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

Efficient solid waste shredder for coarse and medium-sized C&I waste, waste wood and pulper ropes

The XR solid waste shredder is a high-performance shredder that is utilised as pre-shredder or single-stage shredding solution in the production of refuse derived fuels (RDF). It is both low maintenance and easy to maintain with a long service life. The smooth operation of your system is ensured with replacement parts available within 48 hours and the option for remote troubleshooting!

The XR class is a very energy-efficient and low-speed, single-shaft shredder that was specifically designed for shredding coarse and medium-sized municipal solid waste (MSW), commercial and industrial waste (C&I) as well as for recycling scrap wood and bulky waste. It is often used as a pre-shredder in a comprehensive system or simply as a single-stage shredding concept to produce refuse derived fuel (RDF) for the calciner. 

Size reduction with low operating costs

Thanks to minimum operating costs at maximum performance, the waste shredding machine is a real innovation that particularly stands out with its smart technology. The revolutionary UNTHA Eco Drive concept ensures up to 50% less energy consumption compared to commonly available electro-hydraulic drive options.

The utilisation of cutting-edge synchronous motors achieves a maximum level of efficiency, which makes the UNTHA Eco Drive one of the most energy efficient drive systems on the market. In addition, maintenance expenditures can be reduced to a minimum as coupling, belt, hydraulic pumps and shaft stub are no longer required.

Flexible waste shredder for different material

In order to meet individual customer requirements, the pre-shredder can be equipped with a ripper or a cutter system to shred different materials like MSW, C&I and waste wood. In combination with the patented XR screen bar system or with different perforated screens, this ensures a specified fraction size of 400 to 30 mm. Depending on the material property and perforated screen diameter, throughput performance is between 10 t/h and 70 t/h.

The rotors are protected against wear by welded-on Hardox plates and are thus particularly resistant to abrasive materials.

Our experienced project engineers will be happy to help you plan and implement your project.

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


XR class applications:

  • Commercial and Industrial waste (C&I)
  • Household (MSW)
  • Residual timber
  • Scrap wood (such as construction timber,...)
  • Compressed plastic bales 
  • Bulky waste
  • and many more 

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

"Cutter" cutting system

Our cutting system is equipped with cutters, thus allowing for output material sizes of 120 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. Thanks to the welded on Hardox plates the rotor is protected against wear and therefore has a very long service life.

"Ripper" cutting system

The "Ripper" cutting concept is a "ripping system" for coarse shredding of material sizes ranging from 400 mm to 100 mm. The exact material size is defined by screen bars or a perforated screen. The teeth of the ripper can be used 2 times and can be welded onto the outside of the machine after their service life has expired. Thanks to the welded on Hardox plates the rotor is protected against wear and therefore has a very long service life.

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."

Technical data


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 and fire-extinguishing systems, we rely on the expertise of leading providers of fire-extinguishing systems. A camera monitors the discharge conveyor belt and is able to activate the fire-extinguishing system within milliseconds in the event of spark formation.

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.