U84 Z19 Coal Picks Coal Mining picks

The U84 Z19 coal mining tools coal mining bits is an advanced cutting tool engineered for maximum efficiency and durability in demanding mining operations. Featuring a proprietary tapered U84 shank with dual-stage retention and vibration-damping grooves, it ensures secure mounting and reduces high-frequency vibrations by 40% compared to standard designs. The miner bit 19mm tungsten carbide tip (Z19) utilizes ultra-fine grain carbide (ISO K10-K20) with a cobalt-nickel binder matrix, delivering exceptional hardness (89-92 HRA) and fracture toughness (12-14 MPa·m¹/²). The pick body is constructed from vacuum arc-remelted 4340M alloy steel, undergoing deep cryogenic treatment and ion nitriding to achieve optimal core toughness (42-44 HRC) and surface hardness (48-50 HRC). In field applications, the coal mining picks U84 Z19 demonstrates superior performance, achieving 18-22% higher cutting energy efficiency than comparable picks while maintaining consistent power output. With a wear rate…