Overview brochure wood shredders
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The first choice when it comes to shredding waste wood Shredding solutions for economic processing of waste wood

The 1st choice when it comes to shredding waste wood Reliable, robust and enduring: everything a wood shredder should be. UNTHA is the specialist for customised shredders that are tailor-made to fulfil the requirements of woodworking and timber-processing businesses. For 50 years, UNTHA has stayed true to its principle of being “the reliable brand“. This expertise makes UNTHA the uncontested first choice when it comes to shredding residual wood, for small workshops and occasional operation as well as for large-scale players in the timber industry. UNTHA has the right shredder for every...

Utilise the energy that is hidden in your waste wood Whether it’s residual hardwood or veneers - our reliable shredders make sure that your waste wood is shredded efficiently and economically. They produce homogeneous, recoverable wood chips that are ideal for briquetting or thermal recovery. Utilisation possibilities for residual wood Silo Shredding Sale of wood briquettes Heat production in a heating plant Heat production for heating buildings or drying chambers Conveying* Burning Bark mulch production for garden design Sale of bark mulch *) Conveying by screw conveyor, conveyor belt,...

The tried-and-tested UNTHA cutting systems Cut-as-you-pull Single-shaft cutting system: The single-shaft cutting system was developed for efficient shredding, a long service life of the indexable inserts and low maintenance. Together with the high-performance power train, it ensures the reliable shredding of residual wood, both with and without a pusher system. The unique shape of the indexable inserts makes for a “cut-as-you-pull” effect, which means that the unit requires less power and achieves a higher throughput. Screwed-in blade holders The screwed-in, exchangeable blade holders are...

4-shaft cutting system: The tried-and-tested, patented 4-shaft cutting system was developed specifically for tough challenges. The chopping discs are unsusceptible to non-shreddables, designed for intense, continuous operation and particularly economical due to their long service life. Compact design The shredder is easy to integrate into existing plants. Individually adaptable The cutting system may be customised to suit the input material. Slow-running cutting system The cutting system is particularly resistant towards metal non-shreddables and stands out for its low dust and noise...

The optimal solution for every application There are several shredding systems available, depending on the application, the volume of waste wood and the installation conditions. Single-shaft shredding system without pusher system Thanks to the specially developed hopper and cutting chamber geometry, the material is pulled in independently by the rotor and shredded against the cutting bar and the perforated screen. Single-shaft shredding system with horizontal pusher During the shredding process, the hydraulically operated, horizontal pusher pushes the material against the rotor, which is...

Product overview and areas of use Lr520 Single-shaft shredding system Small wood-processing operations » hard and soft wood, OSB, chipboard panels, MDF board, veneers Lr700 Single-shaft shredding system Lr630 Single-shaft shredding system For carpentry workshops » hard and soft wood, OSB, chipboard panels, MDF board, veneers SMALL PRICE, BIG PERFORMANCE For carpentry shops and joiners » hard and soft wood, OSB, chipboard panels, MDF board, veneers, cap pieces COMPACT AND SUITABLE FOR UNIVERSAL USE For the woodworking and timberprocessing industry » redominantly solid wood pieces from p the...

Lr520 Single-shaft shredding system Powerful technology, combined with the tried-andtested UNTHA quality standards, make the LR520 not just the most reliable wood shredder in its class, but also one of the most affordable. The LR520 is a single-shaft shredder that was developed especially for small wood-processing operations. Thanks to its unique, pusher-free construction, it requires very little space and is extremely low-maintenance. The powerful drive concept, combined with the triedand-tested UNTHA cutting system, ensures a highly reliable shredding process. The LR520 effortlessly...

TECHNICAL DATA Rated capacity Rotor speed Number of indexable inserts Feed opening Required suction speed Weight Workspace-specific sound pressure level LPA 1m Ø Perforated screen Throughput rates* *) Dependent on type of material and diameter of perforated screen All dimensions in mm

Your benefits at a glance Reliable, cost-effective cutting system The large rotor diameter (248 mm) and screen surface ensure a high throughput. The screwed-in, exchangeable blade holders are easy and quick to replace in case of damage (for instance caused by solid metal parts). The precise cutting gap between the cutting bar and the indexable inserts makes the shredding process particularly efficient. Unique geometry of the indexable inserts The reusable indexable inserts have a long service life. Their unique cutting geometry ensures a “cut-as-you-pull” effect that makes for particularly...

Pusher-free design The pusher-free design (hopper and cutting system) makes this unit highly Mechanical extras compact and space-saving (footprint of < 1 m²). The shredder is also » Screw conveyor Electrical extras » Control system upgrade (light barrier) Unique warranty As a proof of our excellent product quality, we are happy to offer you a 3-year warranty*. Many renowned companies already put their trust in our quality standards. *3 years or 2000 hours, depending on which value is reached first. » Integration of peripheral devices into the control system » Suction mechanism activation »...

Lr630 Single-shaft shredding system The LR630 is an absolute classic among single-shaft shredders, offering a robust design and excellent value for money. It is mostly used by carpentry and joinery workshops that have small to medium-sized volumes of residual wood. The high-performance drive concept, a powerful horizontal pusher and the tried-and-tested UNTHA cutting system make for a highly reliable shredding process. The homogeneous final product is extremely well suited for use in a wood-chip heating system or for manufacturing wood briquettes. A low rated capacity and automatic shut-off...