The Pneumatic Cylinders at each draft gate are re-buildable 100mm stroke, double acting cylinders which feature two flow control valves (to increase or decrease speed settings) and two pilot check valves for the cylinder’s protection, i.e. locking the air in the cylinder or simply providing a locking mechanism for the cylinder. The gates move only in the one direct (inwards for drafting) and are controlled by one touch open and close on the transmitter.