How to Choose a Custom Spigot Truss Manufacturer for Events

When planning an event, the structural integrity of your staging and rigging is non-negotiable. For many productions, a custom spigot truss manufacturer for events is the key to achieving both safety and design flexibility. Spigot trusses—also known as pin or cone trusses—are popular because they assemble quickly without loose bolts, making them ideal for touring and temporary structures. But not all manufacturers deliver the same quality. This guide explains what to look for, using real specifications from a China-based factory that produces TÜV-tested trusses.

Why Choose a Custom Spigot Truss?

A spigot truss uses conical connectors that slip into the ends of each truss section, secured by a pin or clamp. This design speeds up assembly and breakdown, reducing labor costs and setup time. For events, this means more time for lighting, sound, and stage design. Customization allows you to get the exact dimensions, curves, or shapes your event requires—whether it's a curved arch, a custom-shaped stage, or a specific span.

Key Specifications to Evaluate

When comparing manufacturers, pay close attention to the materials and construction. The trusses listed below are made from aluminum alloy 6082 or 6061-T6, both common in structural applications for their strength-to-weight ratio. Main tubes, sub tubes, and brace tubes are the primary load-bearing members. Thicker walls generally mean higher load capacity, but also more weight. For example, the WRS-4060 Square Truss uses a 50x3mm main tube, 50x2mm sub tube, and 30x2mm brace tube, while the WRS-29 uses a 25x2mm sub tube. These differences affect performance.

Load Tables: The Backbone of Safety

A reputable manufacturer will provide load tables for each truss model. These tables indicate the maximum distributed load (kg/m) and point load (kg) for various spans. Always consult these numbers for your specific configuration. Here are examples from the factory's catalog:

• WRF-29 Ladder Truss: Main tube 50x3mm, sub tube 25x2mm, brace tube 20x2mm. At a 3m span, it supports 168 kg/m distributed or 115 kg point load. At 6m, the numbers drop to 26 kg/m and 10 kg.
• WRT-29 Triangle Truss: Main tube 50x3mm, sub tube 30x2mm, brace tube 20x2mm. At 4m span: 250 kg/m distributed, 500 kg point load. At 8m: 67 kg/m and 268 kg.
• WRS-29 Square Truss: Main tube 50x3mm, sub tube 25x2mm, brace tube 20x2mm. At 4m span: 488 kg/m distributed, 1466 kg point load. At 6m: 317 kg/m and 948 kg.
• WRS-30 Square Truss: Same specs as WRS-29, with identical load tables.
• WRS-40 Square Truss: Main tube 50x3mm, sub tube 30x2mm, brace tube 25x2mm. At 5m span: 465 kg/m distributed, 644 kg point load. At 8m: 176 kg/m and 560 kg.
• WRS-4060 Square Truss: Main tube 50x3mm, sub tube 50x2mm, brace tube 30x2mm. At 6m span: 403 kg/m distributed, 1209 kg point load. At 9m: 210 kg/m and 945 kg.

These numbers are TÜV-tested, meaning they have been verified by an independent German certification body. Always ask for the test reports.

Customization Options

The factory offers several models that can be customized:

• WR-04 Customized Shaped Truss – for unique geometries
• Customized Shaped Truss – general custom shapes
• WRF-29 Ladder Truss – available in lengths from 50cm to 300cm
• WRT-29 Triangle Truss – lengths from 50cm to 400cm
• WRS-29, WRS-30, WRS-40, WRS-4060 Square Trusses – various lengths up to 400cm

When requesting a custom design, provide your span, load requirements, and any aesthetic preferences. The manufacturer should offer engineering support to ensure your design meets safety standards.

Sourcing Tips for Event Buyers

1. Verify certifications: Look for TÜV Rheinland certification and ISO 9001:2015 for quality management.
2. Review load tables: Ensure they provide data for the spans you need. If not, ask for it.
3. Check material specs: Confirm the alloy and tube dimensions.
4. Ask for samples: If possible, request a sample section to inspect weld quality and finish.
5. Consider shipping: A factory-direct supplier can often provide better logistics, but always confirm incoterms and packaging.

FAQ

Q: What is the difference between a spigot truss and a bolt truss?

A: Spigot trusses use conical connectors that slide together and are pinned, while bolt trusses require bolting flanges. Spigot trusses assemble faster and are often preferred for events where speed is critical.

Q: Can I get a custom shape for a specific stage design?

A: Yes, the factory offers customized shaped trusses, such as the WR-04 and Customized Shaped Truss models. Provide your design specifications, and they can manufacture to your requirements.

Q: How do I interpret the load table?

A: The load table gives the maximum distributed load (kg per meter) and point load (kg) for a given span. For example, the WRS-29 at a 4m span can support 488 kg/m evenly distributed, or 1466 kg at a single point. Always ensure your actual load does not exceed these values.

Q: What materials are used in these trusses?

A: The trusses are made from aluminum alloy 6082 or 6061-T6, which are known for their strength and corrosion resistance. The main tubes are typically 50x3mm, with sub and brace tubes varying by model.

By following this guide and working with a manufacturer that provides transparent specifications, you can ensure your event's truss system is both safe and effective. For more details, explore the product pages linked above.