A conveyor that consists of a suitably tensioned endless belt made from hard wearing materials and arranged to run over rollers.

An artefact which is a stack or an assembly of heavy-duty valves intended to be attached to the top of the casing to control the well pressure.

A conveyor in which endless chains are used to support slats, apron, pans, buckets, as distinct from the use of single band.

A physical object that is intended to induce a reaction in a process fluid by heating it.

A conveyor comprising a series of closely spaced rollers set so that their crests can support articles to be conveyed. They may be power-driven, or freely revolving. Tapered rollers are used to form bends in the conveyor line.

Is a conveyer intended to move dry, solid material from one location to another by means of a helix or screw rotating in a cylindrical conduit.

A conveyor consisting of a series of slats generally made of metal or wood attached to an endless chain.

A compactor is a machine or mechanism used to reduce the size of waste material.