Via slings, objects would require being held in a certain position to have broken or chipped surfaces re-bonded. Precise adjustments would be required to ensure that the 'mend' is unseen. The lifting solution also had to operate within a basement room measuring 4m x 4m, and in order to optimise the available space, a bulky support gantry was to be avoided if possible. The V and A museum eventually chose two, which were suspended from the ceiling structure and avoided the necessity for a gantry completely. Each crane was fitted with two hoists, each with the ABUS ABUliner infinitely variable speed control. This arrangement offered a four-point lift and allowed the precision control in three axes that the museum had demanded.
The ABUliner not only allows the speed of the motor to be continuously variable, but it also boasts a very low minimum speed for sensitive operations and its smooth performance virtually eliminates load bounce or swing and extends the useful life of the cranes motors and support structures. Variations in speed are achieved simply by gently increasing or decreasing thumb pressure on the pendant hand set buttons. The crane system was supplied with a four-year guarantee and ISO9001 compliance as standard.