Granulator

ZERMA GSL 300/600

Slow-speed beside-the-press granulator GSL 300

Rotor diameter (mm): 300
Rotor width (mm): 600
Rotor speed (rpm): 150
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Drive power (kW): 11
Number of rotor knives: 48
Number of stator knives: 2
Screen perforation (mm): > 6
Weight approx. (kg): 950

The slow-speed granulators in the GSL series are primarily used in injection molding and blow molding applications for inline recycling of sprues and defective parts. Thanks to various hopper and extraction systems, these machines can be flexibly integrated into existing installations.

GSL 300 models are also suitable as central granulators for lower throughput rates.

GSL Series Highlights:
- Low noise level due to the rotor’s low speed, inclined cut, and multilayer sound-insulated hopper in sandwich construction
- Powerful and efficient drive thanks to branded gearbox
- Simple maintenance, cleaning, and knife changes

The slow-speed GSL 300 granulators feature a rotor diameter of 300 mm and are available with working widths of 400 mm, 600 mm, and 800 mm. The rotor is driven directly by a geared motor with bevel gear transmission, ensuring efficient and low-maintenance power transmission that allows for processing even demanding materials.
The low rotor speed results in minimal noise and produces regrind with little dust. The special rotor knives can be re-sharpened multiple times, eliminating time-consuming set-up work. Easy and quick maintenance is guaranteed thanks to the “Quick Snap” quick-release system.

Material is fed into the mill via a noise-reducing hopper made in sandwich construction. Depending on requirements, hoppers can be customized. The final particle size is determined by the perforation of the screen located beneath the cutting chamber. The high-quality regrind produced can be extracted or collected in bags or plastic containers.
Low and high base frames are available as options.

Applications

The slow-speed GSL 300 granulators are suitable for shredding production waste such as large parts or hollow bodies. Another area of application is their use as central granulators with smaller throughput rates. The solid construction and high torque of the GSL 300 series also enable the shredding of thick-walled parts.

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