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| Customization: | Available |
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| Connection Type: | Clamp Connection |
| Finish: | Galvanized |
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Right Angle Coupler
Right Angle Coupler is used to connect two scaffolding tubes at 90 degrees, mainly for fixing ledgers to standards. It offers strong load-bearing capacity, anti-slip performance, and is made from durable forged or pressed steel. The galvanized finish provides good corrosion resistance for indoor and outdoor use.
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Parameter
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Specification
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Product Name
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Right Angle Coupler
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Adaptation pipe diameter
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Usually fits standard scaffolding tubes with an outer diameter of 48.3mm
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Material
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High-strength steel (e.g., Q235)
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Connection Angle
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Fixed 90° right angle
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Fastening Method
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Uses high-strength bolts (commonly grade 8.8) for secure fastening
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Surface Treatment
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Mostly galvanized (electro-galvanized or hot-dip galvanized) to enhance corrosion resistance, suitable for construction
environments
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Executive Standard
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Complies with international standards such as EN74 and BS1139 (ensuring quality and safety)
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weight
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Approximately 1.3-1.5kg per unit (slightly varying by material and craftsmanship)
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Parameter
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Specification |
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Product Name
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Board Retaining Clamp |
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Suitable Board/Frame
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Compatible with standard scaffolding planks (e.g., wooden/metal planks with thickness 20-50mm) |
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Material
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High-strength steel (e.g., Q235 or Q355) |
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Clamping Range
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Adjustable to fit plank thickness, typically 20-50mm |
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Fastening Method
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Equipped with high-strength bolts (e.g., grade 8.8) for secure locking |
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Surface Treatment
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Galvanized (electro-galvanized or hot-dip galvanized) for corrosion resistance |
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Working Load
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Designed to bear plank weight and worker load, usually up to 500-800N |
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Weight
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Approximately 0.5-0.8kg per unit (varies by size and material) |
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Standards Compliance
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Complies with relevant industry standards (e.g., EN 12811, AS/NZS 1576) |
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Parameter
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Specification |
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Product Name
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Girder Coupler |
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Suitable Application
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Used to connect girders, trusses, or large structural members to scaffolding systems or steel frames |
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Material
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High-strength alloy steel (e.g., Q355) for heavy load-bearing capacity |
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Connection Type
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Designed for attaching girders to vertical/horizontal supports, with adjustable clamping ranges |
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Load Capacity
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Typically rated for 2-5 tons (varies by model; specific load depends on size and material) |
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Fastening Method
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Heavy-duty bolts (grade 8.8 or higher) with lock nuts to prevent loosening |
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Surface Treatment
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Hot-dip galvanized for superior corrosion resistance in outdoor/industrial environments |
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Compatibility
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Adaptable to various girder profiles (e.g., I-beams, H-beams) and scaffolding tubes |
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Standards Compliance
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Complies with EN 1090, AS 4100, or relevant structural steel standards |
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Weight
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Approximately 3-6kg per unit (varies by size and load rating) |
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Parameter
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Specification |
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Product Name
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Sleeve Clamp |
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Main Function
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Used to connect or extend scaffolding tubes, pipes, or cylindrical components by sleeving and clamping |
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Suitable Pipe Diameter
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Compatible with standard scaffolding tubes (e.g., outer diameter 48.3mm) or pipes of similar size; some models are adjustable for 40-50mm diameters |
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Material
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High-strength carbon steel (e.g., Q235, Q345) or alloy steel for durability |
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Clamping Mechanism
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Equipped with a split sleeve design and high-strength bolts (grade 8.8) for tight gripping; ensures axial alignment of connected parts |
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Surface Treatment
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Hot-dip galvanization or electro-galvanization to resist rust and corrosion, suitable for indoor/outdoor construction environments |
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Load Capacity
