» General information
GSL slow speed granulators 180 Series
The slow-speed granulators in the ZERMA GSL range from 180/120 to 180/430 have been specially developed
as slow-running grinders for applications in the injection and blow molding sector.
The material to be granulated is fed via a sound-absorbing feed hopper that is
available in a range of variants to suit the application.
The slow-speed granulators of this range are mounted on either low or high level baseframes,
depending on application, and with suction trough/ bag fill chute to suit.
With these numerous options, the slow speed granulators can be tailored to an extremely wide range
of applications.
In addition to the advantages common to all slow-running grinders such as low noise characteristics
and near dust-free product, GSL 180/120 to 180/430 stand out due to their special
knife, rotor, quick-snap opening and good accessibility features.
GSL Slow speed Granulators 300 series
The granulators of the GSL 300/400 and 300/800 range are primarily intended for grinding scrap mouldings
and sprues from the injection and blow moulding sector.
In addition to all the important advantages and features described for the GSL 180 range,
the GSL 300/400 and GSL 300/800 slow running machines are especially suitable for larger mouldings
such as car door liners, bumpers or hollow bodies.
The V shaped arrangement of the staggered rotor blades holds pre-cut material in the center of the
cutting chamber. This prevents material sticking to the side walls and considerably reduces wear
on the grinding chamber walls when processing fibre and glass reinforced plastics.
The staggered rotor blades means only one blade cuts at once thus increasing the cutting torque.
» Details
Special knifes make adjustment work unnecessary
The rotor is equipped with special knives.
The curvature of the specially profiled rotor knives ensures a constant cutting circle after
resharpening, maintaining the cutting gap. Awkward knife adjustment is no longer necessary.
Downtime for knife changes is therefore reduced. The GSL stator knives can be turned 4 times
and can also be resharpened.
Sturdy rotor system
The rotor shaft has bearings at each end and the shaft diameter is designed for the largest
rotor width to enable use of a modular assembly across the width range. Staggered rotor blades
means that only one blade cuts at once thus increasing the cutting torque.
All of the machines in this range are therefore suitable for grinding more solid materials
and thicker walled sprues.
V-Rotor design
The V shaped arrangement of the staggered rotor blades holds pre-cut material in the center of the cutting
chamber. This prevents material sticking to the side walls and considerably reduces wear on the
grinding chamber walls when processing fibre and glass reinforced plastics.
The staggered rotor blades means only one blade cuts at once thus increasing the cutting torque.
Quick snap system
The new ZERMA Quick Snap System allows the lower front plate section to be easily removed
for granulator cleaning.
The lower front plate section is held in position by two sturdy lever clamps.
An electical limit switch prevents the operation of the machine when this lower front plate is removed.
The rotor outboard bearing is mounted in the fixed upper front plate section.
Good accessibility
The granulators can be safety opened in just a few steps and without the use of tools.
The feed hopper is hinged and can be pivoted back. After removing the lower front plate section
and the suction trough, the machine becomes easily accessible ready for quick cleaning
in case of colour or material change.
High safety standards
All granulators are manufactured to current European Union machine requirements and are fully CE certified.
Safety of the machines is guaranteed by, for example, electric limit switches...
» Dimensions and Specifications
GSL 180 series
| Type | 180/120 | 180/180 | 180/300 | 180/430 |
|---|---|---|---|---|
| rotor diameter (mm) | 180 | 180 | 180 | 180 |
| rotor width | 120 | 180 | 300 | 430 |
| cutting chamber opening (mm) | 270 x 120 | 270 x 180 | 270 x 300 | 270 x 430 |
| Number of rotor knives | 12 | 18 | 30 | 42 |
| Dimensions | Low frame models | |||
| A (mm) | 520 | 520 | 520 | 520 |
| B (mm) | 850 | 910 | 1030 | 1160 |
| C (mm) | 450 | 450 | 450 | 450 |
| D (mm) | 600 | 600 | 600 | 600 |
| High frame models | ||||
| A (mm) | 440 | 440 | 440 | 440 |
| B (mm) | 800 | 800 | 860 | 990 |
| C (mm) | 650 | 650 | 650 | 650 |
| D (mm) | 1500 | 1500 | 1500 | 1500 |
GSL 300 series
| Type | 300/400 | 300/800 |
|---|---|---|
| rotor diameter (mm) | 300 | 300 |
| rotor width | 400 | 800 |
| cutting chamber opening (mm) | 400 x 400 | 800 x 400 |
| Number of rotor knives | 33 | 66 |
| Dimensions | ||
| A (mm) | 900 | 1410 |
| B (mm) | 980 | 1070 |
| C (mm) | 700 | 700 |
| D (mm) | 940 | 1050 |
