What flange thickness range do your beam clamps cover?

Our standard clamps adjust for flanges between 8 mm and 50 mm thick—swivel variants extend capacity to 75 mm.

How much load can a single beam clamp support?

Each clamp is tested to 15 kN with a 1.5× safety factor, per BS EN 74 specifications.

Can I use beam clamps on coated or painted beams?

Yes—ensure the coating is less than 3 mm thick and free of loose particles for proper jaw engagement.

How do swivel beam clamps differ from fixed-jaw clamps?

Swivel clamps allow the jaw to pivot ±15°, accommodating sloped or tapered flanges while maintaining full contact.

Where can I find detailed dimensional drawings?

Refer to pages 8–9 of the Avanza Brochure for full clamp profiles, weight data, and part numbers.

Beam Clamps: Secure and Versatile Solutions for Structural Connections

Beam clamps—also known as Girder Couplers—are essential components for attaching scaffold tubes and accessories to I-beams, girders, and other structural members. Avanza Steel's beam clamps are precision-engineered from drop-forged mild steel, finished with robust hot-dip galvanization, and rated to 15 kN per clamp. They ensure fast, secure, and repeatable connections in both H-frame and Cuplock scaffolding systems.

What Is a Scaffolding Beam Clamp?

A scaffolding beam clamp is a two-piece coupler designed to grip steel beams or girders without drilling or welding. The clamp’s adjustable jaws accommodate flange thicknesses from 8 mm to 50 mm, allowing scaffold tubes (48.3 mm OD) to be affixed directly to existing structures. This tool-free installation method preserves structural integrity and accelerates scaffold erection and dismantling.

Key Advantages:

No Welding or Drilling
Protects beam integrity and coating.
Rapid Installation
Wrench-tightened bolts secure clamps in under 30 seconds.
High Load Capacity
Each clamp is load-tested to 15 kN with a 1.5× safety factor.
Universal Compatibility
Fits most I and H-section steel members and standard 48.3 mm scaffold tubes.

Technical Specifications

Attribute	Details
Material	Drop-forged mild steel (IS 2062 Grade A)
Finish	Hot-dip galvanized per ASTM A153 (≥ 85 µm zinc)
Load Rating	15 kN per clamp (tested to BS EN 74 standards)
Flange Capacity	8 mm – 50 mm thickness (adjustable)
Tube Compatibility	Ø 48.3 mm MS scaffold tubes
Weight per Clamp	1.2 - 1.4 kg for 48.3 mm dia pipe
Bolt/Nut Specification	Grade 8.8 high-tensile bolts; hand-tighten then 25 Nm torque
Compliance	IS 2750, BS EN 74, ISO 9001:2015

Components & Variants

Fixed-Jaw Beam Clamp
Single fixed jaw and one adjustable jaw. Ideal for uniform flange thickness.
Swivel Beam Clamp
Adjustable jaw pivots ±15° for sloping beams or eccentric connections.
Heavy-Duty Girder Clamp
Wider jaw capacity (up to 75 mm) for thick structural steel; reinforced gussets on jaws.
Spigot-Joint Beam Clamp
Incorporates a spigot pin for seamless vertical coupler extension into a tube-and-pin system.

Applications & Use Cases

Edge Protection & Guardrails

Attach horizontal guardrail tubes directly to building beams for temporary edge safety systems.
Staircase & Access Ramp Supports

Secure stair stringers and handrails to structural flanges without disrupting underlying steelwork.
Service Support Racks

Mount pipe racks, cable trays, and duct supports to overhead girders using beam clamps as the primary fixing.
Event & Stage Rigging

Clamp scaffold tubes to overhead steel trusses for lighting grids, speaker arrays, and banner mounts.

Installation & Best Practices

Pre-Installation Check
Ensure flange surfaces are clean of paint drips, rust, or debris to achieve full contact.
Positioning
Place fixed jaw against one side of the beam flange, adjust the opposing jaw to the flange thickness.
Tightening
Hand-tighten the high-tensile bolt until snug, then apply a calibrated torque wrench to 25 Nm to secure.Avoid over-torqueing which can deform the beam clamp body.
Tube Insertion
Insert scaffold tube into the clamp socket and fasten with the integrated coupling bolt to 25 Nm.
Inspection
Verify clamp stability by applying a lateral force of 1 kN; ensure no slippage occurs.

Maintenance & Lifecycle

Routine Inspection
Before each use, check for corrosion under the jaws and ensure bolts operate smoothly.
Cleaning
Wipe down clamps after exposure to concrete or corrosive environments; apply light machine oil to threads.
Re-Galvanization
For extensively used clamps, consider periodic re-coating every 500 cycles to maintain corrosion resistance.
End-of-Life Recycling
All MS components are 100 % recyclable, supporting Avanza Steel’s sustainability pledge.

Secure your next scaffold-to-structure connection with Avanza Steel’s reliable beam clamps:

👉 Download the full Product Brochure for detailed part codes, dimensional drawings, and load charts.

👉 Contact our team at avanzasteel@gmail.com or +91 33 4000 7575 to request a site-specific quote, arrange a factory tour, or schedule an on-site technical consultation.