Composite liners are a new type of liners, particularly engineered by TOMINE to address SAG mill leakage due to discontinuous cracks in large alloy liners or loose liner bolts with insufficient pre-tightening force, and over-grinding of material. This type of liners extends the service life of liners and improves the mill grinding efficiency, winning clients’ positive comments.

Structural Modes:

Metal lifter + rubber liner

Metal lifer + rubber composite liner

Composite lifter + rubber composite liner

Combined designs available depending on different working conditions

• Applicable Conditions for Mill Rubber Lining

  1. Ore hardness: the relationship between the wear speed of the rubber lining and metal lining of the mill and the hardness of the ore. Compared with the metal lining of the mill, the harder the ore is, the more wear-resistant the rubber lining of the mill is than the metal lining, so the rubber lining is more suitable for the environment where the ore hardness is higher in the mill.

  2. Steel ball diameter: The steel ball used for rubber-lined mills should generally be around 100mm.
  3. Slurry temperature: The temperature in the barrel of the mill with rubber lining should generally be within 80°C.
  4. The pH value of the pulp: the mill should be lined with rubber, and the pH value of the pulp can be between 2-13.
  5. Feeding particle size and shape: The general feeding particle size of the mill with rubber lining should be about 12mm, which is more suitable

• The physical and mechanical properties of the lining