S:GRAN

S:GRAN

The universal solution for industrial plastic waste

Shredder-feeder-extruder combination

The newest generation of this high-efficiency recycling technology provides a significant increase in energy efficiency and additional improvements to output rate for sustainable plastic waste processing.

Description

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.

At a glance

  • Simple, material-conserving processing of industrial plastic waste of any type
  • Patented single-shaft shredder/ extruder combination from the inventor
  • Output rate up to 800 kg/h (1,760 lbs/h) depending on type
  • Switching on and off by a single push button
  • Quick and easy start-up and shut-down at any time
  • Small footprint saves space
Extruder screw ø [mm]
Shredder width [mm]
max* kg/h
max* lbs/h
S:GRAN 65-50
65
500
220
480
S:GRAN 65-70
65
700
250
550
S:GRAN 75-50
75
500
250
550
S:GRAN 75-70
75
700
300
660
S:GRAN 85-70
85
700
400
880
S:GRAN 95-70
95
700
500
1100
S:GRAN 105-100
105
1000
600
1320
S:GRAN 125-100
125
1000
800
1760

* Output values for LDPE according to NGR company standard, depending on material and quality.
In addition, NGR provides all the equipment for conveying pellets such as blower, pipes, cyclones and much more.

More materials: PA, PC, PPS, ABS, EVA, bioplastics, blends, …

Technology

The operating principle of S:GRAN

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

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.

Dump and run operation

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.

Extruder screw

Extruder screw

Extruder screw

Specially developed for the challenges of recycling, the universal extruder screws provide optimum melt homogeneity and process material efficiently with minimal loss of physical properties. For special requirements, our expert NGR engineers develop custom-tailored screw geometries.

Control unit S:GRAN

Control unit

Control unit

All equipment functions from feeding to pelletizing are controlled automatically from the easy-to-read NGR touchscreen. Recipes are managed in the operator control unit, which increases traceability, provides ease of use, and ensures equipment parameters are set properly.

High-quality pellets

High-quality pellets

Pellet size

In addition to high quality, the uniform pellet size also provides for homogeneous mixture in new material. NGR thus plays an indirect role in ensuring consistent quality in the final product.

Add-Ons

  • Feed-in

  • Degassing

  • Pelletization

  • Filter

  • Peripherals

  • Test equipment

Feed-in

Air separator

Air separator

Air Seperator

The air separator is used in the production process to continuously recycle film edge trim, which is fed pneumatically into the machine. With “inline operation,” further material handling is unnecessary, and the NGR recycling machine is now fully automated.

Roll feeder

Roll feeder

Roll Feeder

With variable feed speed, roll scrap is treated in a process-controlled manner. The virtually unmanned machine is fed continuously. The roll feeder can be operated at the same time with other types of feeding (e.g. conveyor belt).

Conveyor belt

Conveyor belt

Conveyor belt

The conveyor belt transports the feed material through a metal detector into the feed hopper. The belt is stopped automatically, if metallic matter is detected in order to remove it.

Dosing unit for additives

Dosing unit

Dosing unit

Additives such as color pigments, CaCo3, compatibilizers can be added to the material flow in a process-controlled manner. Dosing systems for pellet and/or powdered additives are available.

Degassing

Single venting

Single venting

Single venting

Designed for light printing and low humidity. The vacuum degassing system includes a vacuum pump and is connected to two venting ports on the extruder.

Double venting

Double venting

Double venting

Designed for plastics printed, for example, on all surfaces and/or moist plastics. The simple venting unit can be supplemented by another modular unit with two venting openings and an additional vacuum pump.

Heavy duty vacuum pump

Heavy duty vacuum pump

High-performance vacuum

In addition to the modular venting unit, a combination of water ring pump and high-performance vacuum pump runs in order to increase the vacuum performance (e.g. PET processing).

Combined venting

Combined venting

Combined venting

For damp materials, e.g. after washing, combined venting unit is used, which consists of an atmospheric and vacuum degassing unit.

Vacuum pump with closed water circuit

Vacuum pump with closed water circuit

Vacuum pump with closed water circuit

Each venting combination can be equipped with a closed water circuit. The fresh water consumption at the vacuum pump is thereby reduced significantly.

Pelletization

HD pelletizer, hot die-face pelletizer

HD pelletizer

Hot-die Waterring Pelletizer (HD)

For thermoplastics with a higher viscosity. The melt exits through the wear-resistant die plate, and is knocked off by the pelletizer blades. The pellets cooled in the water ring are flushed out, dried in the centrifuge and discharged. By adjusting the blade pressure, pelletizer blades provide a long service life; replacement is quick and easy.

Strand pelletizer

Strand pelletizer

Strand pelletizer (SP)

For low-viscosity melts. The melt emerges from strand nozzles, is cooled in a water bath, dried by means of a fan and cut to the desired length in the pelletizer. The result is cylindrical, dust-free pellets with excellent mixing properties.

Automatic strand pelletizer

Automatic strand pelletizer

Automatic strand pelletizer (A-SP)

In addition to the benefits of the SP, the A-SP option offers the added convenience of fully automated start-up. The strands are transported automatically by a water slide to the pelletizer, and the pellets are dried in a centrifuge.

