Trencher

A chain-blade trencher features a straight, chainsaw-like blade with a rotating toothed chain. These trenchers feature adjustable cutting depths, allowing you to make a trench deeper or more shallow by adjusting the boom angle on the blade. Chain trencher uses either a belt or a chain around a rounded metal frame resembling a humongous chainsaw.

This type of trencher can cut ground that is too hard to cut with a bucket-type excavator, and can also cut narrow and deep trenches. The angle of the boom can be adjusted to control the depth of the cut. To cut a trench, the boom is held at a fixed angle while the machine creeps slowly.

The chain trencher is used for digging wider trenches (telecommunication, electricity, drainage, water, gas, sanitation, etc.) especially in rural areas. The excavated materials can be removed by conveyor belt reversible either on the right or on the left side.

Multiple chain types are available, including chains with cutting teeth and with scooped "cup" teeth designed to more easily cut through dirt so the trencher can cut easily into hard or compacted ground. Inspect the chain on a trencher before use, especially if the trencher is used or rented; teeth break occasionally, and chains stretch over time to the point that they can come loose during operation.

 

In some rock types, advantages of using a chain trencher outweighs the limitations attached to it while giving some cost and environmental benefits.