Professional aluminum ground support tower for 290×290 mm (ST34 / 12″×12″) square truss. Safely raises and supports horizontal truss grids for lighting, LED walls, audio, and stage production—indoor or outdoor.
Model
ST34 Tower System
Series
ST34 Ground Support / SPEEDTRUSS
Compatibility
ST34 / 290×290 mm square truss
Material
6082-T6 aluminum + steel base
Connection
Conical spigot + pin + R-clip
Components
Sleeve block, top head, steel base, hinges, outriggers (optional)
The 290mm Ground Support Tower System is a modular lifting solution designed for event production, touring, and fixed installations. Built around standard 290×290 mm square aluminum truss, the system uses vertical tower sections, a traveling sleeve block, a top head block with integrated pulley, and a heavy-duty steel base to lift horizontal truss structures without overhead rigging.
The sleeve block slides along the vertical tower and provides multi-directional connection points for your horizontal truss grid. Internal guide rollers ensure smooth, controlled vertical travel during lift and lowering. The steel base features swivel casters for positioning and adjustable leveling feet for stable operation on uneven floors.
Ideal for goal-post setups, small roof grids, LED video walls, line arrays, and trade-show booths. Compatible with conical spigot connector systems standard to F34 / 290mm truss worldwide. Package typically includes vertical tower segment(s), sleeve block, top head block with pulley, steel base with wheels & leveling jacks, couplers, pins & safety clips. Chain hoist sold separately.
Key features
Compatible with 290×290 mm (ST34 / 12″×12″) square truss
Sleeve block with guide rollers for smooth vertical travel
Top head block with pulley for manual or electric chain hoist
Steel base with casters + leveling jacks for stable operation
6082-T6 aluminum construction — high strength, lighter than steel
Quick conical spigot + pin + R-clip assembly for fast rigging
Indoor / outdoor use for touring, rental, and fixed installations
