The use of traction aids in forestry

Which traction aids should you be using in your logging operations?

The Forestry Commission released a valuable technical note for the use of traction aids in forestry. The different types of traction aids are described. These are tyres, wheel chains, double wheels and band tracks. Each type of traction aid is discussed considering the traction aid description, the effect on traction, the effect on flotation and the effect on ground disturbance. Interesting aspects covered include the fitment of the traction aids, machine flotation calculations, tyre pressure implications, the effect on rolling resistance and potential wheel slippage.

Under bandtracks, side links and side paws are explained. Side link band tracks are simpler, have lower purchase costs and are better suited to machines that do not move much between sites, as they can cause more disturbances. Side paws allow the track plate to be extended beyond the wheel width while still maintaining contact with the sidewall. They also provide support for the track on the tyre when exposed to lateral forces such as when turning. Side paws also reduce soil disturbance and rolling resistance.

Other interesting information includes the selection of a traction aid to match the site. A table explains different ground conditions and how each type of traction aid is suited to each ground condition. The advantages and disadvantages of traction aids are explained.

The document was published by the Forestry Commission in 2006 as Technical Note FCTN013, and is titled “Traction Aids in Forestry”. The compiler was Duncan Ireland. Access the document at http://www.forestry.gov.uk/pdf/fctn013.pdf/$FILE/fctn013.pdf