Zhuzhou Old Craftsman (ZZ Craftsman / ZZ Old Craftsman) Precision Alloy Co., Ltd. produces vacuum-brazed tungsten carbide (cemented carbide) chute liners and wear plates specifically for mineral processing, mining, and bulk material handling equipment.
These are high-wear-resistance liners designed for transfer chutes, hoppers, feed chutes, conveyor systems, HPGR (High Pressure Grinding Rolls) components (cheek plates, flanges, edge blocks, feed chutes), crushers, and similar high-abrasion applications involving iron ore, copper ore, coal, and other abrasive minerals. Old Craftsman Carbide Chute Liner provides a high-performance wear protection solution for demanding mineral processing applications.

Why Carbide Chute Liners Are Important
During material transfer, mineral particles can slide, fall, and impact the chute surface at high speed. Iron ore, copper ore, coal, gravel, and other abrasive materials can cause severe sliding abrasion, impact wear, and erosion. Tungsten carbide offers excellent hardness and wear resistance, helping protect the underlying steel structure and extend the service life of the chute.
Compared with conventional steel, rubber, or ceramic solutions, carbide liners are particularly suitable for areas where both abrasion and impact resistance are required. Their hard carbide surface reduces material loss and helps maintain a stable chute profile during long-term operation.
Vacuum Brazed Carbide for Strong Protection
Old Craftsman uses vacuum brazing technology to bond tungsten carbide components securely to steel backing plates. This process provides high brazing strength while minimizing thermal deformation during manufacturing. The carbide thickness, backing plate dimensions, grade, and liner geometry can be customized according to the actual working conditions.
For high-impact areas, thicker carbide or specially selected carbide grades can be used, while thinner configurations may be suitable for zones dominated by sliding abrasion. This application-based design helps customers balance wear performance, weight, and overall cost.

Applications in Mineral Processing
Old Craftsman Carbide Chute Liners can be used in transfer chutes, crusher discharge chutes, conveyor loading points, hoppers, deflector chutes, and other bulk material handling equipment. They are suitable for demanding applications involving iron ore, coal, copper ore, lithium, basalt, and other abrasive materials.
By protecting critical wear areas, carbide chute liners can reduce liner replacement frequency, maintenance requirements, and unplanned shutdowns. Better wear protection can also help maintain smooth material flow and reduce material buildup inside the chute.
Customized Wear Solutions from Old Craftsman
Every mineral processing operation has different material characteristics, impact conditions, chute designs, and wear patterns. Old Craftsman can recommend suitable carbide grades, thicknesses, backing plates, and brazing solutions according to the customer’s application. Sample testing and customized designs can also be supported before bulk production.
For mineral processing plants facing severe chute wear, Old Craftsman Carbide Chute Liner offers a durable and customizable solution designed to extend equipment life, reduce maintenance costs, and improve the reliability of material handling systems.

“Zhuzhou OC Precision Alloy Co., Ltd. could make tungsten carbide wear parts and make your equipment use life is tens of times longer than before! We specialize in providing customized carbide wear products solutions to meet the demanding requirements of industries such as aerospace, automotive, mining, and precision machining.”
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