ZERMA GST250/450 granulator hollow body

ZERMA GST 250/450

Optimization of an established concept.

Shredding of large-volume blow-molded parts as well as start and end pieces

The best features of the proven GST and GSC series have been integrated into a compact redesign, with particular emphasis on weight, handling and energy efficiency.
These compact granulators are equipped with complete sound insulation, resulting in extremely quiet operation. The granulators are available with 250 mm rotor diameters and widths of 300, 450 to 600 mm. The curved rear wall of the cutting chamber ensures aggressive material feed and prevents material jams. As with all ZERMA granulators, the rotor and stator knives can be adjusted outside the machine to reduce maintenance downtime.
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The highly tangential, curved rear wall of the cutting chamber combined with the aggressive open rotor design ensures reliable material intake and minimizes the risk of blockages.
The compact granulators are suitable for use in blow molding operations. They are suitable for recycling voluminous parts such as bottles, canisters and crates. Due to the low feed height, the machines can be easily fed with material by hand or a small conveyor belt. The low noise emission and small footprint make the granulator the perfect solution for inline shredding

Optional rear wall with higher stator knife M version:
The feed method with a higher stator blade is better suited for thicker-walled and more compact parts, such as injection-molded parts, profiles, sheets, etc. Due to the cutting geometry and the lower aggressiveness of the rotor, a high-quality regrind is achieved regardless of the material type or shape, e.g. injection molded parts, profiles, plates, etc.

Control system and control cabinet:
The integrated control and control panel not only complies with all applicable safety regulations, but can also be adapted to specific requirements. In addition, peripheral equipment such as feed conveyors, metal detection and unloading systems can be seamlessly integrated into the machine's control system. For improved efficiency, an optional intelligent energy saving function is also available, which reduces power consumption during idle times and can automatically start and stop the system based on the status of upstream machines.

Standard configuration with blower, power consumption 0.75 kW and 400 cyclone

Rotor diameter (mm) 250
Rotor width (mm) 450
Drive (kW) 7.5
Number of rotor blades 3 x 2
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Number of stator knives 2
Screen perforation (mm) > 6
Weight approx. (kg) 700
Feed opening (mm) 380 x 450
Opening feed option of the M version (mm) 295 x 450

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