Smulkinimo mašina

Zerma GST 250/450

Optimization of an established concept.

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

In a compact redesign, the best features from the proven GST and GSC series have been integrated, with special emphasis on weight, handling, and energy efficiency. These compact granulators are fully soundproofed, resulting in exceptionally quiet operation. The granulators are available with a rotor diameter of 250 mm and widths of 300, 450, and up to 600 mm. The curved back wall of the cutting chamber ensures aggressive material intake and prevents material jams. As with all ZERMA granulators, rotor and stator knives are adjustable outside of the machine, which helps minimize downtime during maintenance.

The highly tangential, curved back wall of the cutting chamber, in combination with the aggressive open rotor design, ensures reliable material processing and minimizes the risk of blockages.

These compact granulators are suitable for use in blow molding operations. They are ideal for recycling large-volume items such as bottles, canisters, and crates. Thanks to the low feed height, materials can be easily loaded either manually or via a small conveyor belt. The low noise emissions and space-saving footprint make this granulator the perfect solution for inline size reduction.

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Optional rear wall with elevated stator knife (M version):
The feeding method with an elevated stator knife 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 reduced aggressiveness of the rotor, high-quality regrind is achieved regardless of material type or shape, e.g., injection molded parts, profiles, sheets, and so on.

Control system and electrical cabinet:
The integrated control and operator panel comply with all current safety regulations and can also be tailored to specific requirements. In addition, peripheral devices such as feed conveyors, metal detectors, and discharge systems can be seamlessly integrated into the machine's control system. For increased efficiency, an optional intelligent energy-saving feature is available, which reduces power consumption during idle phases and can start or stop the system automatically based on the status of upstream machines.

Standard configuration with blower, power consumption 0.37 kW, and 400 cyclone

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

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