JULY brand : JLCA model  1-30 tons pressure Air  over oil power cylinders

 combines the benefits of hydraulic and pneumatic technologies into a hybrid 

actuator that saved money and boosted productivity in a coil prepress operation. 

Hydro-pneumatic cylinder is designed in the same way as a double-acting 

pneumatic cylinder and is also controlled in the same manner. It is equipped with 

a pneumohydraulic pressure booster which generates a power stroke when 

necessary depending on the counterforce. The power cylinder can be operated 

directly from the compressed air network by means of a pneumatic valve.