The rotary excavator is an integrated drill that can be used for dry digging with a short auger bit or wet digging with a rotary bit and a mud arm. Rotary excavator can be used with hammer drilling hard ground after digging operations. Reaming can be performed at the bottom of the hole with an extended-head drill. Rotary excavator adopts multi-layer telescopic drill pipe, less drilling auxiliary time, low labor intensity, no need for mud circulation slag discharge, cost saving, no pollution, especially suitable for urban construction of the foundation construction. Rotary excavator is mainly suitable for the construction of sandy soil, clay soil, silt soil and other soil layers, in the cast-in-place pile, continuous wall, foundation reinforcement and other foundation construction has been widely used. Rotary excavator cutter is used in all kinds of pile machinery rotary digging drill, rotary digging tooth is a construction machine in the construction of the foundation engineering. Shearer coal cutting gear model: U62, U76, U765, U82, U84, U85, U92, U94, U95, U119, U138, U170 ~ Roadheader pick model: U47, U75, U135, S100, S120, S135, S150, S160, S170, S200, S260, S300, s318H~ Model of roadheader pick for rotary drilling rig: C21, C23, C31, C34, C35, 3050, 3060, 3050-19, 3050-22, rz29, rz31, rz40, rz47, bz47-17, bz47-19, bz47-22, rz223059, rz60, rz65, rz70, rz72, rz80~ other baoe bucket teeth bfz80, bfz80t, hq43h, hq30, hq10, hq85/2 hqhr73, 5030, rz47k19, etc.excavator pick, rz47k22 rotary excavator pick, c31hd rotary excavator pick, c21hd rotary excavator pick, Rz47k22 rotary excavator pick. Comprehensive tunneling machine cutter tooth type: EBZ120, EBZ131, EBZ135, EBZ150, EBH150, EBZ160, BZ160, EBZ200MJ, EBZ200M/A, EBH200, EBZ220, EBZ230, EEBZ260, EBZ300, EBH350