°ø±â¼ö¾Ð press(ÍöѨâ©äâ press; air hydraulic press)

	compressed air
	exhausting air
	oil

As air enters the booster cylinder, oil is displaced in the hydraulic cylinder above. The displaced oil enters the ram cylinder and drives the ram down. Unlike other brands, pressure is maintained throughout the entire stroke. When the valve is de-energized, the ram retracts to its home position.

Advantages:

1. fewer moving parts
2. less maintenance, less down time
3. less noise
4. full length power stroke
5. less heat
6. cost less than electric powered hydraulic presses.