Due to the growing need for the compressed air of higher quality, the water-lubricated twin-screw compressor with water as the only liquid in the compressor has drawn much attention to produce clean air a.
[pdf] As a kind of friction clutch that uses compressed air as manipulating power source, pneumatic-tyred clutch is widely used in such equipment as oil drilling rig and workover rig, and is also an important part of the drive systems of oil drilling rig and workover rig.
[pdf] The clutch on a drill/driver is similar to the one in your car—it engages and disengages the drivetrain. This feature allows you to control the amount of torque applied to a screw or fastener, preventing overdri.
[pdf] 
