heavy-duty rebar coupler for 40mm Reinforcement Bars
The Surya Engineering 40mm Rebar Coupler is a premium mechanical splicing solution designed for large-diameter reinforcing bars. It eliminates traditional lap lengths, drastically reduces steel congestion, and ensures maximum structural integrity in heavy civil engineering and infrastructure projects.
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The 40mm Rebar Coupler is a mechanical reinforcement connection used to join 40mm diameter reinforcement bars in reinforced concrete construction. It provides a practical alternative to conventional lap splicing, particularly where reinforcement congestion, limited space or high reinforcement density makes overlapping bars difficult.
Designed for demanding construction applications, the 40mm rebar coupler provides a controlled mechanical connection between reinforcement bars when installed according to the applicable product specifications and installation procedure.
Conventional lap splicing requires reinforcement bars to overlap over a specified length, which can increase steel consumption and create congestion within structural members. A mechanical rebar coupler provides an alternative connection method that can help optimize reinforcement placement and improve available working space.
For 40mm reinforcement bars, mechanical couplers are particularly useful in structural sections where large-diameter reinforcement and high reinforcement density make conventional lapping difficult.
| Parameter | Specification |
|---|---|
| Product | 40mm Rebar Coupler |
| Compatible Rebar Diameter | 40mm |
| Connection | Mechanical Reinforcement Connection |
| Application | RCC & Reinforced Concrete Construction |
| Rebar Type | Deformed Reinforcement Bar |
| Installation | According to applicable installation procedure |
| Material | Steel, as per applicable product specification |
| Usage | Columns, beams, foundations, walls, bridges & infrastructure |
For structural applications, 40mm rebar couplers should be manufactured and tested according to the applicable project requirements and relevant standards. Depending on the specified connection system and project requirements, quality checks may include dimensional inspection, thread inspection, tensile testing, slip testing and other applicable tests.
Surya Engineering can provide product-related technical and testing documentation according to applicable project requirements.
Extreme Load Transfer: Designed to exceed the yield strength of 40mm rebar, ensuring structural stability in the most demanding environments.
Eliminates Lap Splicing: Saves tons of steel on large-scale projects by eliminating the need for overlapping bars.
Space Optimization: Crucial for heavily congested concrete elements like large bridge piers, dam foundations, and heavy industrial bases.
Accelerated Construction: Quick and easy installation significantly speeds up formwork and concrete pouring schedules.
Durable & Reliable: Manufactured from high-grade carbon steel for maximum performance in critical infrastructure.
| Specification | 12 mm | 16 mm | 20 mm | 25 mm | 32 mm | 40 mm |
|---|---|---|---|---|---|---|
| Bar Diameter (mm) | 12 | 16 | 20 | 25 | 32 | 40 |
| External Diameter (mm) | 20 | 25 | 32 | 40 | 50 | 62 |
| Coupler Length (mm) | 32 | 40 | 50 | 60 | 80 | 90 |
| Thread Size (ID) | 10.5 | 14.5 | 18.5 | 23.5 | 30.5 | 38.5 |
| Thread Pitch (mm) | 2.0 | 2.5 | 2.5 | 3.0 | 3.0 | 3.5 |
| Weight (kg) | 0.05 | 0.09 | 0.18 | 0.32 | 0.75 | 1.20 |
Material Grade: EN8D High Tensile Steel
Size: 40mm Rebar Coupler for 40mm TMT Bar
Type: Parallel Threaded, Cold Forged
OD (Outer Diameter): 62mm
Length: 90mm
Weight: 1.2kg Approx
Tensile Strength: >600 MPa, Bar Break Guaranteed
Surya Engineering offers a comprehensive range of mechanical rebar couplers to suit various structural requirements. Our standard sizes typically range from 12mm to 40mm, including popular sizes like 16mm, 20mm, 25mm, 32mm, and the heavy-duty 40mm rebar coupler. We also manufacture custom sizes and specialized couplers to meet specific project specifications and international standards.
The theoretical weight of a 40mm rebar is approximately 9.87 kg per meter. This is calculated using the standard formula for steel round bars: D/162 (where D is the diameter in millimeters). For accurate project estimations and load calculations, always consult the specific mill certificate or standard (such as IS 1786 or ASTM A615) provided by your supplier.
A rebar coupler is a mechanical splicing device used to join two lengths of reinforcing bars (rebar) end-to-end. It eliminates the need for traditional lap splicing (overlapping bars), which saves steel, reduces congestion in concrete forms, and ensures a continuous and secure transfer of structural loads. It is a critical component in modern reinforced concrete construction.
"Grade 40" refers to the yield strength of the rebar, not its physical diameter. It indicates that the steel has a minimum yield strength of 40,000 psi (or approximately 280 MPa). This is different from a "40mm" rebar, which refers to the physical diameter of the bar. When selecting a 40mm rebar coupler, ensure it is compatible with the specific grade of rebar (e.g., Grade 40, Grade 60, or Grade 75) specified in your structural drawings.
Technical Details
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