MEGALIFT were called upon to demonstrate their expertise and experience with a problem facing a customer during a major building project. The team was challenged with erecting a series of "Blast Containment Doors" within a new building. The doors themselves were of a steel frame construction, in filled with concrete, 15 metres long x 5 metres wide x 0.50 metres thick and weighed 50t. In this case they were within a building with no headroom at all, which called for a unique approach to the problem.

Due to the unusual nature of this case, a creative and unconventional solution had to be found. After several meetings with the contractors, MEGALIFT custom designed a spinning frame to attach to the doorframe containing two stub shafts, projecting out from either side of the frame. Two track lengths were erected running through the doorway and the 4400 and 4100 MEGALIFT systems fitted into place.

Innovative use of the two MEGALIFT systems together meant that the doors could be safely lifted and manoeuvred into place. The door was positioned on the floor between the tracks horizontally then lifted by the 4100 MEGALIFT system until it was high enough for the 4400 system to access underneath. This had been fitted with custom made lifting beams and had sockets fitted to receive the stub shafts on the spinning frame.

After locating the stub shafts into the sockets, a pair of rams controlled the door during the rotational operation. The 4400 system then extended the cylinders and, due to the position of the spinning frame, lifted the door completely vertical. The MEGALIFT system, which is able to travel forwards and backwards, up and down and to crab from side to side, was then able to fit the door into the final position with ease.

This case is working example of MEGALIFT once again drawing upon their considerable experience with heavy and complicated lifting operations to provide a tailor-made solution to the client's problem.