Mill Liners By Qiming Machinery®

Mill liners are an essential component of grinding mills that serve a dual purpose. Firstly, they protect the cylinder body from the direct impact and grinding of the grinding body and materials. Secondly, they help adjust the movement state of the grinding body in each warehouse, which in turn affects the grinding efficiency and product quality.

Choosing the right type and design of mill lining is crucial for optimizing mill throughput and minimizing total grinding costs. The optimization process should consider various factors such as energy consumption, grinding media wear, maintenance costs, and safety. Therefore, choosing a customized wear part that fits the specific application is a must.

At Qiming Casting, we work closely with our customers to identify their unique needs and processes. Our focus is on designing and supplying mill linings that are optimized for the current operating conditions. We offer a wide range of materials and designs tailored to fit each specific application, including competitor mills, and all parts of the mill.

Our lining design approach focuses on grinding performance, mill uptime, and safety. We carefully consider factors such as liner profile, thickness, and material selection to ensure optimal grinding performance, while minimizing downtime and maintenance costs. Additionally, we prioritize safety by considering factors such as installation and handling procedures, which can help reduce the risk of accidents and injuries.

At Qiming Casting, we are committed to providing our customers with high-quality mill linings that are optimized for their unique needs. Our wide product range, innovations, knowledge, and experience make us a trusted partner in the industry.

Manganese mill liners by Qiming Casting

Manganese mill liners

Qiming Casting produces grid liners and smaller liners using manganese steel, which contains Mn14 and Mn18 alloy steel. The liner has a great advantage in that it hardens under stress while the substrate remains tough and can withstand extreme impact without breaking. However, its primary disadvantage is that it spreads upon impact, causing solid liners to squeeze together and become extremely difficult to remove, which can also damage the mill shell if the stress is allowed to build up to an extreme level.


Learn more about manganese mill liners→

Cr Mo alloy steel mill liners by Qiming Casting

Cr-Mo alloy steel mill liners

Qiming Casting is a leading manufacturer of liners for AG, SAG, and ball mills. They specialize in producing these liners using chrome-moly steel, which is known as L2B and L2C grade under Australian standards. This material is highly resistant to wear and tear, making it an excellent choice for use in high-friction environments such as grinding mills. Additionally, it offers some degree of impact resistance, which makes it ideal for use in discharge grates where slightly better impact resistance is required compared to other types of steel.

It’s important to note that as the size of the liners is outstripping the properties provided by the standard high chrome-moly steels, there is ongoing research and development being carried out in this field. Qiming Casting is at the forefront of this research and is constantly working to improve the properties of their liners to meet the changing demands of the industry. By using their expertise and advanced manufacturing techniques, they are able to produce liners that meet the highest standards of quality, durability, and performance.


Learn more about Cr Mo alloy steel liners→

Ni-hard Iron Mill Liners By Qiming Casting

Ni-hard iron mill liners

Qiming Casting is the leading supplier of Ni-hard iron steel mill liners for cement industry customers. Our casting material is the most advanced and effective solution for abrasion resistance in milling available today. It is widely used in cement mills, including some of the largest ball mills in the world, where no better performance has been achieved to date. Choose Qiming Casting for unparalleled quality and performance in your milling operations.



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Ball mill liners By Qiming Casting

Ball mill liners

Qiming Castings manufactured high-quality manganese and alloy steel ball mill liners for ball mills customers. Those liners include:

• Single wave liners
• Modified single wave liners
• Double wave liners
• Shell liners
• Feed head liners
• Discharge end liners


Learn more about ball mill liners→

AG/SAG Mill liners

AG/SAG mill liners

Qiming Casting manufactures manganese steel and alloy steel liners for AG and SAG mills. Those liners include:

• Integrated and/or plate and lifter designs for head and shell liners
• Grates
• Pulp lifters
• Filler rings


Roll mill liners by Qiming Casting

Roll mill liners

Qiming Casting manufactures manganese, chrome, and alloy steel liners for roll mills. Those liners include:

• Shell liners
• Head liners
• “Wedge” shell liners
• Roll liners


Learn more about roll mill liners→