Rebar Coupler

Manufactured at the National Cutting Tools works in Ludhiana, Punjab, the Rebar Coupler is optimized for <p>Rebar Couplers by National Cutting Tools are high-strength mechanical splicing sleeves engineered to connect reinforcing steel bars (TMT bars) in reinforced concrete structures. Traditional lap splicing wastes 40 to 60 bar diameters of expensive steel, creates severe rebar congestion that obstructs aggregate flow, and relies entirely on concrete bond strength; our mechanical couplers provide a direct, continuous load transfer path that achieves 100% bar-break tensile capacity conforming to IS 16172, BS 8110, and ACI 318 Type 2 requirements.</p>.

<p>Manufactured from high-grade seamless carbon alloy steel tubing (Grade 45 or 40Cr), our couplers are CNC machined with precision parallel metric internal threads. When threaded onto properly prepared rebar ends, the connection guarantees zero slip, exceptional ductility, and full cyclic tension-compression performance under severe seismic and dynamic bridge loading conditions.</p>

<h3>Key Features</h3>

<ul>

<li><strong>100% Bar-Break Joint Strength:</strong> Tensile test certified to exceed 125% of rebar yield strength, ensuring failure occurs in the parent rebar, never in the coupler.</li>

<li><strong>High-Grade Seamless Alloy Steel:</strong> Precision forged and machined from crack-free seamless mechanical tubing with high impact and fatigue resistance.</li>

<li><strong>Full Size Range (16 mm to 40 mm):</strong> Available in standard sizes for 16, 20, 25, 28, 32, and 40 mm TMT rebars (Fe 500, Fe 550, Fe 600 grades).</li>

<li><strong>Standard, Transition, and Positional Types:</strong> Standard couplers for rotating bars; transition couplers for joining different bar sizes; left/right couplers for non-rotating bars.</li>

<li><strong>Seismic & Cyclic Load Certified:</strong> Meets stringent high-strain cyclic performance criteria for nuclear containment, metro rail viaducts, and earthquake zones.</li>

<li><strong>Protective Thread Caps:</strong> Factory fitted with heavy plastic caps to protect internal threads from dust, moisture, and concrete slurry during site storage.</li>

</ul>

<h3>Applications</h3>

<ul>

<li>Metro rail viaducts, underground station diaphragm walls, and track slabs</li>

<li>Highway flyover piers, precast segmental bridges, and tunnel linings</li>

<li>High-rise residential and commercial tower columns and core walls</li>

<li>Nuclear power plants, hydroelectric dams, and deep marine foundation piles</li>

</ul>

<p>Manufactured under strict ISO 9001:2015 quality control at our facility in Ludhiana, Punjab. Every batch is batch-coded, dimensionally verified, and tensile proof-tested with certified test reports provided for site submission.</p>