Under water pelletizer

Under water pelletizer

Underwater pelletizer (UWP)

For difficult-to-process (e.g. sticky) polymers or thermoplastics with a very high melt flow index. The melt emerges from the die plate and is knocked off by the pelletizer blades. The whole process takes place under water. In the centrifuge, the pellets are separated from the process water and dried.

Filter

Manual screen changer

Manual screen changer

Manual screen changer

For clean, in-house production waste.  Using the manual lever, two screens can be swung out alternately to allow for cleaning of the melt stream. The process is discontinuous, because the machine has to be switched off to change the screen.

Double piston screen changer

Double piston screen changer

Double-piston screen changer

For light impurities. The hydraulically operated double-piston screen changer allows continuous filtration of the melt. This allows a screen change without process shutdown.

Backflush screen changer

Backflush screen changer

Back-flush screen changer

For heavily contaminated materials. The hydraulically operated double-piston screen changer filters the melt in a process-controlled and continuous manner. The integrated backwash device automatically cleans the screens. The number of back-flushes and the related service life of the screens depend on the degree of contamination of the material.

4K Backflush screen changer

4K Backflush screen changer

4K back-flush filtration

For heavily contaminated materials. In contrast to the standard backflush screen changer with 2 screen cavities, this system is equipped with 4 screen cavities. The double filtration surface with the same frame size results in a longer filter life.

Automatic band melt filter

Automatic band melt filter

Band melt filter

For high contamination at high throughput rates. With the lowest melt losses and low filter costs, fully automatic operation ensures excellent filtration results. It is used particularly for post-consumer plastics.

High performance melt filter

High performance melt filter

High-performance melt filter

For heavily contaminated materials with low viscosity. The extraneous material is trapped by a rotating filter drum and removed by the rotation of the drum to a wiper. This separates the extraneous material from the filter and leads it directly to a discharge screw.

Peripherals

Customized solution for film rolls

Customized solution for film rolls

Film Manufacturing

Best practise in France

Customized solution for decored film

Customized solution for decored film

Film Manufacturing

Best practise in Spain

Customized solution for containers and boxes

Customized solution for containers and boxes

Injection-molded boxes

Best practise in Germany

Customized solution for pipe production

Customized solution for pipe production

Pipe Manufacturing

Best practise in Belgium

Test equipment

Flow scale

Flow scale

Flow scale

The throughput scale is integrated in the machine control system and displays the current production output in kg/h (lbs/hr). The data can be logged in a BDE system.

Gas control unit

Gas control unit

Gas control unit

This unit provides quality control by continuously measuring pellet density. Based on preset parameters, the unit determines whether to switch the gates to the second choice or to scrap when this value falls below a setpoint.   Monitoring is inline and integrated continuously in the production process.

Online viskosimeter

Online viskosimeter

Online Viscometer

For continuous melt viscosity measurement. Melt is taken from the production extruder, the viscosity is measured, and then the melt is returned to the extruder.
Based on the differential pressure across the capillary, the viscosity of the material (IV value, MVR) is determined by means of a stored recipe.

Gallery

Images

Solid engineering, high-quality materials and precise execution ensure a long service life for equipment.

maintenance-friendly access to moveable parts allows you to quickly change material, efficiently disassemble and assemble wear and tear parts, and minimizes downtime.

The solidly-constructed, low-speed shredder combined with hydraulic-driven pusher also provides efficient shredding of bulky plastic scrap.

Testimonials

We run the machine since 2014, we recycled 8500 tons of waste and we changed shredder knives only one time. It shows that machine has good quality.

Flora Plast

Hamit Ercan, General Manager
Flora Plast, Turkey

NGR´s excellent output efficiency for our pipe recycling is far above their guaranteed value, that´s why we decided to buy a second machine from NGR for our film recycling, as well.

Testimonial Imece

A.Samed Ciftci, Operations Manager
Imece, Turkey

NGRs are really pleasant and strong machines to work with. After just 15 minutes of training anybody can handle an NGR. The service is excellent at NGR.

Spunchem

Rishi Nunkumar, Waste General Officer
Spunchem, South Africa

Support

Our all-round service – satisfaction included

Excellent technology calls for excellent service. Our 100% commitment to flawless service ensures maximal cost efficiency and minimal downtime.

Our services

  • Service hubs for the fastest possible processing of all maintenance and repair work
  • Spare parts centers for flexible responses to strong markets
  • High spare parts availability thanks to particularly high stock levels in Europe and North America
  • Worldwide extruder screw production for short-term production or repairs
  • Easy ordering of parts in our webshop
  • Starter and spare parts packages for every new machine

S:GRAN

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NGR Applications & Solutions

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Webshop

Visit our webshop and benefit from even easier procurement of NGR spare parts.

Visit shop

Put us to the test!

Your plastic waste is tomorrow’s raw material.

In our test centers, we will demonstrate to you the performance of NGR recycling machines using your raw materials. We’ll be pleased to show you the benefits in person.

Contact us
S:GRAN Post Industrial Recycling Machines - NGR