Rebar Couplers

Bolted Rebar Coupler

The Bolted Rebar Coupler System is a mechanical rebar splicing solution designed to replace traditional methods like welding or lap splicing. Its core function is to create a seamless, end-to-end connection between two reinforcing bars using a high-strength steel sleeve with internal threads and locking bolts. The primary value it offers is significant time

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Product details

Product Description

Structure & Working Principle

The system’s effectiveness lies in its simple yet robust design, which consists of three key components: the High-Strength Steel Sleeve, Internal Threads, and Radial Locking Bolts.

The connection process is a simple three-step operation:

Step 1: Screw the coupler onto the pre-threaded end of one rebar.

Step 2: Insert the second rebar into the other end of the coupler.

Step 3: Tighten the external locking bolts with a standard wrench to complete the connection.

This dual-mechanism of threaded engagement and bolt locking ensures a connection strength that meets or exceeds the actual tensile strength of the rebar itself.

Key Advantages & Performance

◆Maximum Efficiency:

• Installation is up to 70% faster than welding.

• Eliminates the need for electricity, open flames, or special equipment, making it largely unaffected by weather conditions.

• Reduces dependency on highly skilled labor, simplifying on-site management.

◆Proven Performance:

• Achieves a connection strength of 125% of the rebar’s specified tensile strength.

• Provides excellent fatigue and seismic performance, making it ideal for high-rise buildings and seismic zones.

• As a fully mechanical connection, it guarantees consistent quality, eliminating common risks associated with welding like cold welds or slag inclusions.

◆Economic Practicality:

• While the unit price may be higher, it leads to lower total project costs by saving on labor, time, and equipment.

• Versatile for various rebar diameters and perfect for congested reinforcement areas.

Typical Applications (Use Cases)

• High-Rise Buildings: Vertical rebar splicing in columns and shear walls.

• Infrastructure Projects: Rebar connections in bridges, tunnels, and utility tunnels.

• Industrial Construction: Foundations and equipment anchorage in power plants and chemical facilities.

• Emergency Repair & Prefabricated Elements: Ideal for rapid structural repair and connecting precast concrete elements.

Services from Tenjan (Our Services)

• Customized Solutions: We provide non-standard sizes and special materials (e.g., corrosion-resistant).

• Professional Technical Support: We offer end-to-end support, from design and selection to on-site installation guidance.

• Quality Assurance: All products come with complete Material Test Certificates (MTCs) and test reports.

• Global Supply: As a source factory, we support worldwide shipping with competitive pricing and flexible delivery schedules.

Technical data

Product Specifications

Parameter	Key Features
Product Name	Rolling Straight Thread Rebar Coupler，Upsetting Parallel Thread Rebar Coupler，Cold Extrusion Press Rebar Coupler，Taper Thread Rebar Coupler，Customized Special Shape Rebar Coupler，Bolted Rebar Coupler
Material	Carbon Steel ASTM 1045 (45#) / Alloy Steel ASTM 5140 (40Cr)
Standard	Comply with Chinese standard JG/T 163-2013 Couplers for Rebar Mechanical Splicing, Amercian standard ACI318 ACI349, British standards BS8110, French standard NF35-20-1, German standard DIN1045, ISO 15835 and other relevant standards.
Used for rebar Grade	BS 4449, B500, JG/T 163-2013, HRB 400, HRB 500, HRB600, ASTM A615 Grade 60/Grade 75
Size	Suitable for rebar size from 16mm to 32mm
Thread	60⁰/ 75⁰
Packing	Wooden Case + Carbon Box
Customization	Customizing based on required major diameter, pitch of thread, minimum tensile strength and rebar strength

Size of Bolted Rebar Coupler

specification	OD（mm）	ID（mm）	L（mm）	W T(mm)	Weight (kg)	Average Torque All Bolts(N-m)	Number of Bolts（pcs）
10(#3)	33	15	127	9	0.74	205	6
12	33	15	127	9	0.8	205	6
14(#4)	37	19	159	9		205	6
16(#5)	37	19	159	9	1.07	205	6
18	44	24	191	10	1.67	205	8
20(#6)	44	24	191	10	1.67	205	8
22(#7)	48	28	273	10	2.8	340	10
25(#8)	54	30	311	12	4.04	475	10
28	60	34	311	13	5.39	475	10
30(#9)	60	34	311	13	5.39	475	10
32(#10)	65	38	396	13.5	7.42	680	10
34	72	43	396	14.5	9.77	750	10
36(#11)	72	43	430	14.5	10.61	750	12
38	80	47	430	16.5	13.33	790	12
40	80	47	430	16.5	13.33	790	12