Rebar Roll Tech Coupler
A rebar roll thread (roll-tech) coupler by Mitro Industries is a mechanical device used to connect two TMT (Thermo-Mechanically Treated) bars end-to-end, ensuring continuity of reinforcement bar. View Complete Details...
₹ 21/Pcs
Product Specification
The roll thread (roll-tech) coupler is d on rib peeling and threading technology, where the ends of TMT bars are machined and threaded, then joined using a coupler sleeve similar to tightening a nut and bolt.
• Used to connect two TMT bars of same or different diameters
• Common size range 12 mm to 40 mm
• Material Typically high-strength steel (EN8D grade)
Working Principle (How 2 TMT Bars Are Connected)
• Cutting Bar ends are cut at 90.
• Threading Threads are created on both bar ends using a roll threading machine.
• Coupling Both threaded ends are screwed into the coupler.
This creates a continuous load path, making the joint as strong as or stronger than the parent bar.
Key Features
• High Strength Joint - Meets standards like ACI 318 (up to 1.25 yield strength or more)
• No Lap Splicing Required - Reduces steel consumption
• Quick Installation - Saves time and labor
• Uni Load Transfer - Ensures structural safety
• No Congestion - Ideal for dense reinforcement areas
• Quality Control Friendly - Easy inspection
Types of Roll Thread Couplers
Mitro offers variations depending on application
• Standard (Right-hand thread)
• Positional (Left Right thread) for fixed bars
• Reducer coupler connects different bar diameters
Applications
• Columns and beams
• High-rise buildings
• Bridges and highways
• Foundations and retaining walls
• Precast and infrastructure projects
These couplers are widely used because they replace traditional lap joints, which are longer, weaker, and consume more steel.
Advantages for Connecting 2 TMT Bars
• Eliminates overlapping length (lap) saves steel
• Provides direct load transfer between bars
• Reduces site congestion
• Ensures consistent strength and alignment
• Suitable for high-load and seismic structures
The Mitro roll-tech (roll thread) coupler is one of the most efficient and widely used systems for joining two TMT bars. It offers strong, reliable, and cost-effective connections, making it a superior alternative to traditional lap splicingespecially in modern high-rise and infrastructure construction.
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