Your advantages at a glance
- Primary shredder with a throughput up to 70 t/h   
- UNTHA Eco Drive for very low operating costs
- Sturdy machine design
- Easy to maintain and service

Complete enquiry
 Stationary waste shredder SRF RDF | XR3000

High capacity primary shredder for volume reduction and alternative fuels production

The XR class is a powerful waste shredder that can serve as a primary shredder for volume reduction or as a single-step shredder for the production of alternative solid fuels (ASF). This flexible and versatile waste shredder can process a variety of waste streams such as commingled waste, C&I waste, C&D waste, MSW, bulky waste, ragger wire, rolled goods, carpets or wood waste.

Powerful waste shredding machine for every application

The XR class is a very energy-efficient low speed, single-shaft shredder that was specifically designed for shredding a wide range of materials like commingled waste, untreated household (MSW), industrial and commercial (C&I) waste, C&D debris as well as waste wood. It can be used as a primary shredder in a comprehensive system or simply as a single-step shredder and meets the high standard for the preparation of RDF/SRF. These alternative fuels are ideal for the utilization in calciners or main burners of cement kilns or for power plants. 

C&D waste shredder or high capacity alternative solid fuels shredder

In order to meet your requirements, the XR primary shredder can be equipped with a ripper, cutter or X-cutter system. In combined with the patented XR screen bar system or with different perforated screens, a controlled fraction size of 400 to 30 mm is guaranteed. Depending on the material property and screen size chosen, throughput performance is between 10 t/h and 70 t/h. The rotors are protected against wear by welded-on Hardox plates and are particularly resistant to abrasive materials.

Energy-saving drive system

Thanks to XR’s low and class leading operating performance, the primary shredder particularly stands out. The revolutionary UNTHA Eco Drive concept ensures up to 50% less energy consumption compared to typical electro-hydraulic drive options. The cutting-edge synchronous motors provide maximum efficiency, making the UNTHA Eco Drive one of the most energy efficient drive systems on the market. In addition, maintenance costs are minimized as couplings, belts, hydraulic pumps and shafts stubs are no longer required.

Our experienced project engineers will be happy to help you choose the best size reduction solution for your project. 

XR class applications:

  • Commercial and industrial waste (C&I)
  • Household waste (MSW)
  • Construction & demolition waste (C&D)
  • Woody C&D
  • Bulky waste
  • Wood waste
  • Scrap wood
  • Compressed plastic bales 
  • and many more


More details about the primary shredder is available below in the downloads section

"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.


The "Cutter" cutting concept is a "cutting system" for material sizes ranging from 130 mm 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 "cutter system"..

We don't let anything burn. UNTHA offers fire protection systems from leading manufacturers to protect your investment.  Optical monitoring of the shredder discharge can activate the fire extinguishing system within milliseconds of its first detecting a spark.

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.