Overview
Small diameter trusses are essential in the entertainment and exhibition industries for their versatility and strength. Typically made from aluminum alloy, these trusses range from 20cm to 50cm in diameter, balancing portability with load capacity. Their modular design allows rapid assembly using clamps or spigots, making them ideal for temporary installations. Unlike larger truss systems, small-diameter variants prioritize ease of transport and setup without compromising stability. They are widely used in concerts, trade shows, and outdoor events where quick deployment is critical. The standardized fittings ensure compatibility with accessories like lighting brackets and safety wires.
Structure and Working Principle
These trusses consist of interconnected tubular sections forming triangular or square units, a design that distributes weight evenly. The joints are reinforced with steel bolts or quick-lock mechanisms to prevent flexing under stress. Aluminum alloys (e.g., 6061-T6) are favored for their corrosion resistance and malleability. Load-bearing capacity depends on the truss profile and wall thickness. For instance, a 30cm-diameter aluminum truss can typically support 150–300kg uniformly. Engineers calculate dynamic loads (e.g., moving lights) at 50% of static ratings to ensure safety. The open framework also facilitates cable management for AV systems.
Key Features
Modularity is a standout feature, enabling configurations like arches, towers, or overhead grids. Anodized coatings protect against UV damage and scratches, extending lifespan. Some models include pre-wired channels for power and data cables, reducing setup time. Weight savings are significant—aluminum trusses weigh 30–50% less than steel equivalents. Despite this, they meet ISO 9001 and EN 1090 standards for structural integrity. For outdoor use, optional cross-bracing kits enhance wind resistance up to 80km/h.
Application Areas
Primary applications include concert stages, where trusses suspend spotlights and speakers. Exhibition halls use them for booth skeletons or signage mounts. In film production, they form lightweight rigs for cameras and microphones. Emerging uses include drone light shows, where trusses serve as launch platforms. Retail spaces leverage their sleek design for product displays. Always verify venue regulations, as some require fire-retardant certifications for indoor events.
Maintenance and Precautions
Inspect trusses before each use for cracks or bent connectors. Clean with mild detergent to remove dirt; avoid abrasive tools that damage coatings. Lubricate bolt threads annually with silicone spray to prevent seizing. Storage should be in dry conditions, ideally hung vertically to prevent deformation. For heavy loads, use load mats to distribute pressure on uneven surfaces. Never exceed the manufacturer’s maximum span length without additional supports.
B2B Procurement Guide
Bulk purchases (50+ meters) often qualify for 10–15% discounts. Leading manufacturers include Global Truss and Eurotruss, offering OEM customization like branded colors. MOQs vary but start at 20 meters for standard sizes. Request test reports for load certifications. Shipping costs can be high due to bulkiness—consider foldable designs for logistics savings. For trade shows, rental partnerships with local vendors may reduce capital expenditure.
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