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Scaffolding Accessories Sleeve Coupler Scaffolding Coupler Scaffolding Butt Joint Coupler

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Product Description

Overview - Basic Information

Parameter Detail Specification
Model NO.coupler
MaterialSteel
TypeScaffold Couplers
Surface TreatmentHot-DIP Galvanized / Electroplated
Coupler TypeRight-Angle / Swivel / Sleeve / Putlog
Tube Compatibility48.3mm / 60.3mm Od
Load CapacityVaries by Type and Size
Compliance StandardBS 1139 / En 74 / ISO 9001
ReusabilityYes
PackagingBoxed & Labeled
CustomizableType, Size, Coating
ColorSilver / Metallic
ApplicationScaffolding / Construction / Industrial Support
Transport PackageBag
Specification25/bag
OriginChina
HS Code73089000
Production Capacity200 Tons/Month

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.
Sleeve Coupler Scaffolding Coupler
Scaffolding Accessories Sleeve Coupler
Scaffolding Butt Joint Coupler
Parameter Specification
Product NameRight Angle Coupler
Adaptation pipe diameterUsually fits standard scaffolding tubes with an outer diameter of 48.3mm
MaterialHigh-strength steel (e.g., Q235)
Connection AngleFixed 90° right angle
Fastening MethodUses high-strength bolts (commonly grade 8.8) for secure fastening
Surface TreatmentMostly galvanized (electro-galvanized or hot-dip galvanized) to enhance corrosion resistance
Executive StandardComplies with international standards such as EN74 and BS1139 (ensuring quality and safety)
WeightApproximately 1.3-1.5kg per unit (slightly varying by material and craftsmanship)

Board Retaining Clamp

Board retaining clamp fixes scaffolding planks, preventing sliding, shifting or lifting from external forces during construction to ensure worker safety; it features easy installation, compatibility with various planks and crossbars, high-strength steel construction, anti-corrosion treatment and compliance with safety standards, ensuring stability and durability.
Sleeve Coupler Scaffolding Coupler
Scaffolding Accessories Sleeve Coupler
Scaffolding Butt Joint Coupler
Parameter Specification
Product NameBoard Retaining Clamp
Suitable Board/FrameCompatible with standard scaffolding planks (e.g., wooden/metal planks with thickness 20-50mm)
MaterialHigh-strength steel (e.g., Q235 or Q355)
Clamping RangeAdjustable to fit plank thickness, typically 20-50mm
Fastening MethodEquipped with high-strength bolts (e.g., grade 8.8) for secure locking
Surface TreatmentGalvanized (electro-galvanized or hot-dip galvanized) for corrosion resistance
Working LoadDesigned to bear plank weight and worker load, usually up to 500-800N
WeightApproximately 0.5-0.8kg per unit (varies by size and material)
Standards ComplianceComplies with relevant industry standards (e.g., EN 12811, AS/NZS 1576)

Girder Coupler

Girder Coupler, a key scaffolding component, connects beams/girders for stability, used widely in construction, industrial projects, stage building, etc., often in pairs. It fits 48.3mm tubes; some with 100mm openings for channel steel. Made of Q235/Q355 steel with 8.8-grade bolts, galvanized, meeting standards like EN74.
Sleeve Coupler Scaffolding Coupler
Scaffolding Accessories Sleeve Coupler
Scaffolding Butt Joint Coupler
Parameter Specification
Product NameGirder Coupler
Suitable ApplicationUsed to connect girders, trusses, or large structural members to scaffolding systems
MaterialHigh-strength alloy steel (e.g., Q355) for heavy load-bearing capacity
Connection TypeDesigned for attaching girders to vertical/horizontal supports
Load CapacityTypically rated for 2-5 tons (varies by model and size)
Fastening MethodHeavy-duty bolts (grade 8.8 or higher) with lock nuts to prevent loosening
Surface TreatmentHot-dip galvanized for superior corrosion resistance in outdoor environments
CompatibilityAdaptable to various girder profiles (e.g., I-beams, H-beams) and scaffolding tubes
Standards ComplianceComplies with EN 1090, AS 4100, or relevant structural steel standards
WeightApproximately 3-6kg per unit (varies by size and load rating)

Sleeve Clamp

Sleeve clamp, a fastener for tubular components, is compact, easy to install/remove, fits various pipe diameters (some with anti-slip design). Made of high-strength, anti-corrosion steel (wear and rust resistant), it connects/fastens pipes in scaffolding, pipeline installation, frame construction, etc., preventing loosening, ensuring stability, and suits quick assembly/disassembly like temporary supports.
Sleeve Coupler Scaffolding Coupler
Scaffolding Accessories Sleeve Coupler
Scaffolding Butt Joint Coupler
Parameter Specification
Product NameSleeve Clamp
Main FunctionUsed to connect or extend scaffolding tubes, pipes, or cylindrical components
Suitable Pipe DiameterCompatible with standard scaffolding tubes (e.g., outer diameter 48.3mm) or pipes of similar size
MaterialHigh-strength carbon steel (e.g., Q235, Q345) or alloy steel for durability
Clamping MechanismEquipped with a split sleeve design and high-strength bolts (grade 8.8)
Surface TreatmentHot-dip galvanization or electro-galvanization to resist rust and corrosion
Load CapacityDesigned for axial loads, typically ranging from 1-3 tons
LengthStandard length is 100-150mm (varies based on application)
Standards ComplianceComplies with relevant scaffolding standards such as EN 74 or local construction codes
WeightApproximately 0.8-1.2kg per unit (varies by size and material thickness)

