Limbing is the practice of removing branches from felled trees before processing or shipping. Different types of logging use different methods of limbing, which can be dangerous. There are three main types of logging, each with its own limb removal process. Whole-tree and tree-length logging involve manual removal of limbs using chainsaws, while cut-to-length logging uses heavy machinery to remove branches.
Limbing is the logging practice of removing branches prior to shipping or processing felled trees. There are different forms of logging and limbing can take place in different stages depending on the type being used. When entire trees are cut down whole, a logger typically removes the branches with a chainsaw after the tree is down. Other types of logging use heavy machinery to remove branches as the tree is being cut down. The type of logging used and the variety of limbing that occurs depend largely on the size of the trees and the composition of the landscape.
There are three different main types of logging that use different types of machinery. Whole-tree and tree-length logging both involve felling whole trees, which is the only way to deal with exceptionally large specimens. Cut-to-length logging is a variation that uses specialized equipment to cut trees to specific lengths right at the stump. Each of these methods may be associated with different types of limb removal, which may also be referred to as chasing or snedding.
In whole tree logging, the trees are felled before being hauled to a landing where they can be further processed. Loggers can then use chainsaws to manually trim trees and remove their branches before lifting them for transport. This type of limbing can be dangerous because the weight of a tree on its branches can generate large amounts of potential energy. Woodcutters are usually very careful when performing this work, as a severed limb can snap back and cause serious injury.
Tree-length logging involves manual removal of limbs using chainsaws. This process is slightly different, as it usually involves limbing right at the site of the stump before the tree is moved onto a landing to be lifted and hauled away. Many of the same dangers seen in whole tree logging may be associated with this practice. The difference is that loggers do the limbing right on the stump, so they might be further away from help if something goes wrong.
The cut-to-length process uses a highly mechanized process for limb removal. This type of logging usually requires two different heavy machines, the first of which is referred to as a harvester. Harvesters can grab an entire tree, cut it down to size, and remove the branches. This process can be less labor intensive because much of the work is done by a machine, although the size of trees that harvesters can handle is usually limited.
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