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Also known as a universal coupler or angle coupler, it connects two steel pipes that intersect at any angle for diagonal bracing and scissor bracing in construction scaffolding.
1. Product Description
A swivel coupler, also known as a universal coupler or angle coupler, is a key connecting component in construction scaffolding. It is used to connect two steel pipes that intersect at any angle, adapting to complex structures such as diagonal braces and scissor bracing.
Design note: The swivel design enables flexible angle adjustment from 0 to 180 degrees, making it a critical part for ensuring the stability of irregular scaffolding structures.
UNIVERSAL CONNECTION
Connects parallel or inclined members with angle adjustment from 0 to 180 degrees.
SCAFFOLDING STABILITY
Critical for diagonal bracing, scissor bracing, and lateral reinforcement of scaffolding.
Material is Q235 carbon steel, sizes are 48.3 x 48.3 mm and 48.3 x 60.3 mm, and the standard surface finish is electro galvanized. Standards include BS1139 and EN74.
The tube and coupler scaffolding system is the best solution for construction or maintenance works, offering economic convenience, safety, and quality with drop forged scaffolding clamps.
✓ Drop forged
Q235 forging for strength.
✓ 0 - 180 degree
Flexible angle adjustment.
✓ BS1139 / EN74
Scaffolding coupler standards.
✓ Zinc / HDG
Galvanized surface options.
By Manufacturing Process
Drop forged Q235 steel body; pressed and stamped versions available in the market.
By Type
90 / 110 degree swivel coupler; 90 / 110 degree double coupler; fixed coupler; putlog coupler; sleeve coupler; board retaining coupler; inner joint pin.
By Style
British type couplers; European / EN74 style options.
By Size
48.3 x 48.3 mm (pipe to pipe); 48.3 x 60.3 mm (pipe to larger tube).
By Finish
Electro galvanized; hot-dip galvanized; plain / painted on request.
By Standard
BS1139; EN74; custom per project specification.
Classification note: Common market products include drop forged and pressed or stamped couplers, in British and European styles. This range covers swivel, fixed, putlog, sleeve, and board retaining couplers with the main sizes and finishes used in tube and coupler scaffolding systems.
01 / DIAGONAL BRACING
Connect diagonal bracing members to vertical and horizontal bars.
02 / SCISSOR BRACING
Angle connection for scissor bracing in scaffolding.
03 / LATERAL REINFORCEMENT
Lateral bracing for open-shaped and linear double-row scaffolding.
04 / TEMPORARY SUPPORTS
Angle adjustment of temporary support structures.
05 / CONSTRUCTION
Tube and coupler scaffolding for construction works.
06 / MAINTENANCE WORKS
Reliable access scaffolding for maintenance projects.
| Material Type | Characteristics | Typical Finish |
|---|---|---|
| Q235 Carbon Steel | Drop forged for strength and durability in scaffolding. | Electro galvanized |
| Galvanized Steel | Zinc protection for outdoor scaffolding use. | Zinc / HDG |
| Hardware | Bolts, nuts, and pins supplied with the coupler set. | Per specification |
Electro Galvanized
Standard bright zinc finish for scaffolding couplers.
Hot-Dip Galvanizing
Thick zinc protection for outdoor and wet site conditions.
Plain / Painted
Plain or painted option available on request.
Custom Coating
Special finishes per project specification.
0 - 180 Degree Swivel
Flexible angle adjustment for inclined and parallel members.
Drop Forged Body
Q235 drop forged clamp for strength and safety.
BS1139 / EN74
Manufactured to common scaffolding coupler standards.
Set Supply
Supplied with bolts, nuts, and pins as sets.
Code requirements: The centerline of the swivel coupler should be no more than 150 mm from the main node. The lap length of vertical bars shall be at least 1 m with 3 swivel couplers fixed at equal intervals, and the edge of the end cover shall be at least 100 mm from the end of the bar.
48.3 x 48.3 mm48.3 x 60.3 mmQ235 Drop ForgedElectro GalvanizedBS1139 / EN740 - 180 Degree
| Size | Application | Note |
|---|---|---|
| 48.3 x 48.3 mm | Pipe to pipe connection | Standard scaffold tube |
| 48.3 x 60.3 mm | Pipe to larger tube | Mixed-size systems |
Other pipe sizes and coupler types are available on request.
Kraft boxes
With inner partitions, thread protection and full labeling.
Bulk cartons
Five-layer corrugated, waterproof sealed and strapped.
Pallets / wooden cases
ISPM-15 heat treatment certification available.
Resealable polybags
For samples and low-volume orders.
VCI anti-rust packaging
For long-distance overseas shipment.
Custom OEM packaging
Labels, barcodes and packaging; MOQ may apply.
01 Raw Material Inspection
02 Drop Forging
03 Trimming / Machining
04 Drilling
05 Assembly
06 Surface Treatment
07 Dimensional Inspection
08 Angle Test
09 Load Test
10 Set Assembly
11 Packaging & Labeling
12 Outgoing QC
Dimensional inspection
Bore size, bolt spacing, and overall dimensions per standard.
Angle test
Swivel rotation range and locking verified by sample test.
Load test
Coupler strength verified per BS1139 / EN74 requirements.
Coating check
Galvanized coating quality and thickness verified.
Material certificate
Chemical composition and heat/lot traceability on request.
Final verification
100% visual inspection, set completeness and traceability.
1. What is a swivel coupler used for?
It connects two scaffold pipes that intersect at any angle, for diagonal braces, scissor bracing, and temporary supports.
2. What sizes are available?
48.3 x 48.3 mm and 48.3 x 60.3 mm for scaffold tube connections.
3. What standards do they meet?
BS1139 and EN74 are supported.
4. What types are available on the market?
90 / 110 degree swivel and double couplers, fixed, putlog, sleeve, board retaining couplers, and inner joint pins.
5. What surface finishes are available?
Electro galvanized and hot-dip galvanized, with plain or painted options on request.
6. What are the key installation requirements?
The coupler centerline should be within 150 mm of the main node; vertical bar laps need at least 1 m with 3 couplers, and the end cover edge should be at least 100 mm from the bar end.
