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4m Steel Scaffolding Ladder Beam (300mm Width, Galvanized & Painted)
The 4m Steel Scaffolding Ladder Beam is a highly reliable structural component designed to create medium-span bridges, clear openings, and suspended platforms within scaffolding systems. With an overall width (depth) of 300mm, this steel unit beam provides exceptional load-bearing capacity and rigidity, allowing scaffolders to span gaps where ground support is impossible or obstructed.
Manufactured from high-yield carbon steel, the 4-meter length offers the perfect balance between manageable manual handling on-site and robust spanning capability. Engineered to integrate seamlessly with standard scaffolding tubes and fittings, these beams are available in both Hot-Dipped Galvanized and Painted finishes. This ensures superior resistance to corrosion and mechanical wear, making them a durable, high-ROI asset for international scaffolding contractors and rental fleets.
Technical Specifications
| Technical Category | Specification Details |
| Product Name | Steel Scaffolding Ladder Beam / Unit Beam |
| Overall Length | 4.0 Meters (Approx. 13.1 ft) |
| Overall Width (Depth) | 300mm |
| Chord & Web Tube OD | Designed for standard 48.3mm (1.5") scaffolding couplers |
| Material Grade | High-Tensile Carbon Steel (e.g., Q345/Q235 or equivalent) |
| Welding Process | Fully saddle-welded joints for maximum shear strength |
| Surface Treatment | Hot-Dipped Galvanized (HDG) / Painted |
| Load Capacity | High strength-to-weight ratio for medium-span bridging |
Key Advantages
Product Applications
Medium-Span Bridging: Creating safe working platforms over fragile roofs, alleyways, entrances, or ground obstacles where vertical standards cannot be placed.
Suspended Scaffolding: Acting as the primary support structure for hanging or drop scaffolding on bridges and offshore rigs.
Temporary Roof Structures: Serving as robust structural trusses to support weather protection sheeting or temporary roofing over construction sites.
Cantilever Scaffolding: Providing the rigid structural backbone needed to project scaffolding outwards from a building’s facade.
Packaging & Delivery
Frequently Asked Questions (FAQ)
Q: Can standard scaffold fittings be used to connect this ladder beam?
A: Yes. The chords of our ladder beams are manufactured to a standard outer diameter (usually 48.3mm), allowing you to use standard drop-forged double couplers and swivel couplers to secure the beam to your scaffold standards safely.
Q: Should I choose the Galvanized or Painted finish for my 4m ladder beams?
A: If the beams will be continuously exposed to outdoor weather, rain, or corrosive environments (like industrial plants), Hot-Dipped Galvanized is the superior choice for long-term ROI. If they are for short-term, indoor, or budget-restricted projects, Painted offers a highly cost-effective alternative.
Q: How do you ensure the welds don’t crack under heavy loads?
A: We utilize advanced saddle-welding techniques, where the rungs are shaped to hug the circular profile of the main chords before welding. This maximizes the weld surface area, ensuring immense shear strength and preventing cracking under tension.
Q: Do you supply load capacity charts for structural engineering calculations?
A: Absolutely. We understand that structural engineers require precise data for bridging spans. We can provide technical data sheets outlining the safe working loads (SWL) and bending moments for the 4m span upon request.
Inventory
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