Preparing natural fibres

Efficient solutions for wood grinding with hammer mills

Tietjen and timber industry

Our hammer mills crush wood what and how you want.


Whether it’s forest or industrial residual wood, whether it’s dry or wet wood, whether it’s large or small quantities, whether it’ s frequently or seldom varying input material: Tietjen hammer mills make residual wood recycling more efficient.

Our grinders for residual wood recycling can be used in many areas:
In the field of energy production (wood shavings), in the construction industry (insulation materials), in animal husbandry (bedding material), in logistics (packaging accessories and cardboard packaging) or in food production (stabilisers, filling and release agents). We understand the requirements and objectives of the timber industry and always have the right hammer mill for every input material. We are able to meet every requirement thanks to our four own series and more than 40 model variants. Benefit from our experience in waste wood recycling.

The use of biomass or waste wood as a substitute fuel in coal-fired power plants is gaining enormous importance in the energy transition. You can find out more in our article Waste wood as a substitute fuel and alternative to coal.

Wet and dry

Grinding in the timber industry

Raw materials are cut, torn or crushed to obtain fibres, depending on their use. Product qualities differ according to grain size or fibre length. It is often the case that lignin-protected components can only be made accessible for material or energetic utilisation if they have been appropriately crushed.  Tietjen supplies machinery and complete systems for the processing of husks, stalks, straw or grown wood, whether they are dry or “freshly cut” wet wood with a high water content.

The wide chamber mill W is used in the grinding of fibers and wood with a residual moisture of 60%.

Weitkammermühle W
Tietjen wide chamber wet wood mill (W series)
Weitkammermühle W

For the size reduction of dry wood chips, the high-speed mill of the VDK series can be used.

VDK Mühle
High speed mill VDK
VDK Mühle

If it may be a little more, the Tietjen large chamber hammer mills GD and GDL are the right choice.

Hammer mills: Large chamber
Bild Karsten Frese

Tietjen mill technology in wood recycling

“Our W series keeps your costs to a minimum. Our wide-chamber mills crush wet wood into pellets in just a single step.”

Karsten Frese, Sales at Tietjen

Tietjen systems engineering

Our benefits in the timber industry

Tailor-made solutions: from the mill through to the final system

We configure the requirements for your system together with you and your team. Which raw materials are used? What capacities are to be achieved? Which product characteristics give you an advantage over your competitors? We understand the market and are able to manufacture all system components individually in accordance with your requirements, if necessary.

Innovative grinding technology in the timber industry

Being a specialist in complex digestion systems, we are just as concerned about the crushing as we are about the necessary yield and conveying technology, the fractionation of the ground wood and the separation, including dust explosion protection. We rely on innovative and modern systems engineering for hammer mills.

Quality and systems engineering services throughout the world

We are there for you worldwide and support you in all areas. We work closely with your team and develop bespoke solutions. We support you worldwide in all areas and offer service and maintenance services as well as comprehensive training programs. We ensure smooth production and minimise downtimes with our high level of replacement parts availability.

Read more

Hammer mills in wood industry

Wood pellets as climate-neutral fuel
Grinding straw to increase regional energy production

Our partners

In the processing of wood and fibres

Logo Jelu
Logo Jeld Wen

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