1) Ceramic engineering 2) Materials science 
A pugmill or pug mill is a machine in which clay or other materials are mixed into a plastic state or a similar machine for the trituration of ore. Industrial applications are found in pottery, bricks, cement and some parts of the concrete and asphalt mixing processes. A pugmill may be a fast continuous mixer. A continuous pugmill can achieve a th...
A machine to take the hard work out of 'wedging'. It is similar in operation to a domestic food mincer, The clay is put in at the top and comes out of the mouth at the bottom in the form of slices or wedges.
A machine for processing and reconstituting clay. Scraps of used clay are compressed by an auger through a tapering barrel and extruded. A De-airing pugmill has the same function with the addition of a vacuum pump to remove greater amounts of air.
A stationary mechanical mixer for blending cement and aggregate.
A machine for wedging clay. It mixes and extrudes clay.