Capital Equipment News July 2021

BACKHOE LOADERS

A side-shift backhoe loader can dig along walls or structures.

Backhoe loaders: centre- mount or side-shift? The debate over centre-mount versus side-shift backhoes is ongoing, with some in the industry preferring the superior lifting capacity of the former and others attracted to the greater lateral reach offered by the latter. This feature highlights the differences between the two, their applications, advantages and disadvantages, and sheds light on some of the models available in the market. By Mark Botha . T he primary difference between the centre-mount (or centre pivot) and side- shift backhoe, according to of Mahindra South Africa CEO Rajesh Gupta, lies in the placement of the swing post. “On a centre-mount backhoe, the swing post is mounted in the middle, at the centre of the H-frame while, on the side-shift version, the swing post can be moved to either side of centre, allowing the backhoe arm to move exactly as required by the operator. He says the centre-mount backhoe is suited to “a very specific operation” where the work is clearly defined and the area is well controlled. “The side-shift backhoe, by contrast, is the backhoe of choice if the environment is bound to change and where the work is more demanding. Think, for instance, of working on hilly ground or doing corner trenching, where there is some difficulty to manoeuvre.” Revaro Construction Operations manager Lourens Ackerman agrees, saying the

central position of the swing post on centre- mount backhoes is a fixed position from where the stabilisers swing out and down from the sides of the frame. “A side-shift backhoe is designed with the backhoe’s kingpost mounted on a carrier. This carrier can slide from one side to the other along a frame, with rails that include stabilisers mounted on both sides, which extend vertically.” He says the choice between using a centre-mount or side-shift backhoe should be based on the nature of the project: “Consider the type of trench you plan to dig or the space constraints in which you will be doing the work.” Griffiths Makgate, C&F sales manager Africa and Middle East at John Deere, adds that the stabilisers on centre-mount machines “open wide and protrude beyond the width of the machine”. “On side-shift machines, the backhoe moves sideways and the stabilisers are positioned vertically. Their width matches that of the machine.” Applications While the centre-mount backhoe is more suited to well-defined and controlled work areas, says Mahindra’s Gupta, side-mount backhoes are better suited to complex environments or to where the machine is called upon to work in “varying conditions”.

CAPITAL EQUIPMENT NEWS JULY 2021 20