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Shredding Machinery Solutions

Innovation in size reduction – Made in Austria

True to our slogan we have been developing and manufacturing  innovative and tailor-made shredding solutions for wood, plastics, tyres, rubber, metals, waste, alternative fuel sources, electronics scrap, dangerous substances, biological waste, files, data and paper for over 30 years.


The company was established in 1970 by Anton Unterwurzacher and its headquarters are in Kuchl near Salzburg. This international business has distributors in over 40 countries enabling us to guarantee customers benefit from the speedy resolution of their problems thanks to rapid service provision and local spare part supply.

Our entire range of services and products draws on the very latest technology and the highest possible quality standards. Superior manufacturing standards and a comprehensive range of rapid response support services guarantee the smooth running of your machinery and operations due to the constant availability of our plants and machinery. As we produce the vast majority of units and components ourselves customers benefit from very short delivery times. All shredders are manufactured at the 4000 m² production plant in Kuchl, Austria.





Our team of experts supply technical know-how, commercial expertise and the necessary hands-on experience to ensure our customers’ highly complex shredding requirements are met to their absolute satisfaction; every time.

Over 8000 completed projects say it all!

Company Services

  • Wood Shredders
  • Waste Machinery Manufacturer
  • Service Contracts
  • Recycling Machinery Manufacturer
  • Organic Waste Shredders
  • Maintenance
  • Installation
  • Industrial Shredding Machinery

Untha Shredding Technology

Untha Shredding Technology

Moldanstraße 141

A-5431 Kuchl


Tel: +43 6244 701 60

Fax: +43 6244 701 61

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Company Articles
Industrial Second Stage Shredder
Nemetz AG Choose Untha Technology
First UK installation for UNTHA TR Series shredder at new HW Martin RDF facility
When HW Martin required a state-of-the-art RDF facility, they chose OKLM to design and build the plant and the revolutionary new UNTHA TR Series shredder, supplied by Riverside Waste Machinery, to fulfil their high-performance shredding requirements.
New EBS system commissioned in England with Austrian know-how
The British business group H.W. Martin has invested over 2 million pounds in a new processing plant in Northampton for the production of high-calorie alternative fuels.