2. By adopting exclusive invariable reversing buffering technology in the industry, the pump displacement keeps unchanged during pumping and reversing and the main system unloads in low pressure, which thoroughly avoid such problems as long reversing time, great reversing impact and low service life of pump caused by frequent change of displacement during traditional reversing.
3. The use of equivalent bending moment design ensures uniform force, reliable sealing and greatly prolongs the service life of bearing ring, spectacle wear plate and cutting ring. The feature of unilateral wear makes the theoretical service life of rock valve once higher than that of S-valve.
4. The machine adopts the controller with color display, which can dynamically display and record various working parameters in real-time; main control functions are all finished directly by the controller, which reduces the use level of relay; and meanwhile with it, many intelligent control functions can be realized.
5. Piston change is easy, convenient and time-saving. Traditional piston needs to be changed by repeatedly mounting and dismounting linkage and pumping at low speed.
6. The system ensures the cleanness of hydraulic oil and thus generates higher operational reliability of hydraulic system, pump and other hydraulic elements.
