Wear and impact

Wear design > Wear Lining guidelines for mining truck bodies

Wear and impact

When an excavator dumps its first load onto the floor of a mining truck, the body must withstand the heavy impact from large boulders striking the floor’s midsection. This initial damage is typically caused by plastic deformation or cracking, with wear being a secondary factor. After the first load, the floor becomes covered, and subsequent bucket loads no longer hit the floor directly. As more material is added, a heap forms, and the boulders might roll or slide into the sides or front plate, causing denting.

Damage in a mining truck body: a) Direct hit in the floor’s midsection. b) Rocks roll and hit the front and sides. c) During discharge, sliding wear damages the floor and sides primarily in the tail of the body.

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