About Us

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Business Introduction

Luoyang Jinda Machinery Equipment Co., Ltd. is a company specializing in the research and production of metal wear-resistant materials. Established in 2004, the company collaborates with internationally renowned university wear-resistant material research centers, as well as well-known domestic mining equipment companies and material research institutes, to develop wear-resistant alloy parts. Their main products include liners for mining ball mills, semi-autogenous mills, autogenous mills, and cement mills.

The company is located in Chaoyang Town, Mengjin District, Luoyang City, covering an area of 43.6 acres, with a plant building area of 13,000 square meters. Currently, the company employs over 120 staff members. The company comprises various departments, including the General Office, Research and Development Department, Production Department, Technical Department, Quality Inspection Department, and Sales Department. With a production capacity of over 20,000 tons of special wear-resistant parts and mill liners, the company has received high praise from its customers.

The company independently develops new types of wear-resistant materials with two main characteristics: 1. Advanced and scientific material composition; 2. Advanced, scientific, and unique heat treatment processes. The produced liners feature high hardness, high toughness, and long service life without breaking during use. The product’s service life is approximately 30% longer than similar products in the industry. This effectively ensures the operational rate of the mills, reduces operating costs, and improves economic efficiency.

Product Production Scope

Mill Liners

  • Mining ball mill liners
  • Semi-autogenous mill liners
  • Autogenous mill liners
  • Cement mill liners
  • Roller presses
  • Vertical mills
  • Rotary kilns
  • Crushers

Wear-Resistant Parts for Mills

  • Semi-autogenous mills
  • Autogenous mills
  • Ball mills
  • Raw material mills for cement
  • Cement mills
  • Coal mill liners

Roller Presses

  • Manufacturing of roller press rolls
  • Offline and online repair of wear-resistant alloy layers on press rolls
  • Offline repair of roll necks

Vertical Mills

  • Manufacturing of grinding rollers, grinding tables, and roller shells
  • On-site repair of wear-resistant alloy layers

Rotary Kilns

  • Manufacturing of support roller sets, hydraulic thrust rollers, kiln shells, kiln head, and kiln tail guard plates
  • Adjustment of rotary kiln support rollers
  • Diagnosis and resolution of complex issues


  • Manufacturing of hammer crusher hammers, hammer shafts, blow bars, and gyratory crusher concaves

Product Advantages

  1. New Wear-Resistant Steel for Semi-Autogenous Mill Liners:
    Since early 2013, our company has been addressing the issues of easy breakage and rapid wear of large semi-autogenous mill liners. After hundreds of tests and experiments over two years, we successfully completed the trials at the end of 2014 and developed a new wear-resistant steel product with an optimal balance of high hardness and flexibility. The current new wear-resistant steel meets customer requirements for long service life, high wear resistance, and reduced risk of breakage. When used on the same semi-autogenous mill, the lifespan of our liners is over 1.3 times longer than those from other manufacturers with the same specifications.

  2. Wear-Resistant Alloy Layers:
    The wear-resistant alloy layer created through hardfacing exhibits excellent wear resistance, with an operating time of over 8,000 hours.

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