Making Pellets: From woodchippings to a pellet

Pellets are pressed from dried wood shavings, of which two different types of primary materials are used. Residual wood from sawmills is used, taking the wood chips and the sawdust, both convetionally seen as waste or by-products. For a few years now we have also produced our own wood chippings; alongside the residual wood material, we make use of "industrial" wood which is unsuitable for sawing. This wood is then debarked and then reduced to course chips. Following this process, the chippings are then introduced into the pellet manufacturing process.

Pelletprodktion

The chips are further crushed in the hammer mills to the desired particle size, dried and then pelletized. To do this, the chip layer is conditioned with superheated steam and pressed through a steel die, similar to a meat grinder. Temperature, humidity and pressure assure that the wood's own lignin, a polymer that is responsible for the firmness in the plant tissue, liquidizes. Through the subsequent cooling, during which the lignin hardens again, the pellets achieve their firmness. They are stored in silos before they are either bagged or transported by truck.

Monitoring of Production

Production at German Pellets is constantly being monitored. In this way, we can garantee the same, high quality pellet.

- Self Monitoring: We regularly run tests while also examining and documenting all the important parameters. This is carried out in accordance with the requirements of the quality management as per ENplus A1 and DINplus. At German Pellets we run these checks even more frequently than what is required of us.

- External Monitoring: A state authorised testing commission conducts unannounced checks of our Pellet plants in accordance with the ENplus A1 and the DINplus certification programs. Here too the quality management systems are inspected as well as the results of the internal tests.