Our main stage has a stage rigging that consists of 22 pull rods. The pull rods hang in 7 cable wires, which, via blocks and pulleys, are connected to a ChainMaster VarioLift BGV-C1, where the chain has a horizontal track. The electrical chain hoists are located on the side of the stage, in the transition between the roof and wall, 11 pcs on each side. These are currently controlled by an old ChainMaster XYZ styresystem.

We would like tenders for the procurement and assembly of and follow-up/service contract for a new control system for our 22 motorised ChainMaster VarioLift hoists 250 kg, with a variable speed of 1-12 m/min.