Contractors World International Vol 6 No 4
Victoria’s holiday coastline from Geelong
down to Lorne is one of the State’s most
popular locations, so it’s no surprise that
many people are building their retirement
dreams and holiday getaways to be close to
beaches and coastal forest.
Builders commonly specify piling that
needs to be sunk deep into the sides of
hills that overlook the beaches and valleys.
Drilling and piling contractors, such as
Jed Willman, are kept fully booked, as
construction of housing remains buoyant
in this high demand area.
With a busy workload and looking to
expand into screw piling, Jed had already experienced
considerable success with his Takeuchi TB145 excavator.
The high torque specifications for screw piling meant
he needed more hydraulic power, so he invested in a new
Takeuchi TB260 excavator equipped with a Digga PD15
auger drive. Jed has run up to a 900 mm diameter auger
bit with a drilling depth of over 4.5 metres.
Hydraulic flow needed to be increased to deliver
the 15,000 Nm torque required for screw piling, so the
Takeuchi distributor, Semco, installed a switch that links all
the hydraulic pumps on the TB260 excavator to increase
hydraulic output for maximum flow.
A visual pressure gauge within the cabin of the excava-
tor allows the operator to monitor the hydraulic pressure
that is being delivered to the auger drive.
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