The American Pulverizer reversible hammermills and impactors are ideal for reducing foundry slag and sand, cement rock, silicon carbide, potash, limestone, alumina, salt cake, fire brick, ores, glass frit, and mill scale.  The frame consists of plate steel weldments that are rib-reinforced where shredding strains are the greatest. All abutting surfaces are machined for a dust-tight fit.  The hammers are approximately 500-550 Brinell in hardness, and are supported from heat-treated alloy steel hammer shafts. The machine is lined throughout with renewable abrasion-resistant and manganese steel liners. The bottom portion of the crusher supports the cage assemblies which are furnished with steel single grate bars designed to yield a uniform product. To control product size, screw-jacks are provided on both crusher cages to allow for clearance adjustment between the cage and the rotating hammers. A tramp iron pocket chamber and actuator allows for simple removal of uncrushables.  The upper machine housing contains a hinged access door on each end to allow for quick and easy entry into the machine for maintenance and cage removal.  Additional access doors are located in the lower housing on each side of the crusher for inspection and maintenance purposes.

Standard Features:

Breaker plate liners are interchangeable, reversible and individually removable
Liners are made of either cast manganese or abrasion resistant alloy steel
All units have 4150 heat treated alloy forged rotor shafts
Heavy duty cast manganese steel hammers
Grease lubricated spherical roller bearings.  Circulating oil systems are available as a option on smaller machines, standard on larger machines
Pillow blocks available with RTD's to monitor spherical roller bearing temperature.
Machines available with vibration switches.
Screen cages and breaker plates are adjustable for fine tuning of product size and to compensate for wear.