High-performance Mechanical Bolted Type Couplers for reliable reinforcement bar joining in RCC construction, bridges, metro rail, tunnels, and infrastructure applications — no threading or welding required.
Request Bulk Quote →
An MBT Coupler (Mechanical Bolted Type Coupler) is a mechanical reinforcement bar joining system used to connect two reinforcement steel bars (rebars) using high-strength locking bolts.
Unlike threaded couplers, MBT Couplers do not require threading, welding, or bar rotation during installation. The reinforcement bars are inserted into the coupler sleeve, and bolts are tightened using controlled torque to create a secure mechanical connection capable of transferring tensile loads effectively.
MBT Couplers are also commonly known as:
These couplers are widely used in:
MBT Couplers are widely used to create strong and reliable reinforcement bar connections without affecting the structural integrity of reinforcement steel.
| Parameter | Specification |
|---|---|
| Product Name | MBT Coupler |
| Material | High-Strength Alloy Steel |
| Rebar Diameter Range | 12mm to 40mm |
| Connection Type | Mechanical Bolted Connection |
| Surface Finish | Zinc Coated / Anti-Corrosion Coating |
| Bolt Type | High Tensile Steel Bolts |
| Tensile Strength | Equal or Greater Than Parent Rebar |
| Installation Method | Torque Tightening |
| Usage | Reinforcement Bar Joining |
| Application | RCC & Infrastructure Construction |
MBT Couplers are available in multiple configurations to suit different rebar sizes, structural requirements, and application conditions.
Applications
Applications
Applications
Applications
MBT Couplers are widely used across multiple construction and infrastructure industries.
| Industry Sector | Application |
|---|---|
| RCC Construction | Reinforcement bar joining |
| Bridges & Flyovers | Seismic reinforcement connections |
| Metro Rail Projects | Tunnel reinforcement systems |
| Industrial Structures | Heavy RCC applications |
| Dams & Marine Structures | Corrosion-resistant reinforcement |
| High-Rise Buildings | Column reinforcement continuity |
| Infrastructure Projects | Structural reinforcement systems |
Proper installation is important for achieving reliable reinforcement performance and structural safety.
MBT Couplers undergo mechanical and structural testing to ensure safety, dimensional accuracy, tensile strength, and long-term durability in RCC and infrastructure projects.
| Test Type | Objective | Standard Reference |
|---|---|---|
| Tensile Strength Test | Verifies ultimate tensile load performance | ASTM A1034 / IS 16172 |
| Slip Test | Measures slip resistance under load | ISO 15835 |
| Cyclic Tensile Test | Evaluates seismic load behavior | ACI 318 |
| Torque Test | Checks bolt tightening performance | Internal QC Standard |
| Go/No-Go Gauge Test | Verifies dimensional accuracy and fitment | Precision Inspection Standard |
| Dimensional Accuracy Test | Checks manufacturing tolerances | Internal QA Process |
| Corrosion Resistance Test | Evaluates coating durability | Internal Testing Procedure |
The Go/No-Go Gauge Test is performed to verify dimensional accuracy and fitment precision of MBT Couplers according to specified engineering tolerances.
During the inspection process:
This testing helps ensure:
Go/No-Go Gauge Testing is important for maintaining quality control in RCC, bridge, metro rail, industrial, and infrastructure construction projects where precise reinforcement connections are critical.
Surya Engineering is a trusted manufacturer and supplier of reinforcement accessories, industrial construction products, and engineering solutions in India. We specialize in high-performance RCC construction products designed for infrastructure, industrial, and heavy engineering applications.
Surya Engineering supplies MBT Couplers across major industrial and infrastructure regions of India. Our logistics and distribution network ensures fast delivery and reliable support for industrial and infrastructure projects across India.
12mm–40mm Rebar Diameter · High-Strength Alloy Steel · No Threading Required · IS 16172:2023 Compliant · PAN India Supply
Request a Quote →