Scaffolding Putlog Coupler – Heavy Duty Single Side Clip On Coupler
Engineered for single-pole scaffolding systems, this robust Putlog Coupler connects transoms to ledgers to create a solid platform base. Its high-strength forged steel construction and single-clamp design ensure a secure and long-lasting connection. You can trust its compliance with key safety standards, including BS1139 and EN74.
Scaffolding Putlog Coupler
1. BS1139/EN74 Standard
| Commodity | Type | Specification mm | Normal Weight g | Customized | Raw Material | Surface treatment |
| Putlog coupler | Pressed | 48.3mm | 580g | yes | Q235/Q355 | Electro-Galvanized/ hot dip Galvanized |
| Putlog coupler | Forged | 48.3 | 610g | yes | Q235/Q355 | electro-Galv./Hot dip Galv. |
Testing Report
Other Types Couplers
2. BS1139/EN74 Standard Drop Forged scaffolding Couplers and Fittings
| Commodity | Specification mm | Normal Weight g | Customized | Raw Material | Surface treatment |
| Double/Fixed coupler | 48.3x48.3mm | 980g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Double/Fixed coupler | 48.3x60.5mm | 1260g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Swivel coupler | 48.3x48.3mm | 1130g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Swivel coupler | 48.3x60.5mm | 1380g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Putlog coupler | 48.3mm | 630g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Board retaining coupler | 48.3mm | 620g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Sleeve coupler | 48.3x48.3mm | 1000g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Inner Joint Pin Coupler | 48.3x48.3 | 1050g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Beam/Girder Fixed Coupler | 48.3mm | 1500g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Beam/Girder Swivel Coupler | 48.3mm | 1350g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
3. American Type Standard Drop Forged scaffolding Couplers and Fittings
| Commodity | Specification mm | Normal Weight g | Customized | Raw Material | Surface treatment |
| Double coupler | 48.3x48.3mm | 1500g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
| Swivel coupler | 48.3x48.3mm | 1710g | yes | Q235/Q355 | eletro Galvanized/ hot dip Galvanized |
Advantages
1. Superior Strength and Durability
Advantage: Manufactured from high-strength drop forged steel (Q235).
Benefit: This ensures exceptional load-bearing capacity and resistance to deformation, providing a secure and long-lasting connection that withstands the rigors of a construction site.
2. Efficient and Secure Connection
Advantage: Unique single-sided design with a fixed end and a clamping jaw.
Benefit: Enables quick and easy installation to connect transoms to ledgers, creating a stable platform for scaffold boards. This design streamlines assembly while guaranteeing a rigid, non-slip connection.
3. Specialized for Single-Pole Scaffolding
Advantage: Purpose-built for use in single-pole (putlog) scaffolding systems.
Benefit: Provides the ideal solution for projects where scaffolding must be tied directly into the building structure, offering versatility and space efficiency without compromising on stability.
4. Guaranteed Safety and Compliance
Advantage: Fully complies with BS 1139 and EN 74 standards.
Benefit: This independent certification guarantees that the coupler meets rigorous safety and performance requirements. You can build with absolute confidence, ensuring a safe working platform that adheres to industry best practices.
5. Optimized Material Use
Advantage: Combines a forged steel cap for maximum strength with a pressed steel body for optimal performance.
Benefit: This strategic use of materials delivers the perfect balance of superior clamping force and overall durability, ensuring reliable performance project after project.
FAQS
1. What is the primary function of a Putlog Coupler?
Its primary function is to securely connect a transom (a horizontal tube running perpendicular to the building) to a ledger (a horizontal tube parallel to the building). This creates a support point for scaffold boards, forming the working platform.
2. What standards does this Putlog Coupler comply with?
This coupler is manufactured to comply with both the British BS1139 and the European EN74 standards. This ensures it meets rigorous safety, quality, and performance requirements for scaffolding components.
3. What materials are used in its construction?
The coupler is made from high-strength materials for durability. The coupler cap is constructed from drop-forged steel (Q235), while the body is made from pressed steel (Q235), providing an excellent balance of strength and reliability.
4. In which scaffolding system is a Putlog Coupler typically used?
It is specifically designed for use in single-pole (or putlog) scaffolding systems. In this system, one end of the transom is fixed directly to the structure's wall, reducing the number of standards needed.
5. How does the single jaw design work?
The coupler features a single, adjustable jaw that clamps onto the ledger tube. The opposite end is a fixed point that attaches to the vertical standard (upright pipe). This design allows for quick and secure connection and disassembly.





