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Two Manhole Buddy trolleys are available, made from Steel or Aluminium. These are convenient to carry and store, yet unfold fully in a matter of seconds, through two simple movements. The stronger steel trolley has the highest Working Load Limit; the lightweight aluminium trolley is still incredibly robust and ideally suited to weight sensitive applications.
The trolley is essentially a mobile lever, pivoting on its wheels and having two lifting points, the forward lifting hook for balanced lifting and carriage of covers and a pair of High Leverage lifting pins through which the cover unseating capability is accessed.
The trolley design delivers a mechanical advantage of just over 2.3:1 through the forward lifting hook, so a modest downward force of 25 kg on the trolley handle, translates into a lifting effort approaching 60 kg at the other end. The High Leverage lifting pins are positioned to deliver a mechanical advantage greater than 5:1 which means the 25 kg downward effort inputted by the user translates into a lifting force greater than 125 kg.
The mechanical advantage delivered by the lifting trolley, allied to a layout which keeps the operator distant from the cover and the open chamber, makes the product inherently safe for lone workers.
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