TS ISO 13861

TS ISO 13861 is a terminology and commercial-specification standard for forestry machinery, focused on how wheeled skidders are named and how the main information used to describe them is organised. It provides a common technical language and a comparable description framework for articulated wheeled cable and grapple skidders.

How the terminology and commercial data work together

In a standard of this type, the goal is to help manufacturers, purchasers and technical users refer to the same machine with the same concepts. Wheeled skidders are forestry machines used to pull felled timber through the forest to a collection or forwarding point. The terminology component reduces ambiguity in technical communication, while the commercial-specification aspect supports consistent presentation of dimensions and features in catalogues, tenders and technical documents. The standard also recognises that not every term will apply to every machine, so identification is based on the dimensions and features relevant to a particular design.

Machine types covered by the scope

• Articulated wheeled skidders
• Wheeled cable skidders
• Wheeled grapple skidders
• Terminology for identifying main dimensions and features
• Commercial description of the machine characteristics that are relevant

In general technical terms, skidders are forestry machines designed to extract logs or tree stems by dragging them from the work area to a landing or transport point. The wheeled layout supports mobility and manoeuvrability in forest operations, while cable and grapple arrangements represent different ways of securing and handling the load. The value of this standard lies in bringing those shared concepts into one structured technical vocabulary.