mm Allowable energy absorption J Double acting Compressed air 1.0 0.05 Selection of rubber cushion and air cushion possible 8.1 8.6 8.6 13.4 13.4 15.4 Note 1: If "No cushion" is selected for the allowable absorption energy, when the air cushion symbol...