The most ideal locking system of the roll which is the best substitute for pneumatic and mechanical shafts which exercises pressure on the amount of produced torques.

This model is capable of being activated at two directions which exercises pressure over the amount of produced torque. Other sizes are 3, 4, 5 and 6 and are produced from steel and aluminum. Easy servicing and protecting and the high capacity of the cargo with high rate of torque are among the privileges of the bank.