American Pulverizer Company Laboratory Mills are built for laboratory, pilot plant and other small-scale applications. They will provide a uniformly
crushed product from a wide variety of organic and inorganic materials. Other applications may include: chemicals, coal, pigments, foods, clay, other
friable and fibrous materials.
American Pulverizer Company Laboratory Mills have many of the construction features of our high tonnage units. Each mill is built in our own shop on specifications to fit your application. Before shipment is made they are mechanically operated. Each mill is sold on a guaranteed performance basis. We are in a position to do this as we can make test grindings on your own materials in one of these mills at our testing laboratory.
All parts of the housing are machined to insure dust-tight fit. Jigs and fixtures have been developed for every machining operation to insure interchangeability of parts. The upper housing is split horizontally to give quick accessibility to the crushing chamber, to facilitate cleaning and to prevent contamination of products. This design also provides the easiest method for changing screen plates or grate bars.
The rotor consists of a heavy main shaft of heat-treated alloy steel which rotates on ball bearing mounted in dust-tight, self-aligning pillow blocks bolted to the pedestals of the lower housing.
Practically all of the reduction is done upon the manganese steel breaker and grinding plates in the front of the grinding chamber. These parts are subject to constant wear but can be easily and quickly replaced. Rolling rings or swing hammers deflect from tramp iron and prevent serious damage to the crusher.