Hellweg Maschinenbau GmbH & Co. KG

Lump granulators

Hellweg Maschinenbau

Series 300 BR - Motor output: 22.5 - 30 kW

Single stage shredding of solid start-up lumps

The MG 450/300 BR lump granulator enables single stage shredding of solid start-up lumps, thick plates and similar items. The rotor of the lump granulator is made from one piece of metal and therefore has enormous stability in transfer of even high torque.

The U-CUT geometry used for the blades enables a cutting principle that is based on a so-called “peeling cut”, combined with limitation of cutting depth. This prevents the rotor blade from penetrating too deeply into the plastic lumps being shredded.


The material is “peeled off” from the lumps so that blockage of the rotor is prevented and fast and energy-saving shredding is guaranteed. An entire sound protection can also be offered as an option.

The benefits:

  • single stage shredding of solid start-up lumps
  • stiff, non-twisting solid U-CUT rotor
  • ideal granulate quality with very low dust
  • highly precise production, heavy housing welded
  • outer bearing assembly fitted, dust protection
  • wear resistant versions for reinforced plastics
  • structural design for easy, complete cleaning
  • high performance belt drive
  • high throughput at low drive power
  • direct mounting of the knives on solid rotors
  • eliminating need for rotor knife adjustment
  • quick sieve and knife change
  • both rotor and stator knives can be re-sharpened many times
  • almost maintenance-free
Product details

Techn. data:

Working widths:450-600 mm
Rotor diameter:300 mm
Motor output:22,5 - 30 kW
No. of rotor knives:6
No. of stator knives:2
Rotor speed:490 r.p.m.
Nominal weight:appr. 1.800 kg
Grinding output:appr. 180-350 kg/h

Start up lump granulators - Series 300 BR


Details - Series 300 BR