There can be constrained and articulated buffing heads on separate machines or they can be combined onto one
machine. Buffing machines present significant mechanical hazards, as well as those from dust, fume, and noise.
Peeling devices are most common on truck tyre buffing machines. The tyre rotates against a static circular cutting
blade or semi-circular knife, to strip off surplus tread before buffing. This process produces less dust and fume, and
is not so noisy