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Mill Liners

Mill Liners for Vertical Roller Mills, SAG Mills, and Ball Mills - Qiming Casting!

Qiming Casting, a leading manufacturer of high manganese steel and alloy steel casting in China, is dedicated to providing superior quality mill liners for your grinding operations. With years of experience in the industry, we understand the demands of mining and mineral processing, and our products are designed to withstand the harshest conditions.

Our mill liners are specifically engineered for vertical roller mills, semi-autogenous grinding (SAG) mills, and ball mills. These liners are crafted from high-grade materials that offer exceptional wear resistance and durability, ensuring maximum service life and minimal maintenance.

Customized Solutions

We offer tailored mill liner designs to meet the specific requirements of your operation, ensuring optimal performance

Superior Materials

Our mill liners are made from high manganese steel and alloy steel, which are renowned for their toughness and resistance to abrasion

Precision Manufacturing

Utilizing advanced manufacturing techniques, we produce mill liners with precise dimensions and superior finish, ensuring a perfect fit in your equipment

Enhanced Performance

Our liners are designed to improve grinding efficiency, reduce energy consumption, and increase the overall productivity of your milling operations.

Reliable Service

We provide prompt delivery, technical support, and after-sales service to ensure your satisfaction and the smooth operation of your grinding processes.

Competitive Pricing

We offer competitive pricing without compromising on quality, making our mill liners a cost-effective solution for your business.

Various Type Of Mill Liners

Qiming Casting supplies a wide range of high-quality mill liners for vertical roll mills, semi-autogenous mills, and ball mills, with various optimized alloy recipes to deliver increased.

Ball Mill Grates

Mill Grates

Grates allow smaller particles to exit the mill while retaining larger pieces for further grinding.

Discharge End Liners

Discharge End Liners

These help control the flow of ground materials out of the mill.

Feed End Liners

Feed End Liners

Feed end liners are designed to protect the shell of the mill from incoming materials.

Lifter Bars

Lifter Bars

Lifter bars facilitate the lifting and falling of grinding media.

Shell Liners

Shell Liners

Shell liners are essential for protecting the shell of the mill from wear and tear caused by grinding media and mineral particles.

Vertical Roller Mill Roller

Vertical Roller Mill Roller

Grinding rollers and tables are the primary components responsible for grinding materials. The rollers are mounted on a shaft and rotate against the grinding table, which is lined with a replaceable, wear-resistant material. Due to the abrasive nature of the materials being ground, the rollers and tables are subjected to high wear.

Vertical Roller Mill Table

Vertical Roller Mill Table

Grinding rollers and tables are the primary components responsible for grinding materials. The rollers are mounted on a shaft and rotate against the grinding table, which is lined with a replaceable, wear-resistant material. Due to the abrasive nature of the materials being ground, the rollers and tables are subjected to high wear.

Feeding Chute Liners

Feeding Chute Liners

The feed chute where the material enters the vertical mill is also susceptible to wear and tear, so it is usually protected with materials such as wear-resistant steel plates or ceramic patches.

Material Selection of Mill Liners

Choosing the right material is the most effective way to extend the life of the mill liners. We not only provide standard wear parts but also provide redefining wear parts for customers.

Standard Wear Parts

Standard materials make standard wear parts.

Material Working Conditions Suit Wear Parts
 Manganese Steel (Mn14,Mn18,Mn14Mo,Mn18Mo) This material is commonly used for grid liners and typically in smaller milling operations. A significant advantage of this material is its ability to work harden under stress, maintaining a tough substrate that can endure severe impacts without fracturing. However, its main drawback is that it tends to spread under the impact, causing solid liners to start pressing against each other and become challenging to remove. If the stress is permitted to accumulate to an excessive level, it can also lead to damage to the mill shell.
  • AG mill liners
  • SAG mill liners
  • Ball mill liners
Low Carbon Chrome Moly Steel (300 to 370BHN) This material was widely employed for mill liners (AG, SAG, and Ball) before the transition to steels with higher carbon content. It exhibits outstanding wear characteristics coupled with some level of impact resistance. Presently, it is frequently utilized for discharge grates, where a marginally superior impact resistance is demanded in comparison to the higher carbon chrome moly steels, or for liners of thinner cross-sections.
  • AG mill liners
  • SAG mill liners
  • Ball mill liners
High Carbon Chrome Moly Steel (325 to 380BHN) This steel is currently regarded as the primary material for SAG mill liners. There are several adaptations available, each with varying carbon or chrome contents. These variations often influence the size of the liner and the thickness of its cross-section. Continuous advancement is taking place in this field as the dimensions of the liners are surpassing the properties supplied by conventional high chrome moly steels.
  • SAG mill liners
High Chrome Irons (+600BHN) Cr Iron It is considered to have superior wear abrasion characteristics and is generally used in rod and ball mills. It is more cost-competitive but more brittle than chrome moly white irons.
  • Vertical roller mill parts
  • Rod mill parts
  • Ball mill liners
Chrome Moly White Irons (600 to 700BHN) WI This cast material is considered to be the ultimate developed and used to date for abrasion resistance in Milling. It is commonly used in cement mills and some of the largest Ball Mills in the world and where performance has not been bettered to date.
  • Large ball mill liners
  • Cement mill liners
Ceramic Grinding Rollers

Redefining Wear Parts - Ceramic Grinding Rollers

Ceramic grinding rollers are made of wear-resistant industrial ceramic particles (inlay) and high-chromium cast iron (matrix). They’re a new type of composite wear-resistant grinding roller produced through one-go pouring and casting technology.

Ceramic grinding rollers are considered the best wear-resistant solutions for vertical mills and are now widely used in cement, metallurgy, electric power, construction, mining, and other industries.

FAQ

Different materials have different wear resistance and service life. Customers need to understand the material of the liners to ensure that it meets their needs.

Customers need to understand the installation and maintenance requirements of the liners to ensure that they can easily operate them.

  • The old material of the liners
  • The whole drawings of the liners
  • The size of mill plant

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