Waste wood is a precious resource that is available in large volumes and may be used either for material recycling or energy production, depending on the quality grade. The rising cost of waste material disposal and a growing consciousness for the environment also contribute to the increasing importance of waste wood recycling. The term “waste wood” includes all woods and wood-based materials that have come to the end of their product lifespan and are thus considered waste.

We offer you innovative, highly economical single-step shredding concepts for the recovery of your waste wood, upon request also with metal separation. Units are available as stationary or mobile versions. Low operating costs, extremely low fines and foreign object protection paired with high performance are the key factors in the success of UNTHA waste wood shredders. Minimised dust and noise levels benefit your employees, your neighbours – and ultimately also the environment!

Processed for thermal utilisation or recycling

During the recovery process, the waste wood is shredded and separated from foreign matter such as metal parts. The resulting wood chips are either recycled or utilised for energy production, depending on their classification grade. Recycled waste wood is often used as raw material for the production of chipboard or other wood-based materials. In case of thermal utilisation, the wood chips are used as high-grade fuel in biomass or thermal power stations.

We offer reliable shredders with a throughput of up to 40 t/h for waste wood recovery. Our units are suitable for a wide range of applications.  

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Demolition wood includes all timber from interior and exterior fittings, constructional timber and all sorts of mixed ranges. Our innovative XR waste wood shredder is particularly well-adapted for the shredding of waste and demolition wood.  

Impure timber from construction sites is no problem at all for our shredding solutions. Thanks to its hard-facing, the rotor is particularly resistant towards abrasive materials, making it suitable for the processing of beams, boards, formwork, treated solid wood or mixed ranges.  

Our machines are also suitable for highly sophisticated applications such as the shredding of root stock, driftwood, green waste and waste wood from gardening and landscaping applications. The efficient removal of foreign matter reduces downtime to an absolute minimum.

Our waste wood grinders will certainly “make a meal” out of sorted wood from bulky waste. Even unwieldy parts will easily fit into the large hopper and will be reliably captured and shredded by the rotor teeth.

Whether we are talking about pallets, shipping crates, fruit crates or even cable reels – we have the right shredder for you, depending on your volumes and required throughput capacity. 

Our shredders are especially well suited for shredding all types of board materials. Both particle boards and MDF boards are shredded reliably and efficiently. We can always offer a suitable solution depending on the board size and the desired throughput rate and particle size.

Shredding thin veneers appears to be very easy at first glance. but the correct machine configuration is a decisive factor here. With our optional profiled ram face spiky shaped pusher, UNTHA shredders are perfect for shredding veneer. 

Shredding pallets with metal inclusions (nails, screws, etc.) are no problem at all for the robust UNTHA cutting unit. After shredding, the metal pieces can be easily removed with a magnet. We offer customized comprehensive solutions for shredding pallets: From a shredder and discharge auger to metal separation - all from one source.

Two shredding systems are available for shredding bark. Our rotary shears work especially well with wet bark, while our LR single-shaft series is the preferred system for dry and hard bark.

UNTHA rotary shears are well proven in the shredding of long wood splinters. Thanks to the special cutting unit configuration, the splinters are automatically pulled into the machine and reliably shredded. Our rotary shears are particularly sturdy and have exceptionally long service life.

A sturdy and reliable cutting system is required for shredding solid wood. We offer shredding machines that are tested and proven in processing all types of solid wood.

Shredding cap timber is quite a challenge for shredding machines. The machine needs to be particularly robust and sturdy. We offer shredding solutions specifically designed for this "very hard" application.

Recommended wood shredders

XR mobil-e

Power: 113 - 264 kW | 152 - 354 hp
Cutting chamber width: 2,960 mm | 116.5 in


 Stationary waste shredder SRF RDF | XR3000
Power: 65 - 264 kW | 87 - 354 hp
Cutting chamber width: 1,960 / 2,960 mm | 77 / 116.5 in


RS30-40 Holzzerkleinerer | UNTHA
Power: 11 - 37 kW | up to 60 hp
Cutting chamber width: 450 / 750 / 960 mm | 18 / 30 / 38 in


Power: 18 kW | 24 hp
Cutting chamber width: 1324 mm | 52 in


Power: 37 kW | up to 60 hp
Cutting chamber width: 1.000 / 1.400 mm | 39 / 55 in


LR700 Holzzerkleinerer | UNTHA
Power: 22 kW | up to 35 hp
Cutting chamber width: 700 mm | 27 in


Power: 18,5 kW | up to 30 hp
Cutting chamber width: 624 mm | 25 in


Power: 11 kW | 18 hp
Cutting chamber width: 514 mm | 20 in