hydraulic system, oil pump for Germany rexroth products.The main oil cylinder and the swinging cylinder respectively driven by two pump, swinging cylinder and energetic movement.Hydraulic control reversing, make more reliable to send hydraulic system, stable.Pumping system: hopper maximum capacity can reach 800 l, wall using arc design, no product material blind Angle.High wear-resisting eye plate, cutting ring, fully reduce the user cost."S" shape tube valve, height difference is small, the concrete flow more smoothly.