Mill Liners Manufacturer

Qiming Machinery is a leader in the design, manufacture, and supply of mill liners for mineral processing and quarrying industries. We offer our customers complete wear liner solutions for mills that increase performance, equipment availability, and lower maintenance costs. Our mill liners are also tested to withstand the acidity level of different elements that may be present in the milling process. Longer milling life to your machine means fewer expenses and more profit or income to your company.

Qiming Machinery mill liners are subjected to different combinations of impact and abrasion, as they are used in SAG/AG, ball or rod mills. Our wear parts are manufactured to the highest standards of quality and delivery, ensuring high levels of reliability for our customers. Also, our mill liners wear parts that add value to customers’ processes through customized designs.

Longer Mill Life, Higher Profit

Our mill liners are also tested to withstand the acidity level of different elements that may be present in the milling process. Longer milling life to your machine means fewer expenses and more profit or income to your company.

Qiming Machinery can also be an issue. With the rubber formulated liners attached to your millers, it will not intervene with the grinding process, and thus, you are saving a lot of money with the maintenance.

Wear Out Mill Liners

To give our customers peace of mind, as you purchase liners from us, we will provide you the expected life duration of your liners. This will depend on your type of milling business, the number of grinding hours in a day, and other factors that may affect the quality of your machine.

Entrust your business to the experienced team. Get in touch with us by getting a free quote from our website. Our team will get back to you with our advice and recommendations.

Types Of Mill Liners

Qiming Machinery supplies different types of mill liners to our customers.

SAG/AG Mill Liners:
• Integrated and/or plate and lifter designs for head and shell liners
• Grates
• Pulp lifters
• Filler rings

Ball Mill Liners:
• Single wave liners
• Modified single wave liners
• Double wave liners
• Shell liners
• Feed headliners
Discharge end liners

Rod Mill Liners:
• Shell liners
• Headliners
• “Wedge” shell liners

Mill Liner Material Selection

As a casting foundry, Qiming Machinery supplies different material selection for our customers to help them find the best suitable material for his mill plants.

The selection of the material of construction is a function of the application, kind of ore, size of mill, corrosion environment, size of balls, mill speed, etc. liner design and material of construction are integral and cannot be chosen in isolation. Qiming Machinery supplies the following 6 kinds of material to cast mill liners:

  1. Manganese Steel: This is used for grid liners and generally smaller mills. Its great advantage is that it works hardens under stress, yet the substrate remains tough and can withstand extreme impact without fracture. Its primary disadvantage is that it spreads with impact, so solid liners begin to squeeze together and become extremely difficult to remove, and can damage a mill shell if the stress is allowed to build up to an extreme level.  View More!
  2. Low Carbon Chrome Moly Steel (300 to 370BHN): Was generally used for mill liners (AG, SAG, and Ball) prior to the movement to higher carbon content steels. It has excellent wear characteristics with some impact resistance, generally now used for discharge grates where slightly better impact resistance is required compared to the higher carbon chrome-moly steels or for thinner section liners. View More!
  3. High Carbon Chrome Moly Steel (325 to 380BHN): This steel is now considered the main material used for SAG mill liners. There are a number of variations with either different carbon or chrome contents. The variations tend to have a bearing on the size of the liner and its section thickness. There is ongoing development within this area as the size of the liners are outstripping the properties provided by the standard high chrome-moly steels. View More!
  4. Nihard Iron (550BHN): The use of this type of material generally began with Rod Mills and Ball Mills, where impacts were considered low enough for this brittle yet highly abrasive resistant wear material to perform well. However, it is now considered obsolete in light of the use of high chrome irons and chrome-moly white iron. View More!
  5. 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. View More!
  6. Chrome Moly White Irons (600 to 700BHN) WI: This casting 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. View More!

Products

Mining Mill Liners

With the shortage of high-quality iron ore and other resources in China, a large number of low-grade materials begin to enter the beneficiation process, which reduces the grinding efficiency of the ball mill, and the liner is the most important consumption part of the mill. According to statistical data, the loss of mill liner in…

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Ni-Hard Mill Liners

What is Ni-Hard Steel? Ni-Hard is a white cast iron, alloyed with nickel and chromium suitable for low impact, sliding abrasion for both wet and dry applications. Ni-Hard is an extremely wear-resistant material, cast in forms and shapes which are ideal for use in abrasive and wear environments and applications. The use of this type…

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Manganese Mill Liners

Why use manganese steel to cast mill liners? Manganese steel, also called Hadfield steel or mangalloy, is a steel alloy containing 12-14% manganese. Renowned for its high impact strength and resistance to abrasion in its hardened state, the steel is often described as the ultimate work hardening steel. Manganese steel is used for grid liners…

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SAG Mill Shell Liners

Autogenous mill is a new type of grinding equipment with both crushing and grinding functions. It uses the grinding material itself as the medium, through the mutual impact and grinding effect to achieve comminution. The semi-autogenous mill is to add a small number of steel balls into the autogenous mill, its processing capacity can be…

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