FLEXAL Machinery & Automation: Home > Granulators > Serie 250 Slotter – slow cutter
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.
The divided grinding chamber guarantees fast opening, good acces and thereby fast cleaning, for example, when changing colour or material.
Larger and bulkier parts are pre-cut (ahredded) between the pre-cutters around the roll and wall of the enclosure. The shredded material is then granulated between the roll rotor and the counter blades before leaving the granulator.
The compact, space saving design with a right-angled gear drive enables the granulator to be used directly at injection moulding machines.
The cutting equipment of the series 20 roll mill rotor granulator consists of a segmented roll rotor and one or number of pre-cutters and counter blades, depending on the version.
The achievable particle size of the ground material depends on the width and height of the teeth sides and lies in the range of 4-8 mm, with throughput performace of approx. 5-15 kg/h.
The series 250 roll mill granulators are ideally suited for granulation of bulky glass reinforced plastic sprue cores, gating and complete sprue and runner systems.
Our technical sales representatives will help you to find a suitable solution for your application. Please don’t hesitate in contact with us.