ROUGH TERRAINS Ӏ SECTOR REPORT
Manitowoc’s new heavy duty jib for its GRT9165 is aimed at tilt-up work
In October 2022 Terex announced that it would be launching two new models in its TRT series with that new control system, TEOS, or Terex Operating System. The TRT 80US and TRT 100US offer capacities of 80t/88USt and 100t/110USt respectively, with boom lengths of 42.1m and 47m. At ConExpo, the company will be showing a smaller crane, the 40t TRT 40US. Like the tiny Tadano, this crane is designed for
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Wisconsin, USA,
contractor Miron contributed to the GRT9165’s new jib design and put the fi rst unit to work building a school in the west of the state
compactness. It is just 8.2ft, or less than 2.5m, wide, allowing for easy movement on congested job sites or through narrow spaces. It is offered with a choice of
Stage IIIA or Stage V engines, to suit emissions regulations around the world. The four-wheel drive carrier can be operated manually at three forward and reverse speeds, or in automatic mode with five speeds available.
TAILORED TO TILT-UP If you’re looking to enclose a lot of space – traditionally for factories or warehouses and increasingly for giant battery ‘gigafactories’, chip foundries, or server farms – somewhere miles away from concrete suppliers, tilt-up is an ideal technique. Rather than pouring concrete in-situ using formworks, or transporting prefabricated pieces by road, panels can be pre-cast locally, flat on the ground, and then pulled to the vertical. It’s a popular technique in the open expanses of the USA. Manitowoc’s latest add-on for its GRT9165, a new heavy duty jib, squarely targets this technique. The company says the 165USt (150t) rough terrain
40 CRANES TODAY
already competes well with other equipment, like lattice and telescopic crawlers, in terms of speed of set up. The heavy duty jib, which
measures 12.5ft (3.8m) long, with two sheaves for up to four parts of line, and a capacity of 68,000lb (30t), aims to add to these advantages. The jib allows operators to operate two hooks, on the boom and jib, together, enabling locally-poured panels, or pre-cast pieces delivered to site horizontally, to be raised to the vertical. An in-cab switch allows the operator to easily move to two-hook operation, with precise control over the hydraulic jib. Manitowoc says this is a
market that is changing rapidly, with hollow, pre-cast pieces increasingly used. As well as being lighter to lift, these make use of less concrete, cutting the overall environmental impact of construction, with CO2 footprints reduced by as much as 25%. This type of work is expected to grow 5.6% annually over the next five years alone, the manufacturer says. Its benefits include efficiency, cost reduction, speed, and more consistent quality.
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