Stressing jacks and complementary electric pumps from Enerpac are
available for construction, engineering and infrastructure industries working on
elevated structure projects such as bridges, beams, production plants, resource
facilities and high-rise buildings.
The single and double-acting stressing jacks, as well as the ZU4 pump
used to actuate them are among the latest compact and easily handled
high-pressure 700 bar hydraulic technologies available from Enerpac.
Part of a comprehensive family of stressing products from Enerpac, the
jacks, weighing 19-28kg are actuated by Enerpac’s high pressure ZU4 series
electric pumps featuring higher oil flow and bypass pressure, cooler running
and 18 per cent less current draw than comparable pumps. Optional pendant
control is available for the ZU4 pump.
Mr Denis Matulin, Regional Manager, Enerpac Australia and New Zealand explains
that the pump’s powerful 1.25kw universal electric motor provides high
power-to-weight ratio and excellent low-voltage operating characteristics, which
can be important on remote sites.
To complement the stressing jacks, Enerpac has engineered a new version
of the ZU4 pump, the ZU4408REA300, featuring a bleed-off valve. Once the cable
is stressed to the correct tension, the operator slowly opens the valve to
allow the wedges to bind on to the cable without slippage and with enhanced
efficiency and safety.
Combinations of the ZU4408REA300 pump and Enerpac jacks are available
throughout Australia and New Zealand. Long-established Enerpac distributor
Jonel Hydraulics has introduced a special promotion in New Zealand until June
Enerpac’s family of stressing products includes a complete range of
anchors, chucks, wedges and stressing jack systems for the pre-tensioning and
Single-acting PTJ models, with spring-seating and optional power-seating
are equipped with the new Enerpac RC post-tensioning cylinders with a 254mm
stroke, ideal for slab-on-grade applications. Double-acting 6DAH models are
available in 150mm, 200mm and 300mm strokes.
Enerpac’s family of stressing products is complemented by the global
Enerpac range of high pressure 700 bar precision hydraulics, including the
advanced ZU4 pumps used to actuate them, which are widely proven in the
construction, resources and infrastructure industries.