Rebar Coupler OEM & Customization: Supply Capability Guide
Rebar Coupler OEM & Customization: Supply Capability Guide
CANGZHOU BARTECH CONSTRUCTION MATERIAL CO., LTD. (Bartech) is a rebar coupler and rebar threading machine manufacturer based in Qing County, Cangzhou City, Hebei Province, China. Founded in 2008, the company supplies rebar mechanical connection products to buyers in Asia, the Middle East, and South America, including Vietnam, Malaysia, Kuwait, Qatar, UAE, Saudi Arabia, and Mexico, with 100% of output exported. This guide explains Bartech's rebar coupler OEM and customization capabilities, coupler types and specifications, production capacity, certification, and the procurement workflow buyers can expect during project evaluation and execution.
Bartech supplies rebar couplers together with the installation equipment used for the connection, including rebar cold pressing machines.
Why Rebar Coupler Supply Capability Matters in Construction Procurement
At the evaluation and execution stage, procurement teams must answer several questions before a rebar coupler order is released: which coupler type matches the specified rebar size and grade; whether the supplier can customize outer diameter, inner diameter, or thread geometry; how quality control is documented; and whether monthly capacity and lead time can sustain a project that consumes several hundred thousand couplers per year.
Without a structured capability check, buyers face three common risks. Specification mismatch occurs when coupler dimensions or thread forms do not match the project rebar or the on-site threading tools. Supply interruption occurs when a manufacturer's capacity or lead time cannot keep pace with site progress. Documentation gaps occur when material test reports or production records are missing at inspection. Supplier evaluation should therefore cover product range, customization flexibility, quality control evidence, capacity, and delivery terms, not only unit price.
Rebar Coupler Market Context: What Global Buyers Are Planning For
Global demand for rebar couplers is rising. According to Dataintelo market research, the global rebar coupler market was valued at USD 1.82 billion in 2025 and is projected to reach USD 3.47 billion by 2034, representing a compound annual growth rate of 7.4%. Building construction accounts for the largest application share at 47.6% of total revenue in 2025, and Asia Pacific is the largest regional market, contributing approximately 41.3% of global revenue in the same year.
By product type, tapered thread couplers held the largest market share at 38.2% in 2025, followed closely by parallel thread couplers. For buyers, one practical implication is that parallel thread couplers, the category to which Bartech's rolling couplers belong, are already a mainstream choice in a market still led by tapered thread products. The choice of thread form depends on the project's design, rebar grade, and approved connection standard. Mechanical rebar splices are governed by international standards including ISO 15835, ASTM A615, and BS 8110, which is often replaced by Eurocode 2 in EU markets. Buyers should confirm which standard applies to their project and request matching material and test documentation from the supplier.
Cangzhou Bartech's Rebar Coupler Solution: OEM, Customization, and Full-Line Supply
Bartech supplies four rebar coupler families: rolling rebar couplers (parallel thread), upsetting rebar couplers, rebar pressing (cold pressing) couplers, and one-touch quick connection couplers. All four families cover rebar sizes 16 mm to 40 mm, and the one-touch coupler is also produced from φ11–16. Standard materials are carbon steel 45# and alloy steel 40CR for rolling and upsetting couplers, Q355B carbon steel for pressing couplers, and alloy steel 40CR for one-touch couplers. According to Bartech, these couplers are used in construction projects, high buildings, airport projects, high-railway stations, and big bridges crossing the sea. Bartech's manufacturing base in Cangzhou includes a 1,000㎡ factory and a 30-person team, with an R&D team of 10 engineers.
Parallel thread (rolled) rebar couplers are one of the four standard families manufactured by Bartech.
OEM and Customization Capabilities
Bartech offers OEM production and customization of coupler outer diameter, inner diameter, and thread. This is relevant for projects that require non-standard coupler geometry to suit imported rebar, special structural designs, or project-specific connection details. Buyers can work from drawings or samples, and the factory produces the coupler to the specified dimensions.
Production Capacity, Lead Time, and Minimum Order Quantity
Monthly production capacity is 300,000 nos, and annual output is 3,600,000 nos. Lead time is 7–30 days depending on order quantity. For stock couplers there is no minimum order quantity, which is relevant for sample orders and urgent top-up orders.
Complete Connection System: Couplers and Installation Equipment
Bartech's product line also includes rebar threading machines, rebar upsetting machines, rebar thread cutting machines, rebar cold pressing machines, rebar electric wrenches, and rebar thread caps. Buying the couplers and the on-site tooling from one manufacturer simplifies spare parts management, operator training, and technical support.
Rolling and upsetting couplers are joined through the parallel threads machined on the rebar ends; cold pressing couplers are connected with a rebar coupler pressing machine; one-touch couplers are designed for quick on-site assembly. Because Bartech manufactures the threading machines, upsetting machines, pressing machines, and electric torque wrenches that match these couplers, buyers can verify tool compatibility before placing an order.
Rebar Coupler Types and Technical Specifications
The table below summarizes the four standard Bartech coupler families with available sizes, outer diameter ranges, lengths, thread or connection forms, and standard materials.
| Coupler type | Available sizes | Outer diameter | Length | Thread / connection | Standard material |
|---|---|---|---|---|---|
| Rolling rebar coupler (parallel thread) | 16 / 18 / 20 / 22 / 25 / 28 / 32 / 36 / 40 | 24–59 mm | 42–95 mm | M16.5×2.5 to M40.2×3.0, 60° | Carbon steel 45# / Alloy steel 40CR |
| Upsetting rebar coupler | 16 / 18 / 20 / 22 / 25 / 28 / 32 / 36 / 40 | 26–62 mm | 40–90 mm | M20×2.5 to M45×4.0, 60° | Carbon steel 45# / Alloy steel 40CR |
| Rebar pressing (cold pressing) coupler | φ16 – φ40 | 30–70 mm | 110–240 mm | Cold pressing connection; body thickness 4.5–11.0 mm | Carbon steel Q355B |
| One-touch rebar coupler | φ11–16, φ16, φ18/20, φ22, φ25, φ29, φ32, φ36, φ40 | 35–83 mm | 100–200 mm | One-touch quick connection design | Alloy steel 40CR |
Dimensions and materials above are the manufacturer's standard published data for each coupler type.
