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Manufacturing Of Rebar Coupler

Manufacturing Of Rebar Coupler Specification

Feature
Threaded coupler

Height
12 Millimeter (mm)

Weight
560 Kilograms (kg)

Material
Alloy Steel

Application
Rebar connection in construction

Usage
Steel bar splicing

Operating System
threading

Surface Treatment
Black Oxide

Diameter
16mm rebar, 32mm OD Millimeter (mm)

Color
Black

Length
60mm Millimeter (mm)

Load Capacity
220 Kilograms (kg)

Power
Manual assembly Microampere (A)

Weldable
No

Shape
Cylindrical

Installation
Quick fit

Finish
Black oxide

Threads
Metric right-hand

Thread Pitch
2.5mm

Coupler Type
Threaded

Corrosion Resistance
Yes

Mechanical Strength
High

Manufacturing Of Rebar Coupler Trade Information

Minimum Order Quantity
1000 Pieces

Supply Ability
10000 Pieces Per Month

Delivery Time
24 Hours

About Manufacturing Of Rebar Coupler

What is a Rebar Coupler?

A Rebar Coupler (also known as a mechanical splice) is a high-strength steel sleeve used to join two reinforcing bars end-to-end. Unlike lapping, which relies on the concrete bond to transfer load, a coupler creates a direct steel-to-steel connection.

Why Use Rebar Couplers?

Construction engineers prefer couplers for several critical reasons:

Direct Load Transfer: The force is transferred directly from one bar to the next, independent of the concrete's strength.
Reduced Congestion: Lap splicing requires overlapping bars, which creates a "bottleneck" of steel. This makes it difficult for concrete to flow and compact properly. Couplers eliminate this, ensuring better concrete density.
Seismic Resistance: In earthquake zones, concrete may crack and fall away. A mechanical coupler ensures the rebar remains continuous and load-bearing even if the surrounding concrete is compromised.
Material Savings: Lapping requires extra "development length" (5070 times the bar diameter). Couplers save significant amounts of steel, especially in large-diameter bars (20mm and above).

Classification of Rebar Couplers

Rebar couplers are generally classified based on how they connect the bars:

Type	Mechanism	Best For
Standard Coupler	Joins two bars of the same diameter where one bar can be rotated.	General columns and beams.
Position Coupler	Joins two bars where neither bar can be rotated (uses a lock nut).	Precast segments and repair work.
Reducer Coupler	Joins two bars of different diameters.	Transitioning column sizes.
Weldable Coupler	One end is threaded, the other is designed to be welded to a steel plate or beam.	Connecting rebar to structural steel.

Installation Process

Proper installation is vital for the safety of the structure. Follow these standard steps:

1.Bar End Preparation:Precision Cutting.

Cut the end of the TMT bar perfectly square using a bar cutting machine. A jagged edge will prevent a proper fit.

2.Cold Forging:Increasing Surface Area.

Use a rebar cold forging machine to enlarge the end of the bar. This ensures that the threaded section is stronger than the original bar.

3.Threading:Precision Threading.

Cut threads on the forged end using a high-quality threading machine. The thread must be deep and clean to match the coupler's internal threads.

4.Coupler Fixing:Torque Check.

Screw the coupler onto the threaded bar. Use a torque wrench to tighten the connection to the manufacturer's specified torque to prevent slippage.

IS Testing Standards: IS 16172:2023

In India, the Bureau of Indian Standards (BIS) mandates IS 16172:2023 for mechanical splices. For a coupler to be considered safe, it must pass these tests:

Static Tensile Test: The coupler must be able to withstand 125% of the specified yield strength of the rebar. The bar should break before the coupler fails.
Slip Test: Under a load of 60% of the yield strength, the permanent slip (movement) between the bar and the coupler must not exceed 0.1 mm.
Fatigue Test: Essential for bridges and high-rises. The splice must withstand cyclic loading without failure.

Why Choose Surya Engineering?

Located in Mumbai (Vasai), Surya Engineering is a premier manufacturer and supplier of rebar couplers and construction machinery. We don't just sell products; we provide complete engineering solutions.

Pan-India Supply: We serve major infrastructure projects across India, from metro rails to high-rise townships.
Quality Assurance: All our couplers are manufactured using high-grade steel and tested in NABL-accredited labs to meet IS 16172 standards.
In-house Manufacturing: From cold forging machines to threading chasers, we manufacture the equipment that creates the perfect joint.
Customization: We offer customized solutions for unique project requirements, including heavy-duty weldable and reducer couplers.

FAQ's of Manufacturing Of Rebar Coupler:

Q: How do I install the threaded rebar coupler for steel bar splicing?

A: Installation is quick and requires only manual assembly. Simply align the metric right-hand threads of the coupler with the rebar and turn to fit securely, ensuring strong mechanical connection without the need for welding.

Q: What advantages does the black oxide finish provide for the coupler?

A: The black oxide finish imparts excellent corrosion resistance, extends the lifespan of the coupler, and offers a sleek, professional appearance suitable for demanding construction environments.

Q: Where can this rebar coupler be used in construction?

A: This coupler is designed for use in steel bar splicing, making it essential in concrete structures, bridges, tunnels, and any project that requires reinforced rebar connections.

Q: What is the process for obtaining a sample?

A: To obtain a sample, a nominal charge applies prior to handover. Contact our sales team to arrange for a sample and benefit from our express shipping service for prompt delivery.

Q: What are the key benefits of choosing this rebar coupler for my project?

A: You will experience secure connections, high mechanical strength, speedy installation, and robust corrosion resistance-ensuring both efficiency and durability for your construction requirements.