Views: 0 Author: Site Editor Publish Time: 2026-08-28 Origin: Site
In modern mechanized coal mining, continuous shearers and roadheaders operate under severe conditions. While tungsten carbide tips are designed for extreme hardness, premature tool failure rarely begins at the carbide tip itself—it begins on the steel tool body directly beneath it.
When cutting through abrasive coal seams, sandstone interlayers, and high-silica rock, traditional conical picks suffer from severe abrasive body wear, thermal cracking, and subsequent carbide loss.
Under continuous high-friction mining:
1. Abrasive Matrix Washout: High-velocity coal fines and rock dust act like a liquid sandblaster, rapidly eroding the softer steel body surrounding the carbide insert.
2. Carbide Tip Drop-Off: Once the supporting steel matrix erodes ("washout"), the exposed tungsten carbide tip loses mechanical support, leading to premature fracture or complete detachment.
3. Frequent Unplanned Downtime: Changing out failed cutting teeth halts the shearer drum, directly reducing daily tonnage output and escalating labor risks underground.
To eliminate the steel washout bottleneck, advanced additive laser manufacturing introduces 3D Laser Ceramic Printing (Laser Cladding with Metal-Matrix Composites).
Unlike standard PTA (Plasma Transferred Arc) welding or thermal spray overlays, 3D laser ceramic cladding deposits a specialized metal-ceramic composite directly onto the high-wear zones of the pick body with pinpoint thermal control.
● Microscopic Ceramic Reinforcement
● True Metallurgical Bond
● Minimal Heat-Affected Zone (HAZ)
Whether operating continuous miners, longwall shearers, or tunneling roadheaders, our premium conical picks with 3D Laser Ceramic Printed Wear Layers are engineered for seamless compatibility with major international tooling systems.
Ideal Applications:
● Hard coal seams with pyritic inclusions and sandstone roof/floor intrusion.
● Underground roadway drivage and tunneling through high-abrasion strata.
● Longwall operations demanding reduced maintenance cycles and lower total cost of ownership (TCO).
Stop replacing picks that still have half their carbide left. By shielding the tool body with advanced 3D laser ceramic printing, you protect your investment, protect your drums, and keep the shearer running where it belongs: cutting coal.
● Looking to reduce pick consumption in abrasive seams? [Contact Our Engineering Team]
