Combine Harvester Overview

January 14th, 2009 | Tags: , , ,

A Combine Harvester is a piece of heavy machinery that is used in the process of cutting things to length and for logging as well as for felling, cutting and buckling of trees. It is normal practice for the harvester to be used along with other machinery to haul logs and trees to an area on the roadside where they can be lifted.

The harvesters were first developed in Sweden and Finland and nowadays the harvesters are used for all the tree felling. The harvesters work best on rough terrain so they are ideal for cutting and clearing in a forest environment due to the steep gradients however in some conditions it is best to use chain saws to cut the trees down. The main manufacturers of the harvester machines are John Deere who makes the Timberjack and Komatsu who make the Valmet.

It is common for the harvesters to be built on a robust vehicle that can cope with all different terrains and these can be either tracked or wheeled. On some occasions the vehicles can be articulated which allows the machine to turn around completely. When the vehicle is articulated it will have a boom similar to that of the excavator. There are some harvesters that have been specially adapted so that they can also do the work of an excavator.

The most common harvesters consist of a chain saw that is capable of sawing down the trees and it is also useful for cutting the trees to the length that they are required. The chain saw within the harvester is operated by the hydraulic engine, which is also a two stroke robust engine. The harvesters will probably have two curved knifes which will grasp around the trunk in order to remove branches. It is also very common for the harvester to have two feed rollers, which reach and grip the tree and the wheels on the system will roll to enable the tree to be embraced by the harvester. There is usually another two knifes as well and these are used for de-limbing the trees.

All of these different tools work together and they are controlled by the operator who works within the cab of the vehicle. The operator uses a sort of computer system in order to operate the different mechanical devices all from the comfort of the cab. The computerised controls are all reasonably easy to operate. The computerised system also makes it a lot easier to cut the tress to the size that is required because the computer can be programmed with the exact size required.

The harvesters that are able to cut trees with a diameter of nine hundred millimetres and the tools are built onto vehicles that weigh up to about twenty tonnes and have a boom that is able to reach out to ten meters in radius. The vehicles that are bigger and heavier do more damage to the forest so one that has a bigger arm will be better as it will allow more trees to be felled from the one position.

Incoming search terms for the article:

No related posts.

Leave a comment
Comments are closed.
86hywoiu9839t543j0s7543uw0