Application of screw hydraulic cartridge valves in drill rig for coal mines

The technical characteristics of screw hydraulic cartridge valve and its application in underground drill rig are introduced, the coal mine drilling equipment can realize the complex hydraulic control system, simplifying the piping layout and overall arrangement by applying the screw hydraulic cartridge valves. The specific application on coal mine drill rig is showed through several typical examples, which provides the practicability and good application prospect in the hydraulic system.