Heavy Duty Scaffold Beam Clamp Girder Coupler for Construction Scaffolding

Short Description:

HuaYou scaffold beam clamp, also known as girder coupler, gravlock coupler or scaffold C‑clamp, is a critical scaffold fitting to lock OD48.3mm scaffold tubes onto I‑beams, H‑beams and steel girders. Normally applied in pairs for suspended scaffolding, bridge and heavy‑load support projects. We provide rigid, swivel, extension and JIS‑standard beam clamps with full‑range third‑party test certificates to meet global construction safety requirements。


Product Detail

Product Tags

As a vital Scaffold Fitting, HuaYou Scaffold Beam Clamp is forged from solid S235 steel, connecting standard 48.3mm scaffold tubes to steel or aluminum beam flanges without drilling or welding.

HuaYou provides core styles including Fixed beam Coupler for rigid 90° connections and Swivel(Rotation) Beam Clamps for flexible multi-angle layouts to match complex building frameworks. We also supply extended beam clamps for flanges up to 81mm thick, plus JIS standard models suited for maximum 36mm flanges, while AS 1576 compliant clamps fit flanges within 45mm.

All HuaYou beam clamps must be installed in pairs. Each product reaches a minimum ultimate load of 30kN with slippage under 6mm at a 12.5kN working load, fully meeting global construction safety standards. They are widely applied in suspended scaffolding, cantilever scaffolding, bridge engineering and heavy-duty support scaffolding projects.

Scaffold Beam Clamp Weight

 No Items Weight Standard
1 Right Angle Beam Clamps 1.50KG AS 1576
2 Swivel Beam Clamps 1.65 KG AS 1576
3 Extended Beam Clamps 1.78 KG AS 1576
4 JIS Fixed Clamps 1.00 KG JIS A 8951
5 JIS Swivel Clamps 1.00 KG JIS A 8951
6 Korean Fixed Clamps 1.00 KG KSD 3501
7 Korean Swivel Clamps 1.00 KG KSD 3501

Beam Flange Compatibility

AS1576 normal beam clamp: Max flange thickness 45 mm
Extension beam clamp: Max flange thickness  81 mm
JIS / KSD standard beam clamp: Max flange thickness 36 mm

Why Choose HuaYou Scaffold Beam Clamps

Strict Production & Batch Testing

Every batch of HuaYou Gravlock Coupler and Girder Beam Coupler undergoes load-slip and distortion tests compliant with AS 1576 and JIS A 8951 standards. SGS third-party inspection reports are supplied with all orders to verify reliable on-site safety performance.

Certified Quality System

HuaYou is an ISO 9001 and CE certified manufacturer of scaffolding fittings. Mill test certificates (MTC) for all Gravlock Coupler and Girder Beam Coupler products can be issued on demand.

Wide-range Model Coverage

We manufacture rigid, swivel, extended, JIS and Korean-spec beam clamps including Gravlock Coupler and Girder Beam Coupler, catering to scaffolding project demands across Asia, Australia, Europe and worldwide regions.

High-quality Anti-corrosion Treatment

All Gravlock Coupler and Girder Beam Coupler adopt electro-galvanized or hot-dip galvanized surface treatment, effectively resisting rust in outdoor, coastal and damp construction sites for long-term repeated use.

Custom & OEM Support

Custom OEM services are available for global scaffolding and formwork enterprises purchasing Gravlock Coupler and Girder Beam Coupler, including customized logo marking and exclusive packaging plans.

Flexible Delivery Solutions

Diversified shipping terms for bulk orders of Gravlock Coupler and Girder Beam Coupler: FOB China port, CIF destination port and door-to-door delivery, supported by short production lead times.

Professional Technical Support

Fast response technical consultation, product selection guidance and full after-sales service for contractors and distributors purchasing Gravlock Coupler and Girder Beam Coupler.

Scaffold Beam Clamp Applications

Suspended / Cantilever scaffolding erection
Bridge, highway and large‑scale infrastructure construction
Heavy‑load support scaffolding systems
Steel‑structure building working platforms
Industrial plant maintenance, oil‑gas project temporary access
Formwork supporting systems

Fixed beam Coupler (1)
Fixed beam Coupler (3)
Fixed beam Coupler (2)

FAQS

Q1: Do I need to use beam clamps in pairs?

A: Yes. Scaffold beam clamps are always used in pairs. One side connects to OD48.3 mm scaffold tube, and the other clamps onto beam flange to get stable connection.

Q2: What beam flange thickness can your beam clamps handle?

A: AS 1576 regular beam clamps fit up to 45 mm flange. JIS‑standard clamps fit up to 36 mm. For beam flange thickness from 45 mm‑81 mm, choose HuaYou extension beam clamps.

Q3: What load capacity can HuaYou beam clamps achieve?

A: Minimum ultimate load capacity reaches 30 kN. Slippage keeps less than 6 mm under 12.5 kN working load, complying with international scaffolding safety standards.

Q4: Can you provide third‑party test reports?

A: Yes. SGS test reports, slip‑distortion test documents and material mill certificates(MTC) can be supplied for your orders.

Q5: Can you accept OEM orders?

A: OEM service is available, including custom logo marking, special‑requirement packaging for distributors and scaffolding enterprises.


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