Hammer Mill - High-quality Alloy Steel Beater Arms, Reversible Design | Versatile Crushing For Hard Coal, Lignite, Limestone, And Salt

Hammer
Mill

Fields
of Application

Hammer
Mills are used for primary and secondary crushing of various types of
material in almost all industrial sectors.

Feed
Materials

Hard
coal and lignite in coal processing plants, coking coal for the iron
and steel industry, limestone and gypsum rock or other related soft
to medium-hard minerals, as well as various types of salt.

Mode of Operation

The feed material is distributed over the whole width and fed to the machine by various types of conveyor systems. The high rotational speed of the beater heads generates a closed circuit. The feed material strikes the beater heads from above and is hurled between the beaters and the impact wall while passing through the machine. This repeating process ensures that the feed material is crushed to the desired product size.

The flexible suspension of the beater arms on the rotor ensures that the Hammer Mill is insensitive to damages caused by any hard foreign particles that may be in the feed material. The beater heads are wear parts and can easily be replaced. Adjustment of the grinding wall to the crushing radius (gap width) and rotor speed (m/s) are major factors in determining the reduction ratio and product size.

Impact wall furnished with grinding ledges and replaceable grate in the lower section for reducing oversized grain.

Design

The non-reversible Hammer Mill (Type 1211) allows the beater heads to the reversed when one side is worn out.

Special Features

The rotor is forged in one piece, the fixing holes for the beater arms are arranged in a special device. The precisely balanced design of the opposing beater arms and beater heads ensures smooth running. The beater arms are made of high-quality steel and are easy to replace. The beater heads are manufactured from alloy steel or compound casting.

Hammer Mills are designed to be driven at either constant or variable rotor speeds. Inspection flaps and the hinged housing ensure easy maintenance.

The reversible Hammer Mill (Type 1212) allows bi-directional operation so that both sides of the beater heads can be used.