ZLBJ Series central stepping chip removal system is especially suitable for the transportation of heavy-duty machine tool production line or automatic machine tool production line. When working, the hydraulic cylinder drives the push chip rod to make reciprocating movement, pushing the chip step by step, and the chip moves forward in the groove body to complete the transportation. Stepping chip removal device can be installed in the ditch or on the ground, a single 20-300 meters can be made of conveyor lines, especially suitable for bearing, roller, train hub, rotary support and other special materials chip centralized transportation.