User's Manual

GRN4-610 Chapter 2: Functional Description 19 of 73

Rotor and Cutters

The material is ground between the knives assembled on the rotor and the stator knives

which are mounted in a fixed position in the machine lower section. All rotors are

equipped with square knives. These knives make light work of the heaviest pieces. The

knives have four corners, so that they can be easily turned once a comer has worn off.

The design of the rotor has a significant influence on the quality of the grinding process

and its results. The rotor construction, the type of knife mounting and the number of

knives have all been exactly matched to your task allocation.

Illustration:

(1) Rotor knife

(2) Stator knife

(3) Discharge area

Due to the compact design this machine can only be used for screen-less operations!

The rotor is accessible after opening the lower housing flap or the upper housing flap.

The rotor is arranged on roller bearings, which are situated outside the housing. The "V"-

belt pulley is attached by means of a taper bush to the rotor axis. The rotor is dynamically

counter balanced and has vibration-free concentricity.

Discharge of grinding material

Illustration:

Conveyor belt discharge