Drop forged Double couplers
HuaYou forged double coupler is a heavy-duty scaffolding coupler designed to connect scaffold tubes securely at a 90-degree angle. Manufactured to EN 74 and BS 1139 standards, it is available as a Class B high-load fitting for demanding construction applications. These scaffold fixed clamps feature zinc-plated or hot-dip galvanized finishes for reliable corrosion protection and long service life. The standard 48.3mm size is widely used, while customized sizes such as 60×48mm, 76×48mm, and 89×48mm are available for different scaffold tube requirements.
Drop Forged Double Couplers Size & Specification
| Code | Items | Function | Finishing | W.T(KG) |
| 1 | O.D 48x48mm Forged Double Coupler | Tube to Tube | Zinc-plated|HDG | 1.0-1.5 |
| 2 | O.D 60x48mm Forged Double Coupler | Prop to Tube | Zinc-plated|HDG | 1.45 |
| 3 | O.D 60x60mm Forged Double Coupler | Prop to Tube | Zinc-plated|HDG | 1.6 |
| 4 | O.D 76x48mm Forged Double Coupler | Prop to Tube | Zinc-plated|HDG | 1.95 |
| 5 | O.D 89x48mm Forged Double Coupler | Bridge Post to Tube | Zinc-plated|HDG | 2.35 |
Drop Forged Double Coupler Types
HuaYou supplies scaffold double couplers in British, German, Australian, and US types for different scaffolding systems. These drop forged couplers are available with different bolt, nut, weight, and size configurations.
British Type: Lightweight design with 1/2" bolt and 21mm cross nut, commonly manufactured to BS 1139 requirements.
German Type: Heavier 1.45kg design with M14 bolt, available in standard and quick-thread versions.
Australian Type: Approximately 1.17kg with a 23mm flange nut, suitable for AS 1576 scaffolding systems.
US Type: Heavy-duty I-bolt design, with 48.3mm, 2.36", 3.5", and customized sizes available.
HuaYou also supplies BS1139 standard couplers and EN74 standard couplers with electro-galvanized or hot-dip galvanized finishes to meet different project requirements.
Why Choose HuaYou Drop Forged Double Couplers?
1. High Load-Bearing Performance
Drop forged construction provides excellent strength and structural integrity, making the couplers suitable for heavy-duty scaffolding and formwork applications.
2. Multiple Standard Options
Available in British, German, Australian, and US types, with BS 1139 and EN 74 standard options to match different regional scaffolding systems.
3. Reliable Corrosion Protection
Electro-galvanized and hot-dip galvanized finishes are available. HDG options provide enhanced protection for demanding outdoor, marine, oil and gas environments.
4. Flexible Sizes & Configurations
Besides the common 48.3mm size, HuaYou supports customized tube diameters, bolt designs, nuts, weights, and specifications for specific project requirements.
Forged and Pressed Steel Scaffold Couplers Comparison
HuaYou provides both forged and pressed steel scaffold couplers to meet different construction requirements. Forged couplers are manufactured through drop forging technology, offering higher strength and load capacity for heavy-duty scaffolding applications. Pressed steel couplers are a cost-effective option commonly used with standard scaffold tubes, including BS 1139 and JIS 3444 systems.
Forged Double Coupler vs Pressed Steel Coupler
Forged double couplers are designed to create a fixed 90-degree connection between two scaffold tubes, providing a rigid and secure joint for scaffolding structures. Pressed steel double couplers are widely used for standard tube sizes such as 48.3mm O.D. scaffolding pipes. HuaYou also supplies JIS-type pressed couplers for 48.6mm scaffold tubes used in Japan, Korea, and Singapore markets.
Forged Double Coupler vs Swivel Coupler
Unlike fixed double couplers, swivel couplers allow scaffold tubes to be connected at adjustable angles, making them suitable for complex structures and angled supports. Swivel couplers are assembled with two rotating half clamps and are available in both forged and pressed steel designs.
All HuaYou forged and pressed scaffold couplers are manufactured according to BS 1139 and EN 74 standards, with reliable quality and surface treatment options for various scaffolding projects.
