Machine-side-granulators - 1.5 - 5.5 kW

series 150 - Processing of bulky sprue cores Revenue source: raw material savings through return of sprues The Hellweg 150 series beside-the-machine granulators can be connected very easily to one or more injection moulding machines, due to their especially flat construction. Extremely bulky sprue cores, sprue gating and complete sprue and runner systems can be removed after opening of the moulding tool and then ground on the spot. Introduction of material can take place as desired, with a chute, free-fall hopper or conveyor belt. Material can be removed by connecting freely available standard extraction fittings. A tall rack is offered as an option to fill the ground material into a bulk container or bags. When fitted with an appropriate feeding equipment, the machines are used to process film edge strips.

series 180 - central grinding

Central processing, high flexibility and reliable grinding Operation of only one central Hellweg granulator can be advantageous, compared with buying several beside-the-machine granulators. Lower investment costs and better machine utilisation can then mean greater profitability. On-line recycling directly at the injection moulding machine is not always possible. So rejected parts, sprues and runners can be collected within a plastics processing operation and passed to the Hellweg Series 180 central granulator fitted with extraction equipment. Both lightweight and thinwalled, as well as heavy and thick-walled parts can be ground.

series 250 - slow running roll mill - Slotter – low dust granulation without sieve

The Hellweg ”Slotter” (”Slow Cutter”) type roll mill works without use of sieves and with low speed of just 25 rpm, so that gentle granulation of sprues and gating parts takes place, preventing thermal degradation, ensuring faster output of ground material and regrind with an extremely low level of dust, that is often a decisive criterion to ensure that the material can be returned to the production process. Extremely fast and easy cleaning is enabled by division of the grinder into two sections

series 80 Mini with high performance - processing of the smallest sprues

The small, compact Hellweg 80 series of beside-the-machine granulators are used directly mounted on the frame of an injection moulding machine or beside-the-machine. There they grind, among others, sprues arising from small to very smallest components and products in so-called micro injection moulding of, for example, mobile phones in telecommunications, or medical products such as syringes, drain tubes, etc. Other application fields are the laboratory area and model construction

Slow running granulators - 25 r.p.m.

Slotter – low dust granulation without sieve The Hellweg ”Slotter” (”Slow Cutter”) type roll mill works without use of sieves and with low speed of just 25 rpm, so that gentle granulation of sprues and gating parts takes place, preventing thermal degradation, ensuring faster output of ground material and regrind with an extremely low level of dust, that is often a decisive criterion to ensure that the material can be returned to the production process. Extremely fast and easy cleaning is enabled by division of the grinder into two sections