Cone Crusher Wear Parts

The mantle is the liner fitted on the moving head of the cone crusher; the concave, also called the bowl liner, is the stationary liner held in the upper housing. Together they form the crushing chamber, and both are replaceable consumables rather than repaired parts.

Match the cavity to the feed rather than to the product alone. Feed is normally treated as well graded when 90-100 per cent of it passes the closed-side feed opening, with only a small fraction passing the closed-side setting. If the cavity opening is much larger than the top feed size, most crushing happens low in the chamber and the liners wear unevenly.

Two practical signals are used. The first is production: a throughput drop of about ten per cent or more points to worn liners. The second is thickness: published guidance suggests changing an evenly worn liner once it reaches roughly 25 mm at the bottom, because at around 16-19 mm it can crack, the backing can break down and the liner can come loose.

No. Fitting a new component against a worn one changes the profile of the crushing chamber and restricts the feed entering it, which reduces tons per hour. Mantle and concave are normally replaced as a pair, which is also why they are usually quoted together.

Choke feeding keeps the chamber full so material is forced through and air pockets are limited. Feeding off-centre, or letting coarse material collect on one side, concentrates wear, causes ring bounce and produces a worse particle shape, so feed distribution is part of liner life.

Yes. Upper housing castings are listed with the mantle and concave liners in this category. A housing is a structural casting rather than a liner, so fit has to be confirmed from the crusher model together with the existing casting, part number or drawing before it is quoted.