De Velinx · Captivating Entertainment · Tongeren, Belgium

38 hoists, one button, six shows a week

38 stage hoists on one button, six shows a week, no counterweights.

All cases

The project

One button, 38 moving parts

How Boolean and Stapotech replaced hand-pulled counterweights with a single control system that runs every hoist in the building.

Before automation, moving De Velinx's stage rigging meant a technical crew pulling counterweighted battens up and down by hand, every lamp or piece of scenery matched with a counterweight, rebuilt before each show and torn down after it, roughly six times a week. The system also had to work for visiting technicians who don't know the venue, and the theatre's two performance halls face different directions, so a single fixed control view never showed the whole stage.

Result

Every hoist raised and lowered at the press of a button, at double the previous load capacity
No more manual counterweighting before and after each show
One control system now running reliably in 15 theatre halls
Two dedicated control views, matched to each hall's own stage orientation

What we did

We built an open, redundant control system on industrial-grade PLC hardware: one controller running the motion for all 38 hoists, with signals and safety wired over a single redundant network so a fault in one loop doesn't take the rest down. Two separate control panels match the two halls' different stage orientations, so the crew always has a full view of what they're moving, whichever hall is in use.

How we delivered it

The system has gone through several iterations with Stapotech, adding features while keeping it stable and reliable enough to run six shows a week without incident. Hoists no longer need to be linked mechanically: grouping and height limits are handled entirely in software, so the crew can't accidentally damage the set while operating it.

“We used to pull everything up and down by hand, twenty counterweights at a time, before and after every show. Today we just press a button, and we can carry twice the load. It's a huge step forward, in time and in safety. Nobody wants to go back.”
Inne Box · Head of technical crew, De Velinx

In detail

How the rigging is controlled

Every hoist is really a small machine: a winch, a motor, and the sensors and safety logic that keep it in bounds. Here's how those 38 machines become one system a single crew member can run.

Touchscreen control panel with an emergency stop button, used to operate the stage rigging — The touchscreen control panel operating all 38 hoists, with a physical emergency stop always within reach.

Technical detail

One industrial PLC runs the motion for the entire system, sequencing all 38 hoists so they move in the right order and can be corrected quickly if a cue changes. A separate safety-rated controller handles every safety signal independently of the motion logic, and both travel over the same redundant network, built as two loops, so a single connection fault doesn't take the system down. The architecture is open by design: no fixed motor brand or fieldbus, so it isn't locked to one supplier as the system grows or changes.

In daily use

The crew operates from whichever of the two control panels matches the hall in use, always with a full view of the stage they're actually moving. Hoists that used to need mechanical coupling can now be grouped and limited entirely in software (including height limits that stop a hoist before it can damage the set), so day-to-day operation stays simple even as the system's capabilities have grown.