Truss Tower Ground Support Base with Wheels for 290mm Spigot Trusses
The truss tower base provides ground support for truss pillars. Built from Q235 steel, it combines four swivel casters with four adjustable leveling feet for convenient base positioning and on-site leveling. The black frame features four connection points for attaching a 290×290mm spigot truss.
Connection :
Pins, R-clipsProduct Origin :
GuangzhouColor :
BlackSurface Finish :
Powder CoatingApplication :
Stage truss systems, Exhibition booths, Goalpost truss framesProduct Introduction
Truss Tower Ground Support Base with Wheels for 290mm Spigot Trusses

The truss tower base brings the tower connection, caster wheels and leveling feet together in one compact assembly. Four 3-inch swivel casters make the base easier to move into position during setup, while four adjustable feet allow individual adjustment at each corner. Two of the casters include brakes to assist with positioning. This is a practical base component for compatible truss tower systems used in outdoor event installations.
Product Specification
| Item | Specification |
| Product Type | Truss Tower Ground Support Base |
| Main Material | Q235 Steel |
| Dimensions | 743×743×250mm |
| Color | Black |
| Connection Center Spacing | 239×239mm |
| Casters | Four 3-inch Swivel Casters |
| Caster Brakes | Two Braked Casters and Two Unbraked Casters |
| Leveling Screw Specification | M20×250mm |
| Foot Plate Dimensions | 135×135mm |
Product Highlights

Q235 Steel Frame
The base uses a Q235 steel frame with a square perimeter and an X-shaped upper structure. The frame brings the truss mounting positions, caster assemblies and leveling feet into a single unit. Its black appearance coordinates with black truss structures and event equipment.

Four Casters for Base Positioning
Four 3-inch swivel casters help crews move and position the base during setup and dismantling. The swivel design allows changes in direction when aligning the base with the planned tower location. Two casters are fitted with brakes to help hold the base in position.

Adjustable Leveling Feet
Each corner is equipped with a screw-adjustable leveling foot, allowing the base to be adjusted at four separate points. The M20×250mm screws provide manual adjustment, while the 135×135mm foot plates form the ground contact surfaces. This makes it easier to level the base before assembling the tower system.
FAQ
Q: What is this truss base used for?
A: It forms the ground-level connection for a compatible truss pillar. The base combines truss mounting points, caster wheels and adjustable feet for positioning and leveling during installation.
Q: Which truss does this base fit?
A: This version is configured for 290x290mm spigot truss. Please confirm the truss dimensions and connector details before ordering, particularly when combining equipment from different manufacturers.
Q: Will this base fit truss from another manufacturer?
A: Compatibility depends on both the truss dimensions and the connection hardware. This base has four connection points with a center spacing of 239x239mm. Please provide your truss drawing and connector specifications so compatibility can be checked before ordering.
Q: What is the difference between the caster brakes and the leveling feet?
A: The caster brakes help hold the base during positioning. The four leveling feet provide separate corner adjustments for leveling and ground contact in the stationary setup.
Q: Does the base lift the truss tower?
A: The adjustable feet are used to level the base. They are not a tower lifting mechanism. Any lifting function requires a separately specified, compatible tower and lifting system.
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