Contents 1. Safety Instructions 2. Product specifications 1) Specifications 2) Max. stroke 3) Max. usable stroke by the side load given to the cylinder 4) The relation between cylinder size and max. stroke by the mounting style 5) Theoretical output P.10 6) Kinetic energy absorbed by cushion mechanism P.10...
Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC) , and other safety regulations.
Page 4
Safety Instructions Caution The product is provided for use in manufacturing industries. The product herein described is basically provided for peaceful use in manufacturing industries. If considering using the product in other industries, consult SMC beforehand and exchange specifications or a contract if necessary. If anything is unclear, contact your nearest sales branch.
2) Max. stroke Table 1. Maximum stroke (mm) Bracket Basic , Foot Front flange , Head side flange, Single clevis , Double clevis Bore size Center trunnion Ø160 1600 or less Ø200 2000 or less Ø250 2400 or less Ø320 2400 or less Caution Cylinder should be operated within the max.
Page 7
3) Max. usable stroke by the lateral load given to the cylinder The area within the solid line shows the relationship between the specified length stroke cylinder and allowable lateral load. The dotted line in the graph shows the case beyond the long stroke limit. i) Judging external lateral load.
Page 8
ⅱ Judging lateral load of dead weight In case of rotating type cylinder, lateral road applies to the piston rod because of dead weight of the cylinder. It needs to be checked, if the lateral load is within the range of safety. How to judge Use graph 2 or 3, either of the one applicable to the mounting bracket and bore size of the cylinder, which are used.
φ160 to φ320 φ160 φ200 to φ320 4)The relation between cylinder size and max. stroke by the mounting style Table 2 shows max. usable stroke found by calculation on the assumption that the force generated by cylinder itself acts on piston rod or piston rod and tube as buckling force.
Page 10
Table 2. Usable stroke by buckling strength Usable stroke by Mounting style buckling strength (cm) Pressure Symbol and sketch of (MPa) Ø160 Ø200 Ø250 Ø320 Symbol bracket Head Rod side Foot: side Frange flange ・ Center Clevis trunnion ・ C・D Head Rod side Foot:...
Warning A deceleration circuit or shock absorber may be required. When a driven object is operated at high speed or the load is heavy, a cylinder’s cushion will not be sufficient to absorb the shock. Install a deceleration circuit to reduce the speed before cushioning, or install an external shock absorber to relieve the shock.
3. Mounting・Operation 1) Operating air Compressed air supplied to the cylinder should be filtered using a SMC filter such as series AF and regulated to the specified set pressure using a regulator such as series AR. Warning Use clean air. If compressed air includes chemicals, synthetic oils containing organic solvents, salt or corrosive gases, etc., it can cause damage or malfunction.
Page 14
3. Securely tighten all stationary parts and connected parts so that they will not become loose. When a cylinder operates with high frequency or a cylinder is installed where there is a lot of vibration, ensure that all parts remain secure. 4....
Caution 1. Operate within the limits of the maximum usable stroke. Refer to the selection procedures for the air cylinder to be used for the maximum usable stroke. 2. Operate the piston within a range such that collision damage will not occur at the end of the stroke.
6. Prevent foreign matter such as cutting chips from entering the cylinder through its supply port. Cutting chips from mounting hole drilling may go into the supply port of a cylinder placed underneath when the cylinder is installed in the job site. 7....
5) Piping Figure 1 is a basic circuit when operating a cylinder with air filter, regulator, solenoid valve and speed controller. Figure 1 Caution 1. Precaution before piping Before piping is connected, it should be thoroughly blown out with air (flushing) or washed to remove cutting chips, cutting oil and other debris from inside the pipe.
3. Screwing of fitting When screwing the fitting into the port, tighten by the following appropriate torque. Table 5 Tighten torque of piping Lightening torque Port size G3/4 28~30 36~38 6) Cushion Warning 1. A deceleration circuit or shock absorber, etc., may be required. When a driven object is operated at high speeds or the load is heavy, a cylinder’s cushion will not be sufficient to absorb the shock.
