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ZERMA's GSL 180 slow speed plastics granulators feature a staggered 180 mm diameter rotor in widths from 180 to 430 mm; concurrently, the GSL 300 series has a 300 mm diameter rotor in widths from 400 to 800 mm. A geared motor directly drives the rotor. As well as, its low speed reduces our grinder’s noise level and creates less dust while grinding. The GSL Series’ specially-designed knives can be sharpened easily and don’t require adjustment afterward.
Depending on the application, the GSL Series slow speed plastics granulators can be fitted with a wide variety of sound-absorbing feed hoppers and base frames and a built-in blower system with matching suction bins or bag-filling adapters allowing integration with most types of injection molding machines and robots.
ZERMA's slow speed plastics granulators are mainly used as beside the press machines to grind plastic runners and sprues in injection and blow molding processes. The resulting granules are then immediately reintroduced into the production process. In addition, our beside the press granulators can be used for rejected products in the in-line recycling process as well.
Our GSL 300 Series’ rugged design allows it to be used for stronger and thicker materials while offering the same advantages of minimized dust and reduced noise at a low speed as the smaller GSL 180 Series. Furthermore, these adaptable grinders can also be used as low-noise central granulators for small throughput requirements as well.
We are here to help with all your plastic size reduction needs. LOG Injection Molding Machine will cover your entire spectrum of plastic injection molding machinery.
Specially-profiled Rotor Knife
Staggered Rotor Blades
Quick Snap Fastening System
| GSL 180 Series | GSL 180/180 | GSL 180/300 | GSL 180/430 | |
|---|---|---|---|---|
| lbs/hr | ||||
| Rotor Diameter | mm | 180 | 180 | 180 |
| Rotor Width | mm | 180 | 300 | 430 |
| Rotor Speed | rpm | 150 | 150 | 150 |
| Drive Capacity | kW | 3 | 4 | 4 |
| Rotor Knives | pcs | 18 | 30 | 45 |
| Stator Knives | rows | 2 | 2 | 2 |
| Screen Size | mm | >5 | >5 | >5 |
| Dimensions | ||||
| A | mm | 890 | 1095 | 1240 |
| B | mm | 610 | 610 | 910 |
| C | mm | 460 | 460 | 550 |
| D | mm | 345 | 345 | 430 |
| E | mm | 345 | 345 | 345 |
| F | mm | 455 | 455 | 615 |
| GSL 300 Series | GSL 300/400 | GSL 300/600 | GSL 300/800 | |
|---|---|---|---|---|
| lbs/hr | ||||
| Rotor Diameter | mm | 300 | 300 | 300 |
| Rotor Width | mm | 400 | 600 | 800 |
| Rotor Speed | rpm | 150 | 150 | 150 |
| Drive Capacity | kW | 7.5 | 11 | 18.5 |
| Rotor Knives | pcs | 33 | 48 | 66 |
| Stator Knives | rows | 2 | 2 | 2 |
| Screen Size | mm | >5 | >5 | >5 |
| Dimensions | ||||
| A | mm | 1125 | 1125 | 1135 |
| B | mm | 400 | 400 | 400 |
| C | mm | 1335 | 1335 | 1340 |
| D | mm | 405 | 600 | 830 |
| E | mm | 1035 | 1230 | 1635 |
The GSL Slow Speed Granulator is a low-speed, beside-the-press granulator used for recycling plastic molding, sprues, and rejected parts from injection and blow molding applications. Its slow-speed operation minimizes noise and dust while producing high-quality regrind. Designed for easy maintenance and quiet performance, the GSL granulator is ideal for continuous in-line recycling in production environments.
A Slow Speed Granulator is used because it provides a quiet, efficient, and dust-free solution for recycling plastic runners, sprues, and small molded parts directly beside molding machines. Its low-speed design minimizes heat buildup and material degradation, ensuring high-quality regrind that can be immediately reused in production — helping reduce waste and improve overall manufacturing efficiency.
It efficiently handles runners, sprues, and small plastic parts produced during injection and blow molding. The resulting regrind can be directly reused in production, helping manufacturers reduce waste and material costs.
The GSL Slow Speed Granulator offers several key advantages, including low noise operation, minimal dust generation, and consistent regrind quality. Its direct-drive system ensures reliable performance with low energy consumption, while the special knife design eliminates the need for frequent adjustments. Compact, easy to clean, and simple to maintain, the GSL granulator is ideal for beside-the-press recycling in injection and blow molding applications.
You can easily request a quote or discuss technical details by contacting ZERMA America through the website’s contact form or reaching out to the support team directly. Our experts will recommend the best GSL configuration for your specific molding setup.
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