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NGR - Model S:GRAN -Shredder-Feeder-Extruder Combination System
The S:GRAN is the latest development in our successful shredder-feeder-extruder combination, with over 1,200 patented installations worldwide since continuous production began in 1997.
S:GRAN is the perfect solution for processing scrap plastic materials of a variety of types, materials and shapes created by industrial processes. Even thick-walled scrap plastic materials as well as fibers and textiles can be processed without additional pre-shredding.
The plastic recycling technology of S:GRAN meets even the highest standards for efficiency and achieves zero- waste production (all production waste is fed back in) thanks to shredding that conserves an outstanding amount of material as well as optimally guided extrusion.
- Simple, high quality processing of post industrial waste of any type
- An evolution of our patented single-shaft shredder/extruder combination.
- Throughput rates up to 900kg/h
- minimal operator interaction, one button, easy start-up and shut-down
- NXT design platform, flexible, modular construction with multiple options
- Faster ROI, and lower OpEx with the latest generation 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.
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.
Large, thick or bulky waste can be processed without pre-shredding as long as pieces fit into the hopper opening.
The control system provides for smooth start-up of equipment components. Restart after unplanned shutdown in less than two minutes with full hopper and full extruder.
The material level in the hopper is constantly measured and the feed is regulated accordingly. Discontinuous filling of the conveyor is possible – the NGR control unit does the rest.