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What kind of material should you use for your mill lining set?
To be realistic, there aren’t many options for mill liners. You have the choice between high -density steel and rubber varieties.
Steel is often more expensive and wears out faster in humid environments due to corrosion. Furthermore, steel makes considerably more noise than rubber.
Even with the higher cost, some people prefer steel because it generally lasts longer than rubber in favourable environments. Also, the bigger the mill, the more advantageous steel can be in terms of reducing shutdown time.
Steel has undeniable benefits, but rubber is an option to consider seriously. We know what you’re probably thinking: why?
Why should you use rubber liners?
There are many reasons why rubber is a great material for your mill lining sets. Here are some of them:
Design
Rubber lining design combines computer simulations and inspection data to optimise charge trajectory and wear life. Rubber is a resilient material that is easy and safe to install and handle, reducing the risk of injuries.
For better adjustment, the lining is customised to the speed of the mill and the mineral being processed. It is also optimised to stimulate the mineral as it rotates. Rubber protects your mill from the abuse of mineral processing while allowing highly efficient grinding and crushing.
Rubber lining is available in a wide range of designs, dimensions, and profiles, for a perfect fit in every kind of mill. Properly fitted lining means reduced downtime and increased production. Thus, rubber liners are applicable to a wide range of applications.
Light weight
Because rubber liner weighs less than steel liner, it causes less wear on bearings. Less weight also reduces downtime during installation and replacement, improving production while eliminating the need for a liner handler.
Seal properties
Rubber has excellent sealing properties, eliminating gold lock-up and improving the inventory of valuable product.
Increased throughput
Throughput is increased, as rubber liner virtually eliminates the blinding of grate plates.
Reduced noise
Rubber mill liner reduces noise levels and improves working conditions. It absorbs energy due to high internal losses when exposed to dynamic strains. This means that the sound from a rubber surface is considerably dampened.
The hardest decision you will have to make is between lifetime, shutdown time, and cost. Rubber liner dampens the mineral, causes slower wear on the cylinder, and minimises the impact on the material. An important point to remember is that using rubber material will result in less noise. And last but not least, unlike steel, in a humid environment rubber won’t rust.
Take a look at our range of mill and scrubber linings, here.
Contact us if you have any questions or need help determining the best solution for your needs!