Hellweg Maschinenbau GmbH & Co. KG products

Smart Control is new control system that provides user-friendly monitoring, maintenance & repair and guarantees safe and intuitive operation. As with conventional Hellweg granulators, the digital version of each granulator with Smart Control focuses on user-friendliness: the familiar fast operation and intuitive interfaceensure perfect processes.

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.

The Hellweg 100 series beside-the-machine granulators represents an economical solution for use alongside injection moulding machines with a medium amount of sprues to be processed.

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.

The Hellweg 200 series beside-the-machine granulators are suitable to meet the requirements of the blow moulding industry, especially for grinding of PET performs and PET bottles. The grinding chamber is constructed in such a way that optimum material input is ensured, in particular, also with lightweight hollow items such as bottles, canisters and other containers. 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.

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 thematerial can be returned to the production process. Extremely fast and easy cleaning is enabled by division of the grinder into two sections.

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.

The Hellweg series 260 granulators are used for central grinding of sprues, but also sheets, mouldings, sprue flash and especially hollow items such as bottles and canisters, etc. Due to the compact design, these granulators enable user-friendly insertion of material into the granulator from a low height Extraction equipment with cyclones and bag supports are integrated into the machines. Full sound proofing with the use of a feeding hopper insulated against noise is offered as an option, enabling very quiet operation.

The MG 240/260 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 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.