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Designed for axial loads, typically ranging from 1-3 tons (varies by size and material strength) |
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Length
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Standard length is 100-150mm (varies based on application; longer sleeves for extended connections) |
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Standards Compliance
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Complies with relevant scaffolding standards such as EN 74 or local construction codes |
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Weight
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Approximately 0.8-1.2kg per unit (varies by size and material thickness) |
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Parameter
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Specification |
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Product Name
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Swivel Coupler |
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Main Function
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Connects two scaffolding tubes at adjustable angles (not limited to 90°), allowing flexible angular adjustments in scaffolding structures |
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Suitable Pipe Diameter
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Compatible with standard scaffolding tubes (outer diameter 48.3mm is common; some models fit 42mm or 51mm tubes) |
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Material
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High-strength carbon steel (e.g., Q235) or alloy steel, ensuring load-bearing capacity and durability |
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Adjustable Angle Range
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Typically 0°-180° (can be locked at any angle within this range for versatile use) |
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Fastening Method
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High-strength bolts (grade 8.8 or 10.9) with washers and nuts for secure locking, preventing angle slippage under load |
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Surface Treatment
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Galvanized (electro-galvanized for basic protection or hot-dip galvanized for enhanced corrosion resistance in harsh environments) |
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Load Capacity
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Axial load: up to 10-15kN; Shear load: up to 8-12kN (varies by model and material quality) |
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Standards Compliance
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Complies with international standards such as EN 74, BS 1139, or GB 15831 (Chinese standard) |
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Weight
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Approximately 1.2-1.6kg per unit (varies by size and manufacturing process) |
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Parameter
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Specific Specification |
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Suitable Pipe Diameter
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Mainly 48.3mm, some can be compatible with steel pipes with diameters of 40 - 50mm. Common size combinations include 48.3mm×48.3mm and 48.3mm×60mm |
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Material
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Usually Q195, Q235 carbon steel; Q355 alloy steel is used for some high-performance requirements |
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Bolt Grade
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Mostly grade 8.8 high-strength bolts to ensure firm connection |
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Surface Treatment
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Common electro-galvanizing for general environments; hot-dip galvanizing with better protective performance for highly corrosive environments |
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Weight per Unit
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Approximately 0.6 - 0.65KG, varying with material thickness, craftsmanship and size |
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Nut Size
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Common specifications include 17mm, 19mm, 21mm, 22mm, 23mm, etc. |
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Executive Standard
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Complies with EN74 (European standard for small and medium-sized scaffolding components), BS1139 (British standard for scaffolding steel pipes and fittings), etc. |
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Suitable Plank Thickness
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Generally suitable for wooden planks, steel planks or composite planks with a thickness of 20 - 50mm |
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Anti-slip Performance
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Some products have excellent anti-slip performance. For example, Wellmade's pig-ear couplers, tested according to BS1139 - 2.2 standard, have an anti-slip failure load ≥1.07kN, and the standard surface anti-slip failure load ≥6.54kN |
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Packaging Method
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Usually 25 pieces/bag, 50 bags/pallet; customized packaging is also available upon request |
Production process
The production of scaffold couplers involves a precise and multi-step process to ensure high strength and safety. First, high-quality carbon steel is selected and cut into required sizes. The steel parts are then forged or cast into the coupler shape, followed by machining to achieve accurate dimensions and smooth surfaces. After machining, the couplers undergo heat treatment to enhance hardness and strength. Finally, each coupler is surface-treated-typically hot-dip galvanizing or electroplating-for corrosion resistance. Every piece is strictly inspected for structural integrity, dimensions, and coating uniformity before packaging and shipment, ensuring reliable performance in scaffolding systems.
Packaging & Shipping
Q1: What material are the couplers made of?
A: Scaffold couplers are made of high-quality carbon steel, ensuring durability and high load-bearing capacity.
Q2: What types of couplers are available?
A: Common types include right-angle (fixed) couplers, swivel (universal) couplers, sleeve couplers, and putlog couplers.
Q3: Are the couplers corrosion-resistant?
A: Yes, couplers are typically hot-dip galvanized or electroplated, providing excellent protection against rust and weather conditions.
Q4: What scaffolding systems are these couplers compatible with?
A: They are compatible with standard tube scaffolding, ringlock, cuplock, and other modular scaffolding systems.
Q5: What is the load capacity of the couplers?
A: Load capacity depends on the type and size of the coupler; all products comply with international standards such as BS 1139 and EN 74.
Q6: Can the couplers be reused?
A: Yes, they are durable and can be reused multiple times in various projects.
Q7: Can I place a custom order?
A: Yes, we accept custom orders for size, type, coating, and quantity to meet specific project requirements.
Q8: How are the couplers shipped?
A: Couplers are bundled, boxed, and labeled carefully to ensure safe delivery for bulk orders or container shipments.
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