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ZERMA's GST Series Tangential Compact Soundproofed Granulators feature a compact soundproofed enclosure and sound dampening hoppers. Our granulators are available in two rotor diameters, 250 mm and 400 mm in widths from 300 mm to 1000 mm. While the smaller machines feature an open F-type rotor, the granulators rely on a heavier S-type rotor. In addition the curved back wall of the cutting chamber ensures aggressive ingestion while also avoiding blockages. Furthermore, the rigid design makes them dependable units and includes advanced standard features such as replaceable wear plates. As on all ZERMA granulators, the rotor and stator knives are adjusted outside of the machine to reduce downtime for maintenance.
ZERMA 's GST Series Tangential Compact Soundproofed Granulators are inline granulators. Primarily designed for use in plastics blow molding applications to recycle voluminous parts such as bottles, canisters, crates, as well as plastics blow molding flush and injection sprues. The low feeding height makes them suitable for both hand and conveyor feeding. Whereas, the low noise level and small footprint make it the perfect fit for inline recycling operations.
Voluminous Part Recycling
Tangential Cutting Chamber
Easy Chamber Accessibility
| GST 250 & 400 Series | GST 250/300 | GST 250/450 | GST 250/600 | GST 400/600 | GST 400/1000 | |
|---|---|---|---|---|---|---|
| lbs/hr | ||||||
| Rotor Diameter | mm | 250 | 250 | 250 | 400 | 400 |
| Rotor Width | mm | 300 | 450 | 600 | 600 | 1000 |
| Drive Capacity | kW | 7.5 | 11 | 18.5 | 22 | 30 |
| Rotor Knives | rows | 3 | 3 | 3 | 3 | 3 |
| Stator Knives | rows | 2 | 2 | 2 | 2 | 2 |
| Screen Size | mm | ≥6 | ≥6 | ≥6 | ≥6 | ≥6 |
| Effective Working Area | mm x mm | 250 x 300 | 250 x 450 | 250 x 600 | 400 x 600 | 400 x 1000 |
| Weight (approx.) | kg | 1200 | 1400 | 1850 | 3300 | 4000 |
| Dimensions | ||||||
| A | mm | 1350 | 1600 | 1750 | 1550 | 1950 |
| B | mm | 1880 | 1880 | 1880 | 2180 | 2180 |
| C | mm | 1380 | 1380 | 1380 | 1540 | 1540 |
| D | mm | 300 | 450 | 600 | 590 | 990 |
| E | mm | 370 | 370 | 370 | 490 | 490 |
| F | mm | 1220 | 1220 | 1220 | 1460 | 1460 |
The GST Tangential Compact Soundproof Granulator is a high-performance, low-noise granulator designed for processing voluminous plastic parts from blow molding and injection molding applications. It features a tangential infeed design and a curved back wall that allows smooth material intake while preventing blockages. With its soundproof housing, replaceable wear plates, and externally adjustable knives, the GST granulator delivers reliable, quiet, and efficient size reduction in compact in-line recycling setups.
This granulator is specifically designed for blow molding and injection molding environments. It efficiently handles voluminous parts such as bottles, canisters, crates, and sprues, making it a perfect choice for continuous, inline recycling setups.
The GST Tangential Compact Soundproof Granulator offers a compact, noise-reducing design ideal for inline recycling. Its soundproof chamber and hopper ensure quiet operation, while the aggressive tangential in feed and curved back wall allows efficient processing of bulky plastic components.
Yes. Maintenance is simple and efficient — both rotor and stator knives are adjusted outside the machine, reducing downtime. The machine’s rugged build and replaceable wear plates further extend service life and ease of use.
You can request a quote or reach out for support through the contact form on ZERMA America’s website. Our specialists will help you choose the best configuration for your recycling system and production needs.
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