has extended its range of trailer-mounted, non-destructive vacuum excavators available for hire, following positive feedback from customers.
The versatile Kennards vacuum excavators can now be hired in Queensland, Victoria and NSW, with plans to introduce them into other areas in the future.
Kennards’ vacuum excavators employ high-pressure water-blasting to break up the soil, using a high-flow vacuum system to extract it from the excavation area. Small, deep, precisely-controlled holes can be dug quickly to uncover buried utilities without the risk posed by a backhoe or excavator.
One of Kennards’ vacuum excavators was hired by a major power supplier who was involved in the upgrading of the electrical system in an area following the construction of a 132,000V substation. The work included installing a 240mm 4 core XPL cable under a pad-mounted substation, which had terracotta water pipes running beneath.
The power supplier used a ‘Gerni’ to dig a tunnel for the new cable, minimising the damage to the old terracotta pipes. The portable vacuum excavators can also be towed from site to site behind a small tipper. The compact design allows its use in space-constrained areas unlike truck-mounted vacuum excavators that are about four times as big.
The Kennards unit has a 946-litre tank for spoil and a 378-litre water tank with attached hose and wand for jet blasting. A 575cfm pump is powered by a 25hp Kubota diesel engine with electric start and throttle.