Bull Rigging Services for Horizontal Moves in Confined Spaces: How is this Done?

November 4, 2019

Bull rigging adds a whole other dimension to crane lifting operations. For some reasons, a straightforward overhead lift is out of the question, so a special system of additional lines is “rigged” to lend the procedure a needed measure of planar motion. Basically, Bull Rigging Services combine upwards and horizontal lift operations so that overhead cranes can circumvent tricky crane hoisting situations.

Taking The Bull By The Horns

Conventional crane lifts use a boom and hook to raise heavy loads straight up, at which point a drum and cable work with the boom to transport that load elsewhere. But what if this everyday lift scenario is somehow made impossible? A roof or wall is in the way, or maybe there’s some other obstruction preventing the boom from getting above the lift zone. Whatever the reason, an overhead crane can’t get the job done, not without a Bull rigging service. This team of line configuring specialists get right to work. Their job is to “drift” the load, to send it into a controlled horizontal sweep that’ll carry the material load sideways or horizontally past the overhead obstacle.

Bull Rigging Services Overpower All Hoisting Obstacles

It’s not as if a heavy burden will “Tarzan” its way into the open after the rigging has been prepared and fixed. To the contrary, a safe and controlled horizontal lifting motion must be established before the swing begins. That’s not a straightforward proposition, not without the right rigging gear on-hand. Bull rigging professionals bring in chain falls and winches to ascertain an elevation-less arc. The equipment array grows to include hydraulic jacks, numerous rigging blocks, and chain-mounted hoisting mechanisms. Clearly, it takes a great deal of planning to pull off an expertly managed load suspension and drift procedure.

Pulling Off Horizontal Moves in Confined Spaces

If a powerful crane is waiting outside a confined space on a high-storied structure to take up its load, it can’t just drag that material sideways. That’s an absolutely invalid lift procedure, one that no crane operator would ever follow. No, the Bull rigging team needs to set up that drift procedure so that the cargo can move horizontally. The members of the team must understand load weight estimation procedures, centre of gravity rigging, weight distribution matters, plus all of the block and chain tools that’ll inevitably perform the drift procedure.

More than all of that, Bull riggers understand angles and tensioning forces. They can make a heavy load drift, as made possible by a complex system of chain-mounted counterweights. Really, in confined spaces, where cranes cannot execute a straight up and out hoisting sequence, Bull Rigging Services must be called in to set up a drift. That’s the only feasible way forward when a crane hook can’t get in to do its job.