Double Acting Cylinder Pneumatic cylinders turn air pressure into linear motion. They are like automobile pistons except the piston (and connecting rod) is pushed by an influx of pressurized gas instead of a gasoline explosion. The piston must be returned to the starting position after each stroke. If a spring is used to return the piston, it is a single action cylinder. If air pressure is used to return the piston, it is a double action cylinder. Use In : Double acting cylinders are used in automobile, motorcycle, ATV and airplane landing gear suspensions because the bumps come so fast that a single acting cylinder would be impractical. Double acting cylinders are used in drilling, log splitters and earth moving equipment because the forces required make single acting cylinders impractical. Double acting cylinders are found in back hoes, elevators, trash compactors, garbage trucks, fork lifts, jacks and those machines in junk yards that compress old cars. They are also used in medical applications that power ventilators--those machines that help people breath. Double acting cylinders are finding increasing applications in the space program--they open and close the shuttle bay doors--because the high radiation levels in space make it important to replace electric motors with pneumatics and hydraulics. Radiation interferes with electronics but not with hydraulics or pneumatics. Available in SMSN , SPAC , Festo , Aeroflex , SMC. Bore(mm) : 32 , 40, 50, 63, 80, 100 Storke (mm) :25, 50, 75, 100, 125, 150, 175, 200, 250, 300, 350, 400, 450, 500 Medium : Air Poert Size : 1/8" , 1/4" , 3/8" , 1/2" We Leading in Cylinder Supplier At Makarpura GIDC We Leading in Cylinder Supplier At Savli We Leading in Cylinder Supplier At Karjan We Leading in Cylinder Supplier At Halol We Leading in Cylinder Supplier At Vidhya nagar We Leading in Cylinder Supplier At padra