Your advantages at a glance
- Up to 15 t/h < 30 mm and up to 30 t/h < 80 mm   
- Very low operating costs thanks to UNTHA Eco Drive
- Sturdy machine design
- Easy to maintain and service

Product enquiry
Static waste shredder RDF SRF | XR3000

Flexible waste shredder for all kinds of waste streams

The XR class is a high-performance solid waste shredder for the size reduction of different waste streams like C&I waste, MSW, bulky waste, pulper ropes, rolled goods, carpets or wood waste. The slow speed shredder is often used as a pre-shredder / primary shredder in a comprehensive system or simply as a single-pass shredding concept to produce alternative fuels. The robust design enables even untreated material containing unshreddable items to be processed in one pass. These items can be removed quickly and easily using the impurity removal system, which keeps downtime to a minimum.

Customized slow speed shredding solutions: MSW shredder, C&I shredder or waste shredder for different material

To fulfill your individual requirements, the XR class is available with a ripper, cutter or X-cutter system. The combination with our patented XR screen bars or different-size screen systems makes a fraction size from 400 to 30 mm possible. The final throughput will depend on the type of material and the screen diameter and ranges from 10 t/h to 70 t/h.

The high torque and the machine’s perfectly aligned cutting system enable the material to be fed directly into the machine without pre-shredding. A load-dependent speed control ensures a constant throughput rate.

Throughput rates you can expect by single-pass processing of different materials:

  • Commercial and industrial (C&I) waste: 25 t/h < 80 mm
  • Municipal solid waste (MSW): 70 t/h < 300 mm
  • Bulky waste: 30 t/h < 300 mm
  • Waste wood: 45 t/h < 100 mm

Low operating costs

Minimal operating costs paired with maximum performance make this waste shredder a strong partner that stands out for its forward-thinking technology, such as the UNTHA Eco Drive concept that lowers energy consumption by 75% compared to standard electro-hydraulic drive options.

State-of-the-art synchronous motors achieve maximum efficiency, making the UNTHA Eco Drive one of the most energy-efficient drive systems on the market. In addition, maintenance costs may be reduced to a minimum as the unit is free from pulleys, hydraulic pumps and shaft stubs. Where higher throughputs – and therefore also higher rotor speeds – are required, there is the option of integrating a safety coupling that will separate the rotor from the drive if a foreign object is detected.

All rotors are wear-protected thanks to welded Hardox plates, making them particularly resistant against abrasive materials. Our experienced project engineers are at your disposal to assist with the planning and implementation of your project.

Your benefits at a glance:

  • Robust shredder with high degree of resistance to unshreddable items
  • Effective removal system for unshreddable items
  • Homogeneous, defined fraction size through screen bars or a perforated screen
  • Slow speed shredder
  • Low noise and dust emission (noise level < 80 dBA)
  • Low energy costs due to UNTHA Eco Drive
  • Easy to service and maintain

Customer Service for maximum reliability

For us, reliable customer support is a key priority. All of our shredders are supplied with a professional customer support service.

Do you want to test the solid waste shredder machine?

Do you want to see the XR's capacity and efficiency first hand? No problem. We give you the chance to comprehensively test out our XR mobil-e on your premises. Contact us now and schedule a demonstration at: info@untha.com or call us at: +43 (0) 6244 7016

Areas of application XR class:
  • Commercial and industrial waste (C&I) 
  • Municipal solid waste (MSW)
  • Bulky waste
  • Waste wood; grades 1 to 4  (e.g. construction timber)
  • Light fraction and pre-sorted plastic waste
  • Pre-processed plastic bales
  • Pulper ropes
  • and much more!

More details about the solid waste shredder is available below in the downloads section!

RC cutting system

The RC cutting system was specially developed for the coarse pre-shredding of different material flows and for high throughput rates of up to 70 t / h. The unique tooth shape ensures that the material pulls in aggressively. Knives and stator bar can be welded again at the end of life.

Achievable fraction sizes: 100 to 300 mm


Our cutting system is equipped with cutters, thus allowing for output material sizes of 130 to 50 mm.The exact material size is defined by a perforated screen. An internal pusher shoves the material against the rotor with the cutting inserts which can be used 4 times. Thanks to the welded on Hardox plates the rotor is protected against wear and therefore has a very long service life.

X-Cutter System

Our cutting system is equipped with cutters, thus allowing for output material sizes of 80 to 30 mm.The exact material size is defined by a perforated screen. An internal pusher shoves the material against the rotor with the cutting inserts which can be used 4 times.

Reference: FCC Environment Ing. Johann Handler (Site Manager)

Clever and reliable solutions like the XR3000 are the most economical on the long run..."

Reference: Delete Jaakko Kouhia (Production Manager)

“UNTHA has worked collaboratively with our team in Tampere to deliver an RDF production system that we are now very pleased with. It is flexible and configurable, enabling us to quickly adapt our operations to suit customers’ evolving particle size or capacity requirements, and the energy efficiencies we have witnessed, make the XR a very financially and environmentally sound investment. I wouldn’t hesitate to recommend this technology to other waste management firms worldwide.”

Reference: Zion Waste Management Ms. Geumju Kim (President)

"Now that our new SRF plant is up and running, with state-of-the-art configurable technology in place, the next step is to investigate relationships with different customers. We can satisfy varied specifications, and look forward to improving South Korea’s resource agenda."


The adjustable main cutting bar offers you the option to adjust the cutting opening. The shredder can be optimally adjusted for the material to be shredded and the required discharge fraction.

This option is only available for the &quot;cutter system&quot;..

We don't let anything burn. In terms of fire protection, we rely on the expertise of leading providers of fire-extinguishing systems.

A service platform provides you with an easy, secure and ergonomic access to the machine in the event of servicing or maintenance.

We recommend that our customers use a control room to protect the electric control. Thanks to the positive pressure, the electric control cabinet and the frequency transformer are protected against dirt and dust, which increases their service life and minimizes their vulnerability.

We offer different hopper shapes that are exactly adapted to your infeed type. Regardless of whether you need a hopper for a wheel bearing infeed or a hopper with a grabber infeed – we will always have a suitable solution available.

In terms of separating metallic iron-containing parts from the shredded material we collaborate with leading manufacturers in the separation technology field. The overbelt magnet is installed above the discharge conveyor belt and reliably separates the iron-containing parts from the output material.

We offer suitable infeed, discharge and incline conveyor belts for our shredding machines, thereby ensuring smooth material transport.