Your advantages at a glance
- For particularly difficult applications
- Low maintenance and high availability
- Low operating costs

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RS150 heavy duty industrial shredder  | UNTHA

The smart power package for exceptional requirements

The RS150 is the largest UNTHA heavy duty four-shaft shredder and has been developed for especially difficult applications where a high throughput performance, high availability and low maintenance cost are all required.

The highlight of this unique innovation is the newly designed UNTHA Eco Drive. The dynamic and energy-efficient drive concept ensures that the cutting inserts are stopped immediately if foreign objects are pushed in so as to prevent the cutting tools from being damaged. Moreover, this drive permits frequent reversal which is particularly necessary when shredding difficult materials.

The throughput performance can always be optimally configured for the material to be shredded with the variable speed setting option for the cutting shafts. In contrast to high-speed systems (asynchronous motors), these machines do not require wearing parts such as couplings, belts or shear pins, which reduces the machine's vulnerability.

The large RS series can also be equipped with additional separating and conveyor technology, customized hoppers and substructures and control expansions. 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 tyres
  • Hazardous waste
  • Spring mattresses
  • Pulper ropes
  • and many more

More details available below in the downloads section

Four-shaft shredding system

As the inventor of the four-shaft cutting system (patent no. 319535), we have kept developing these products and continually adapted them to fit market needs. Due to their sturdy design and high productivity, four-shaft shredders are used for materials that are difficult to shred. Thanks to the special layout of the cutting shafts, the pre- and re-shredding occurs in just one process step.

Test center

TIP: Free field test at the UNTHA test center

Do you want to be 100% certain that we will configure the optimal shredding system tailored exactly to your application case and material? No problem! We will be happy to help you test your material in our facilities under real-life conditions!

Test centre


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 industrial shredder.

A ram device supports the industrial 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.