Energy from waste wood with UNTHA shredding technology

 Thursday, December 1, 2022

UNTHA shredding technology revolutionises energy from waste wood. For twenty years FCC Austria has been putting its trust in the UNTHA shredders, recently Holzbau Rohrmoser relied on UNTHA shredding technology to heat its business premises as well as the adjacent residential building.

The Rohrmoser carpentry and timber construction business based in Flachau/Salzburg appreciates the quality of the UNTHA LR700 shredder. The waste wood from the company’s production as well as building sites is processed by the compact shredder into high-grade fuel for a wood-chip heating system. The business and the residential building that joins it cover their energy needs for the winter with the material produced in-house.

LR700: robust, compact, crucial

Rohrmoser first began to use an LR700 unit from UNTHA shredding technology for the shredding of waste wood around Christmas 2016. Johann sees the benefits of the unit in the cutting system with a swivelling pusher and the low maintenance requirements. Waste wood from joinery constructions, splinters from circular saw operations and waste wood from the construction sites are all fed into the shredder and are mixed with wood shavings, resulting in a particularly productive heating material. The chips are extracted into the chip silo straight after the shredding process, where they are stored until the winter, when they are fed into the wood chip heating plant via a discharge system. “The wood chips see us through the winter,” says Johann, who uses the heating plant not just for his business, but also for his home that adjoins it.

For FCC Austria, the UNTHA ZR2400 is the winner

The reason for the purchase was the need to replace an existing single-shaft shredder from a competitor. Due to its limited throughput and high susceptibility towards non-shreddables, the unit no longer fulfilled everyday requirements. Prior to the purchasing decision, four models by different manufacturers were tested over a period of several weeks, with a focus on cutting power, throughput, susceptibility towards non-shreddables, reactivation in case of non-shreddable input, and low maintenance requirements. At the end of this trial phase, there was a clear winner.

Tags: energy from waste wood, FCC Austria, Holzbau Rohrmoser, shredders, wood, wood waste management, woodworking and manufacturing, woodworking and shredding, woodworking industry