Coalfield mining sector

During coal mining, the cutting picks of shearer machines and roadheaders are subjected to prolonged high‑impact loads, severe wear, and the complex structural characteristics of coal seams. Consequently, pick wear and frequent replacement have become major bottlenecks that limit both unit production and advance rates on fully mechanized longwall faces. In response to the demanding operating conditions in coalfield mining, Henan Lingchuang has developed specialized diamond‑polycrystalline diamond compact (PDC) cutters for underground use.

　　During coal mining, the cutting picks of shearer machines and roadheaders are subjected to prolonged exposure to high‑impact loads, severe abrasive wear, and complex coal seam structures. The resulting pick attrition and frequent replacement represent major bottlenecks that constrain both production rates and advance efficiency in fully mechanized longwall faces. In response to the demanding conditions of coalfield operations, Henan Lingchuang has developed specialized diamond‑polycrystalline‑diamond (PDC) inserts for mining applications. These products excel across three key performance metrics—wear resistance, impact toughness, and high‑temperature stability—outperforming industry standards. They effectively withstand the intense abrasion caused by hard abrasive particles such as quartz sandstone interlayers and sulfide concretions, significantly extending the service life of picks and drill bits under longwall and tunneling conditions. Moreover, with dimensional accuracy improved by up to 25%, these inserts are better matched to the tooth seats of high‑end shearer drums, reducing the risk of tooth breakage and minimizing the frequency of on‑site tool changes. From thin coal seams to extra‑thick ones, and from semi‑coal–rock roadways to all‑rock headings, Henan Lingchuang leverages the robust performance of its ultra‑hard composite materials to help coal enterprises achieve high productivity, operational efficiency, and safe, continuous mining.

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Cutting insert for cutting tools

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Henan Lingxin New Materials Technology Co., Ltd.

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+86-373-8657779

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hnlcxcl@diamondhnlc.com

About Lingchuang

Henan Lingchuang Company is a high-tech enterprise dedicated to the research, development, production, and sales of superhard composite materials and related products.