Feller Bunchers and Harvesters - Key Harvesting Applications Using Hydraulics

Feller Bunchers and Harvesters: Key Harvesting Applications Using Hydraulics

Hydraulics is widely used in almost every sector because of its ability to handle large loads safely under challenging environmental conditions. This makes hydraulics the most efficient among other power transmission methods. So, when considering forestry applications, the most preferred will be hydraulic machinery. Because forestry harvesting process deals with handling heavy loads like transporting trees from a forest site to a wood processing mill. The different operations that can be performed by this harvesting machinery are felling, delimbing, debarking, bucking, chipping, wood extraction, piling, loading, and wood transport. Other than tree processing, the hydraulics will deliver excellent driving comfort and good control in uphill and downhill driving.

The forest harvesting process can be handled effectively using hydraulics. The hydraulically actuated grippers in both feller buncher and harvesters can hold the tree safely after cutting. These heavy-duty machineries will deliver maximum productivity by maintaining the quality of every cut. When considering the role of hydraulics in these heavy machinery, the fluid pressure will supply the power for cutting the trees and holding the logs safely. The harvesting attachments are connected to the boom of the forwarder and operators can control the boom functions from the cabin. By adjusting the joystick-like controls in the cabin, the height, angle, and attachment operations can be adjusted.

What is a feller buncher? Feller buncher for logging operation is mainly an attachment connected to motorized heavy-duty forestry vehicles for cutting and gathering several trees. The key benefits of feller buncher machinery include durability, improved productivity, ease of operation, safe working environment, etc… Most of the feller-buncher attachments are built with high-grade alloy steel to deliver maximum durability and safety. Also, the design of this attachment will include a cutting disc and cutting teeth, which can be adjusted based on the tree size and required cutting operation. The teeth and holder of this attachment can be reversed and rotated completely based on the operator controls.

The felling head and bunching head are the two important parts of the feller-buncher attachment. The felling head is used for cutting and carrying large trees and the bunching head is used for holding the tree tightly and parallel. The tree is cut using the flywheel or inertial type disc with saw teeth arranged around the perimeter. The disc will be driven by a hydraulic motor and cylinders are used for controlling grab arms.

How is feller buncher operated? By adjusting the hydraulically operated boom on which the attachment is connected, the feller buncher can be positioned next to the tree. The hydraulically-controlled clamp will secure the tree in place and then the operator will activate the cutters or saw blades to perform the operation. These trees can then be moved to other locations for processing.

The feller buncher for an application is mainly selected by considering two factors like the terrain(flat ground or steep slope) and tree stem size.

By Web Desk : Mar 11 2021 2:20PM 0 436

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