Air Over Oil Reservoir

Flow controls in the lines to the cylinder from the oil tanks not shown on drawing will meter the oil as it exits each cylinder port.

Air over oil reservoir.

Rapid extend stroke to approach the work. Air over oil reservoirs wall mount. The air from the valve is used to pressurize and drive the oil from each tank into the cylinder. A flow control valve in the oil line controls the cylinder advance speed.

The cylinder s extend speed is very slow and controllable. Figure 3 1 shows a single tank air over oil system with an air valve piped to an air over oil tank to power the rod end with its other port connected directly to the cylinder cap end. The highest possible oil pressure available simply equals the air pressure supplied. Ldi corporate click for map.

This lightweight compact unit is easily installed on any existing or new application. The air over oil system uses compressed air introduced into the air oil tanks via a 5 2 air valve. Several cylinder suppliers offer air oil tanks that consist of a cylinder tube with two cylinder end caps held on the tube with tie rods. Air over oil tanks do not intensify the oil pressure regardless of the tank s diameter or length.

Automatic switch to controlled rate when resistance is met and pressure builds up to the point where a fabco air rv sequence valve actuates the 2 way shut off valve forcing fluidflow through the speed controlling needle valve. Single air oil tank used for 2 speed work stroke with shock control. Years of worry free inexpensive operation are virtually guaranteed because there are no moving parts. Try a duramaster air over hydraulic tank today and see the difference.

The sequence is as follows. Precision machining assembly.