Acceleration: Rate of change of velocity; the speeding up of a motion.
Back Pressure: The pressure of fluid in the exhaust lines tending to restrict the cylinder motion or force.
Blowby: A seal failure condition wherein air pressure readily blows past the piston.
Breakaway: The initial movement of the piston of a cylinder; particularly, of an unloaded cylinder from rest.
Breakout: Same as breakaway.
Burst Pressure: The pressure at which the cylinder will rupture. It is usually eight to ten times the rated pressure of the cylinder.
Cushion: Controlled deceleration at the termination of the cylinder stroke.
Cycle: A complete operation of a cylinder, including return to the initial conditions.
Deceleration: Negative acceleration; a slowing of the speed of a motion.
Double Acting: A cylinder which is driven in both the extending and retracting directions by fluid pressure.
Dynamic: In motion, changing, as in dynamic friction or dynamic conditions.
Extending: Outward stroke of a cylinder.
Friction: The resistance to motion when one object slides against or rubs against another.
Power Factor: The area of the piston of a cylinder. The power factor multiplied times the pressure applied to the cylinder yields the force the cylinder will exert at that pressure.