Swivel Coupler

Swivel Coupler a rotatable scaffolding connector for cross pipes, offers 360° rotation for varied angles. Made of high-strength steel with anti-corrosion treatment, it fits standard pipes, easy to install. Used to fix non-right-angle pipes in scaffolding, suitable for arcs/diagonal supports in construction, bridges, etc., ensuring safety and adaptability.
Sleeve Coupler Scaffolding Coupler
Scaffolding Accessories Sleeve Coupler
Scaffolding Butt Joint Coupler
Parameter Specification
Product NameSwivel Coupler
Main FunctionConnects two scaffolding tubes at adjustable angles (not limited to 90°)
Suitable Pipe DiameterCompatible with standard scaffolding tubes (outer diameter 48.3mm is common)
MaterialHigh-strength carbon steel (e.g., Q235) or alloy steel
Adjustable Angle RangeTypically 0°-180° (can be locked at any angle within this range)
Fastening MethodHigh-strength bolts (grade 8.8 or 10.9) with washers and nuts
Surface TreatmentGalvanized (electro-galvanized or hot-dip galvanized)
Load CapacityAxial load: up to 10-15kN; Shear load: up to 8-12kN
Standards ComplianceComplies with international standards such as EN 74, BS 1139, or GB 15831
WeightApproximately 1.2-1.6kg per unit

Putlog Coupler

Putlog Coupler is used to fix scaffolding planks to scaffolds, ensuring construction safety, and is suitable for various scaffolds and temporary construction. It features a compact structure, quick assembly and disassembly, a load-bearing capacity of 500-1000N, compatibility with various planks and standard crossbars, anti-loosening and corrosion resistance, compliance with standards, and a balance of safety and efficiency.
Sleeve Coupler Scaffolding Coupler
Scaffolding Accessories Sleeve Coupler
Scaffolding Butt Joint Coupler
Parameter Specific Specification
Suitable Pipe DiameterMainly 48.3mm, compatible with steel pipes with diameters of 40 - 50mm
MaterialUsually Q195, Q235 carbon steel; Q355 alloy steel for high-performance requirements
Bolt GradeMostly grade 8.8 high-strength bolts to ensure firm connection
Surface TreatmentElectro-galvanizing for general environments; hot-dip galvanizing for highly corrosive environments
Weight per UnitApproximately 0.6 - 0.65KG, varying with material thickness
Nut SizeCommon specifications include 17mm, 19mm, 21mm, 22mm, 23mm
Executive StandardComplies with EN74, BS1139, etc.
Suitable Plank ThicknessGenerally suitable for wooden planks, steel planks or composite planks with a thickness of 20 - 50mm
Anti-slip PerformanceSome products have excellent anti-slip performance, tested according to BS1139 - 2.2 standard, with an anti-slip failure load ≥1.07kN
Packaging MethodUsually 25 pieces/bag, 50 bags/pallet; customized packaging is also available

Production Process

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.

About Us

We are an integrated R&D, production, and sales enterprise specializing in high-quality building materials and scaffolding solutions. Our product portfolio includes ringlock scaffolding, frame scaffolding, steel props, galvanized pipes, and related accessories, widely applied in construction and industrial sectors. The manufacturing base (established in 2014) spans 13,132 square meter with over 500 employees and 150+ production units, achieving annual outputs of 300,000 tons of steel pipes, 450,000 tons of Scaffolding, and 5 million Steel props. Equipped with R&D, quality control, and full operational departments, we hold 15+ technical patents. Our products cover 30+ domestic provinces through 150+ partnerships and export to Asia, Europe, Africa, and America, with annual sales exceeding $20 million.
Manufacturing Base Factory
Factory Production Facility
Factory Storage Yard

Certificates & Standards

Certificates EN12810 ISO9001
Our scaffolding products have obtained multiple internationally recognized certifications, including EN12810/EN12811 European standards, AS/NZS 1576 Australian/New Zealand standards, and the ISO 9001 quality management system certification. These certifications cover various aspects such as structural design, load-bearing capacity, corrosion resistance, and operational safety, ensuring compliance with strict safety and quality requirements for construction projects in different countries and regions. In addition, we possess complete third-party inspection reports and can provide inspection services from organizations such as SGS, TÜV, and BV upon customer request, further ensuring the international applicability and market access of our products.

Customer Feedback

Our customers worldwide highly appreciate the quality, durability, and ease of assembly of our scaffolding products. Many have praised our professional service, timely delivery, and reliable logistics support. Feedback consistently highlights the stability and safety of our scaffolding in various construction projects, as well as the flexibility of our OEM/ODM customization options. We value every customer's experience and continuously strive to improve our products and services to meet global standards.
Customer Feedback and Reviews

Packaging & Shipping

Packaging & Shipping Details
We offer professional and reliable sea freight services for scaffolding products worldwide. All components, including standards, ledgers, braces, and steel planks, are carefully sorted, bundled, or palletized to ensure safe handling during loading, transportation, and unloading. Our packaging is optimized to maximize container space, reduce movement, and minimize the risk of damage. In addition, we provide clear labeling and documentation to facilitate customs clearance and smooth delivery. With years of export experience, we ensure timely shipping, secure transit, and proper insurance coverage, giving our customers peace of mind and efficient logistics support for their global projects.

Frequently Asked Questions (FAQ)

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 severe weather conditions.

Q4: What scaffolding systems are these couplers compatible with?

A: They are fully 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 strictly comply with international standards such as BS 1139 and EN 74.

Q6: Can the couplers be reused?

A: Yes, they are highly durable and designed to be reused multiple times across various construction projects.

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