Double Disc Cutter Factory – Coal mining teeth-U76 – LYNE

Protection Cutter Bits are the auxiliary cutters. They are classified into Protective Cutter Bit for Cutter Head, Protection Cutter Bit for Cutter Holder, Protection Cutter Bit for foam filling hole , Protective Cutter Bit for injection hole and Diversion Cutter, which base on their different roles.

Copy Cutter Bit is installed on the gauge area of Cutter Head. While Shield Machine tunneling along curve or adjusting the direction, Copy Cutter Bit tries to minimize overbreak to leave the sufficient space for Shield Machine successfully turning. Copy Cutter Bit can extend out from Cutter Head or retract into Cutter Head according to the requirement of overcut. The extension length of Copy Cutter Bit is 70-150mm.

Heavy-duty Ripper is mainly used to break the lower strength and smaller-diameter cobbles and gravels;(Good cooperation with Cutter Bits is the primary consideration in the design of Pre-Cutting Bit. Pre-Cutting Bit cuts the soil mass into small pieces or loosens soil before Cutter Bits cutting in order to create good cutting condition for Cutter Bits. Pre-cutting Bit is half the cutting width of Cutter bit, so the cutting efficiency of Pre-cutting Bit is higher.Central Cutter Bit is used to cut the central soil of excavation face. The role of Central Cutter Bit is to center the excavation face and loosen the soil.( The characteristics of Central Cutter Bit are: 1. The body of Central Cutter bit is higher than other cutters, which ensures it first to cut soil. 2. Fishtail Cutter is tapered, so the soil cut by Central Cutter bit not only move along tangent direction and radial direction, but also rotate.)  Central Cutter Bit can cut the central section soil and improve the fluidity of soil, so it can greatly increase Shield Machine tunneling efficiency.

	Coal mining teeth
	Product Type	U765
	Applications	Coal mining
	Category	Mining Bits
	Summary	Coal mining teeth U765