Coal Mill Parts

Yuexin Machinery's Coal Mill Parts utilize special materials such as high-chromium alloys, bimetallic composites, and wear-resistant cast iron. Through CNC precision machining and strengthening treatment, they exhibit exceptional wear resistance and fatigue resistance, making them compatible with a wide range of models. They can precisely match mainstream coal mills such as ZGM, HP, and RP, ensuring stable operation of the coal milling system due to their high wear resistance and impact resistance.

Company Production Advantages

Relying on a mature production system and strict quality control, the company achieves full control over the production process, ensuring stable and reliable product quality. It is also equipped with various large-scale CNC vertical and horizontal lathes and cutting equipment, and possesses professional riveting and welding capabilities, providing customers with continuous and stable supply and usage guarantees.

From thermal power plants to chemical groups, our company has built a strong reputation for cooperation based on its core product strength. We consistently meet the diverse needs of our clients with reliable quality and customized services, and we look forward to working with more partners for mutual benefit!

Product Parameter (Specification)

Product Feature And Application

Tangshan Yuexin Machinery Manufacturing Co., Ltd.'s Coal Mill Parts utilize a combination of CNC vertical lathes and CNC gantry machining centers to ensure a ≥98% fit between the grinding rollers and liners, significantly reducing operational impact. Wear-resistant parts are manufactured using a centrifugal casting + laser cladding composite process, resulting in a uniform wear-resistant layer thickness and a service life more than 60% longer than ordinary parts. Core load-bearing components such as the spindle and tie rods undergo tempering heat treatment to eliminate internal stress, making them suitable for high-frequency vibration conditions in coal mills. We also support the upgrade and modification of old coal mill parts, accurately replicating them according to original machine drawings for seamless replacement.

Our Coal Mill Parts are widely used in the thermal power, chemical, and metallurgical industries, including grinding roller assemblies and liner kits for coal mills, scrapers and guide sleeves for grinding systems, and grinding media and end covers for ball mills. Already adapted to power plants of power groups such as Huaneng and Datang, as well as coal grinding production lines of chemical enterprises in Hebei and Tianjin, its superior technology and high adaptability improve coal grinding efficiency, reduce power consumption per ton of coal, and minimize downtime for maintenance, supporting the stable operation of coal grinding systems across various industries.

Yuexin Machinery's Coal Mill Parts are managed according to a standardized process from raw material selection to precision machining, strengthening treatment, and comprehensive testing. When selecting raw materials, spectral analysis and ultrasonic testing are performed on high-chromium alloys to eliminate porosity and inclusions, ensuring that wear-resistant components meet standards. During machining, rough machining is first performed using CNC equipment, followed by precision grinding of key surfaces using a CNC grinding machine. The roundness error of the grinding rollers is controlled within 0.03mm, ensuring smooth operation of the parts.

Wear-resistant parts undergo high-temperature quenching and low-temperature tempering treatment, resulting in a particularly strong bond between the wear-resistant layer and the substrate, preventing detachment during use. Load-bearing components undergo nitriding treatment, significantly improving surface hardness and corrosion resistance. During testing, a hardness tester, a coordinate measuring machine, and a dynamic balancing tester are used for comprehensive testing to ensure that the precision, hardness, and operational stability of all components meet the GB/T 19001-2016 standard.