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Home | Success Stories | Energy-Independent production: Brennholzwerk Trier lives the sustainable dream

Energy-Independent production: Brennholzwerk Trier lives the sustainable dream

Wood 22.05.2025

Brennholzwerk Trier, Trierweiler, Germany, exemplifies an innovative and future-ready energy concept. By combining renewable energy, self-generated heat, and a WEIMA WLK 2000 single-shaft shredder, the company is almost entirely independent from external energy sources.

Zerkleinerung von Brennholz Produktionsabfällen

Shredding of firewood production waste with a WEIMA WLK 2000 at Brennholzwerktrier
Success story
Shredding of firewood production waste with a WEIMA WLK 2000
Brennholzwerk Trier specializes in the production and sale of premium firewood sourced from local forests. Sustainability is at the heart of their operations. The wood is dried in specially designed chambers heated by a woodchip system. This thermal energy is generated from their own wood waste – processed by a WEIMA WLK 2000 shredder.
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Holistic sustainability – from production to power

The company’s energy strategy focuses on maximum efficiency and closed-loop thinking. A wood-powered combined heat and power (CHP) plant supplies both thermal and electrical energy. In addition, a large photovoltaic system provides electricity for the entire facility – including the WEIMA shredder. Each year, approximately 2.500 MWh of energy is produced, while only 350 MWh are required to operate the facility. The significant surplus powers their own EV charging station and is fed into the public grid – directly contributing to the energy transition.

Brennholzwerk Trier company premises within an industrial area photographed from the air.

Energy-Independent production: Brennholzwerk Trier

Stacked wire mesh boxes with kiln-dried firewood in the warehouse of the Trier firewood factory.
Wooden pallets and coarse wood scrap are transported by the telehandler into the feed hopper of the WEIMA shredder – ready for further processing.
Split, dry firewood in a wire mesh box.
Large pile of wood scraps, boards, and branches in a warehouse at the Trier firewood factory.
WEIMA WLK 2000 shredder next to a large pile of residual wood and sawdust in a hall of the Trier firewood factory.
Shredded wood chips fall from a red Steiner spiral conveyor into a concrete bunker in the Trier firewood plant.
Stacked wire mesh boxes with kiln-dried firewood in the warehouse of the Trier firewood factory.
General view of the plant in the Trier firewood factory with WEIMA shredder, red Steiner screw conveyor and large waste wood storage area.
Drying chambers are operated with heat from the wood chip heating system
Two large wood chip heating boiler systems with red casings in the technical room of the Trier firewood plant.

“We wanted a system that works in perfect harmony and operates as autonomously as possible. With the WEIMA shredder as the centerpiece, we’ve achieved exactly that”.
Markus Arnoldy
Markus Arnoldy
Managing Director and Co-Partner of Brennholzwerk Trier

A sustainable system that sets standards

Brennholzwerk Trier demonstrates how modern wood processing can be seamlessly integrated with intelligent energy supply. The WEIMA WLK 2000 is more than just a machine – it’s a key component of a carefully crafted, resource-saving energy concept. “Our goal was to waste as few resources as possible. The WEIMA shredder adds real value – both to our production and to the environment,” concludes Markus Arnoldy. This is a compelling example of how responsible resource management and energy autonomy can go hand in hand in everyday practice.

An orange shredder in the middle of large concrete blocks with screw conveyor

Efficient wood waste utilization with the WLK 2000

Wood residues from firewood production, along with scrap wood from a neighboring carpentry business, are fed into the shredder’s large hopper using a telescopic loader. With a rotor length of 2.000 mm and a diameter of 370 mm, the WLK 2000 is designed for high throughputs and easily handles bulky and tough materials – including pallets and reclaimed timber.

A telescopic loader transports wood scraps into a large hopper for further processing.

Wood residues are transported into the large hopper using the telescopic loader.

The shredder features WEIMA’s proprietary WAP gearbox, designed for long-lasting, low-maintenance operation. Thanks to its robust design and integrated safety clutch, the drive ensures smooth performance, while its compact structure and easy accessibility minimize service efforts – a clear benefit in daily operations. The tailored drive solution also stands out for its durability and low running costs.

Fred Haller, Sales Director at WEIMA
We would be happy to advise you.

Transform leftover wood into valuable material – we can help you.

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Smart conveying with Steiner-Spiralen

A 30 mm screen is used to ensure ideal chip size for downstream conveying systems. A rugged Steiner screw conveyor transports the shredded material into a storage bunker. A magnetic separator mounted above reliably removes metal contaminants such as nails or screws, protecting subsequent equipment. From there, another auger feeds the chips directly into the woodchip heating system – supplying thermal energy to the drying chambers and a neighboring workshop.

An orange shredder in the middle of large concrete blocks with a screw conveyor between a pile of waste wood and a bunker with wood chips

A WEIMA WLK 2000 shreds wood waste into wood chips

Large pile of wood waste in the hopper of a shredder

Wood residue in the hopper of a WLK 2000

From big to small: wood chips are transported into the bunker using the Steiner screw conveyor.

The Steiner screw conveyor efficiently transports wood chips into the bunker

Drying chambers are operated with the heater from the wood chip heating system.

The drying chambers use the heat from the wood chip heating

“We often deal with large and solid wood residues. We needed to be confident that our shredder could process them without issue – and it works brilliantly”.
Dominik Roa
Dominik Roa
Co-Owner and Partner at Brennholzwerk Trier

Contact

Katherina Baborsky

Marketing

WEIMA Maschinenbau GmbH

Bustadt 6-10

74360 Ilsfeld

Tel. +49 (0) 7062-9570-5531 media@weima.com

Contact

Additional Information
We are WEIMA:

More than 40,000 machines sold worldwide. WEIMA has been manufacturing robust shredders and briquetting presses for the disposal and processing of all types of waste for more than four decades. Our machines include single-shaft shredders, four-shaft shredders, cutting mills, briquette presses, packaging and draining presses. The popular blood orange machines are used in the wood, plastics, paper, metal and waste-to-energy industries.

Made in Germany. Built for the world.

Shredders, briquette and draining presses from WEIMA are exclusively made in Germany and come from production plants in Saxony-Anhalt and Baden-Wuerttemberg. Every year, more than 320 employees work on around 1,200 customer solutions from around the globe. We have long-standing sales and service locations in the USA, Italy, India, and China. More than 80 representatives supplement this global presence.

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