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Wisconsin contractor Findorff showcased the versatility of Tadano’s mobile AC 7.450-1 crane during the construction of a new 44-storey mixed-use building in Milwaukee.
The AC 7.450-1assisted with the dismantling of a tower crane used during construction of the new Couture building. It then lifted and set eight precast panels into where the tower crane was tied into the building.
Findorff Supervisor Kurt Erickson said using the AC 7.450-1 saved the company money and time.
“We looked at many different options to setting the panels, most of which would require some kind of modification of interiors or high equipment costs,” Kurt said.
“But since Reynolds had the 450-tonne Tadano all-terrain already there, we could extend the timeline by only one-two days to set these panels.”
Kurt lauded the AC 7.450-1’s versatility.
“The crane’s automatic boom/luffing angle adjustments to minimise deflection when the weight of the pick changed was perfect for this task due to us needing the hook less than one foot (0.3 metres) away from the structure most of the time.
“The AC 7.450-1 was able to handle the panels without an issue. In fact, the critical pick was the final precast panel, which came in around 3,447 kilograms with rigging at a radius of 41m and a height of around 116m.
“Radius, capacity, and most importantly height was not a concern at all due to the configurations available. And reconfiguring also seemed to take a much smaller crew and went faster.”
Reynolds Crane Executive Vice President Nate Reynolds describes how the versatile Tadano crane came through in the clutch: “A jobsite like this showcases exactly why we decided to add this new crane to our fleet.”
“Eighty metres of main boom with max tip height of 128m is optimal to set tower cranes in the Midwest and then when you look further at the load charts, this crane fits perfectly for customer demand within our daily crane rental fleet. We are always listening to customers and learning how we can best support them.”