Shredder-Feeder-Extruder combination S: GRAN

Technology

Plastic waste is processed by a heavy duty shredder operating at low speed for gentle size reduction and minimal loss of material properties. in this process, a hydraulic ram pushes the material into the shredder drum.

The shredder and extruder drives are controlled separately and automatically, based on load.

After shredding, the material is fed directly into the extruder.

In the extruder, the material is brought to a uniform melt temperature and degassed, if necessary.

All the components are positioned in close proximity to prevent oxidation of the material and to make optimal use of heat from the shredding process

This patented combination of shredder, feeder and extruder is a feature of all units in the S:GRAN line.

One-Step technology

In a single process step, the slow-turning shredder blades grind up the plastic waste and the shredded material is then fed continuously to the extruder.

Process bulky plastic scrap

Large, thick or bulky waste can be processed without pre-shredding as long as pieces fit into the hopper opening.

One-button automatic on/off control

Convenient start-up and shut-down
Restart after unplanned shutdown in less than two minutes with full hopper and full extruder
The control system provides for smooth start-up of equipment components

Dump and Run operation

The material level in the chute is constantly measured and the feed is regulated accordingly. Conveyor can be loaded intermittently – the rest is handled by the NGR control unit