HYDRO-PNEUMATIC PRESS

We are proceeding with compressed air type… Only!
Our cylinder is a compressed air cylinder with closed hydraulic circuits, which allows attaining the requested loads with a stroke which is triggered when the piston gets a resistance. The action is very simple and similar to pneumatic double effect cylinders. This technology thus
combines the advantages of both pneumatic and
hydraulic systems, without any adverse effects (no noisy and dirty hydraulic motors, low air consumption...).
• Rapidity • Power • Quality
• Economy • Quiet
• No maintenance
The operating principle of EMG hydro-pneumatic cylinders is to divide the entire stroke into 3 parts: fast approach,
working stroke and return stroke.
Fast approach:
The control valve injects compressed air into the piston chamber and actuates the working piston. The descent of the piston is quick but powerless: it is fast approach.
Working stroke:
When the working piston reaches the material, the control valve is reversed and triggers the 3/2 distributor which injects compressed air in the second piston chamber. The plunging shaft compresses oil and increases power.
Return stroke:
The control valve returns to its initial position. The air is evacuated by 3/2 distributor. The working pistons and traverse piston return to top speed in their initial position.
A very wide range of machines combining:
• 60+ different cylinders
• With 3 different frames