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Cone Crusher Liners: What To Choose And When To Change

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Cone Crushers were developed around century ago to help with secondary, tertiary and even quaternary reduction of material.

Cone Crushers are similar to other crushers that compress. They have the crushing chamber or cavity, inside which the rock is crushed down to a smaller dimension. The crushing chamber in the Cone Crusher is the space between the mantle (the moving part of steel) and the concaves (the stationary piece of steel). The mantle and concaves are shielded from wear and tear through the use of reusable manganese liners.

How to choose a cone crusher liner

A broad range of liners is available to accommodate coarse and fine feeds, but which you select is contingent on a variety of elements. The feed is the primary aspect of Cone Crusher Liners.

A well-graded feed should be used to crush the materials. A well-graded feed is generally considered as:

90-100% of them passing through the closed-side feed opening. Some people also look at the open side and select the smaller one.

40%-60 percent at the midpoint

Zero to 10% passing the closed-side setting.

You should match the whole feed gradation, not just the feed size, so that you utilize the entire chamber. It is essential to use as much of the crushing chamber as you can to achieve the desired reduction and throughput you want.  

Your top feed size will determine the size of the plant's feed and the output of the earlier crushing stage. This will determine the maximum cavity opening. The opening of the cavity should not be excessively large in relation to the overall size of the feed. Cavity openings that are larger than feed sizes can lead to low reduction and liner.

If the feed is not large enough, the majority of the crushing happens in the lower part of the cavity. This means the bottom of liner wears away more quickly than the top liners. Insufficient reduction ratios will cause a decline in production. When the volume is low the crusher's maximum power will be exceeded and bearing alignment issues could arise.

Most wear on Mill Liners Foundry occurs right before the parallel zone (the smallest space between the mantle and the concaves where the crushing occurs) But this wear can be increased in the event that the feed is too small and you'll end with a bowled-out-pocket before the parallel zone too early.

But feed sizes that are not adequate will cause feed material to percolate through the feed opening. This could lead to the liners deteriorating faster. The feed opening is shut, which reduces throughput and lowers production. The product will have more coarse output and will be more slender than cubical. In the case of a minimal power draw the volume limit will be exceeded.

Knowing your crusher's gradation will help you choose the best Crusher Liners configuration, which will meet your production goals. The best liner selection will give you a more efficient nip as well as more room to tweak other parameters, including closed-side setting.