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- For particularly difficult applications
- Low maintenance and high availability
- Low operating costs

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RS150 heavy duty industrial shredder  | UNTHA

Smart power for exceptional performance

The RS150 is the largest UNTHA four-shaft industrial shredder and was developed for especially difficult applications where high throughput, high availability, and low maintenance costs are all required.

The highlight of this unique industrial shredder is the newly designed UNTHA Eco Drive. The dynamic and energy-efficient drive ensures that the cutters stop immediately if foreign objects are encountred to prevent the cutters from being damaged. Additionally, this drive permits frequent reversals often necessary when shredding difficult materials.

The Eco Drive variable speed option permits the shredder speed to be continually adjusted for optimum performance and throughput.  High availability and low maintenance costs are ensured by eliminating belts, clutches and sheer pins.

The large RS quad shaft series can be equipped with additional separating and conveyor technology, customized hoppers and substructures, and many control options. We offer comprehensive solutions from one source!


Large RS series applications:

  • FE-containing metals
  • FE-free metal scrap
  • Electronic scrap
  • Cable
  • Paper and cardboard
  • Plastics
  • Truck and passenger car tires
  • Hazardous waste
  • Spring Mattresses
  • Ragger Tails
  • and many more

More details available below in the downloads section

Four-shaft shredding system

As the innovator of the four-shaft cutting system (patent no. 319535), we have improved these products continuously and adapted them for new markets and applications. Due to their rugged design and high productivity, four-shaft shredders are often used for difficult to shred materials. Thanks to the unique design, both initial and final shredding occurs in just one step.

Test center

TIP: Test your material at the UNTHA test center Do you want to be 100% certain that you get the best UNTHA shredder for your application and material? No problem! We will be happy to help you test your material in our facilities under real-life conditions!

Test center


We are also happy to provide infeed and discharge conveyor belts. These will be optimally adapted to the on-site conditions and the desired throughput performance of the shredder.

A ram device supports the shredder when processing bulky material. At the same time the ram device increases the machine's throughput.

The central lubrication system supplies all important bearing points with sufficient lubricant which results in a considerable reduction of maintenance effort for the operating personnel and of machine downtimes.

We are able to adapt the hopper exactly to your needs depending on the infeed. Regardless of whether you need a particularly wide hopper for a wheel bearing infeed or a hopper with flip-top lid. We offer customized solutions.