Caution 1. Readjust with the cushion needle. The cushion has been adjusted at the time of shipment. However, before operating the actuator, readjust the cushion needle that is provided on the cover, according to the size of the load and the operating speed. Turn the cushion needle clockwise to restrict the flow, which increases the cushioning effect.
8) Direction control When changing the operating direction of cylinder, choose the most suitable solenoid valve among SMC’s solenoid valve variation. Warning 1. Design circuitry to prevent sudden lurching of driven objects. When a cylinder is driven by an exhaust center type directional control valve or when starting up after residual pressure is exhausted from the circuit, etc., the piston and its driven object will lurch at high speed if pressure is applied to one side of the cylinder because of the absence of...
4. Maintenance 1) Inspection Daily inspection 1. Check the cylinder for smooth operation. 2. Check the cylinder for change of piston speed and cycle time. 3. Check the cylinder for abnormal stroke Regular inspection 1. Check the cylinder mounting bolt and nut for loose. 2.
2) Overhaul When abnormality is found by regular inspection, following portions should be inspected and take corrective action. However, seal kits should be replaced. Table 7. Portion to be inspected, abnormality and corrective action Portion to be Abnormality Corrective action inspected No problem with operation.
3) Disassembly 1. Disassembly should be done in a wide space containing little dust. 2. After removing the cylinder, be sure to protect the end of piping port and rubber hose on the machine side with clean waste to prevent dust from entering.
4) Assembly 1. Before assembling cylinder, be sure to clean each part to remove dust. 2. Before assembling, apply rod, bushing, tube and seal with enough grease. 3. For rusty part, remove the rust completely. 4. Assembly should be done in a clean place with care to prevent foreign matters from entering.
5) Expendable supplies 1.Part No. and seal kits are as follows. CS95- Tube bore size Table 9. Seal kits Name ø160 ø200 ø250 ø320 Rod seal Piston seal Cylinder tube gasket Cushion seal Scraper Grease pack (10g) Grease pack (20g) Seal kits or individual seal unit supplied from SMC is not packed in sealed up condition.
6) Replacement procedure of seal 1.Dismantling of seal Please refer to “3) Disassembly” for dismantling of rod seal, cushion seal and tube gasket. Since piston seal has a deep groove for sealing, use your hand (not a screw driver) and push from one side of seal and pull it out when it lifts off. 2.
7) Inspection 1. Follow the procedure of the table 11 for inspection after assembly. Table 11. Inspection items Items to be Criteria and test method Criteria Remarks inspected Measure dimensions of main As per drawing, catalog Dimension parts and specifications. 1.Finish of each part should be No defect shall be good.
5. Troubleshooting Table 12. Troubleshooting Failure Main cause Measure 1. Operation ●Disassemble and apply applicable grease is not 1. Improper lubrication (lithiumsoap group grease JIS #2 ) smooth. ●Rod deformation is caused by offset load, side load, over load, abnormal displacement of mounting 2.
Page 29
Failure Main cause Measure 4. Piston 1. Directional control ●Use larger valve. operates valve size of too slow. too small. ● Use appropriate size valve and other equipment. 2. Resistance of the Pay extreme attention to the size of piping material equipment used for and fitting.
Page 30
Failure Main cause Measure ● Operation at high speed may deform or damage Deformation 1. Speed is too fast. the piston rod due to impact force. Operate the cylinder within the high speed limit range. breakage of ● Generation of inpulsive sound at the stroke end 2.
6. Construction Figure-4 ø160 to ø250 Figure-5 ø320 - 30 -...
Page 32
Table. 13 Parts list Name Note Rod cover Head cover Cylinder tube Piston rod Piston Piston spacer φ320 Cushion ring A Cushion ring B Bushing Cushion valve Snap ring φ160~φ250 Tie rod Tie rod nut Wear ring Cushion seal Rod seal Piston seal Cushion valve seal Cylinder tube gasket...
Need help?
Do you have a question about the C95S 160 Series and is the answer not in the manual?
Questions and answers