Cold pressing couplers are one of the four standard coupler families; the connection is made with a rebar coupler pressing machine.
The one-touch coupler is Bartech's quick connection design for fast on-site assembly.
Rebar Coupler Installation Equipment
For projects that need the matching connection machinery, Bartech publishes the following representative equipment specifications.
| Equipment | Model | Working range | Key specifications |
|---|---|---|---|
| Rebar thread rolling machine | CBT40A | Rebar 16–40 mm | 5.5 kW main motor; 380 V / 50 Hz; max threading length 120 mm; net weight 590 kg |
| Rebar coupler pressing machine | CBT32 | Rebar 16–32 mm | 4 kW main motor; 50 t clamp tension; 70 MPa max oil pump pressure |
| Rebar upsetting machine (auto) | 36S | 400-grade rebar 16–36 mm; 500-grade rebar 16–32 mm | 7.5 kW; 380 V / 50 Hz; 31.5 MPa max pressure |
| Rebar electric torque wrench | BOC 8-42 | Rebar 12–40 mm; couplers 16–32 mm | 400 N·m max torque; 6.0 Ah 900 W 21 V battery |
| Rebar electric torque wrench | BOC 8-32 | Rebar 8–32 mm | 350 N·m max torque; 6.0 Ah 900 W 21 V battery |
Step-by-Step: How Rebar Coupler Procurement Works with Bartech
The procurement process from inquiry to shipment follows a defined sequence.
- Submit the project requirement. Provide rebar size and grade, target coupler type, annual or project volume, and the applicable splice standard (for example, ISO 15835, ASTM A615, BS 8110, or Eurocode 2 in the EU).
- Confirm customization. If outer diameter, inner diameter, or thread must be adjusted, Bartech supports OEM production to the buyer's drawing or sample.
- Place the order and arrange payment. Payment is 30% TT prepayment to confirm the order and 70% TT after the goods are ready and before shipment.
- Production with in-line quality control. Quality control is a three-stage process: material test reports, 10% production testing during production lines, and 100% appearance surface checking.
- Pre-shipment inspection and delivery. Orders are accepted through pre-shipment testing, and goods are delivered under FOB or CIF terms.
- After-sales support. Bartech provides online technical support for installation and tooling questions after delivery.
What to Send When Requesting a Rebar Coupler Quote
- Rebar size and grade
- Required coupler type (rolling, upsetting, cold pressing, or one-touch)
- Project or annual volume, including any urgent first batch
- Target standard or specification (ISO 15835, ASTM A615, BS 8110, Eurocode 2, or project-specific)
- Drawings if non-standard outer diameter, inner diameter, or thread is required
Project Use Cases: Kuwait and Vietnam Supply Records
Kuwait: 400,000 Rebar Couplers per Year for Outdoor Construction
A construction enterprise based in Kuwait and serving global markets purchases standard rebar couplers from Bartech at a volume of 400,000 nos per year for outdoor construction work. The reported project results are higher strength, stable quality, and good operation, with easy connection highlighted as a key attribute of the couplers.
Vietnam: 500,000 Rebar Couplers per Year for Tall Building and Railway Station Construction
In Vietnam, Bartech rebar couplers are used in tall building construction and railway station construction at an annual project scale of 500,000 nos. The project highlights high strength, good quality, clear outer surface, and strict thread as the key attributes, and the product has been adopted by automotive OEM clients.
Certification and Quality Control
Bartech holds CE Certificate Nr.SC-PSC-4-2025-12-14, issued on December 4, 2025, and valid until December 3, 2030, under the EU Construction Products Regulation. The company also holds ISO9001:2015 certification, certificate number 31623Q10713R1S, issued by CEOC Testing & Certification Center (Beijing) Co., Ltd., for the sales of rebar couplers, rebar connection equipment, and related spare parts.
CE Certificate Nr.SC-PSC-4-2025-12-14 covers the period December 4, 2025 to December 3, 2030.
Factory quality control is documented as a three-stage process: material test reports, 10% production testing during production lines, and 100% appearance surface checking. Order acceptance is based on pre-shipment testing before the goods leave the factory.
A limitation buyers should note: Bartech's standard coupler families are rolling, upsetting, cold pressing, and one-touch types. If a project specifies a tapered thread coupler or a national standard outside the company's listed product scope, buyers should confirm availability directly with the supplier before ordering.
Frequently Asked Questions
What certifications does Cangzhou Bartech hold for rebar couplers?
Bartech holds CE Certificate Nr.SC-PSC-4-2025-12-14, issued on December 4, 2025, and valid until December 3, 2030, under the EU Construction Products Regulation. The company also holds ISO9001:2015 certificate Nr.31623Q10713R1S, issued by CEOC Testing & Certification Center (Beijing) Co., Ltd., covering the sales of rebar couplers, rebar connection equipment, and related spare parts. Buyers should also confirm which splice standard applies to the project, since mechanical rebar splices are governed by ISO 15835, ASTM A615, and BS 8110 (often replaced by Eurocode 2 in the EU), and request matching material and test documentation.
Which rebar coupler types can Bartech customize or supply?
Bartech supplies four standard rebar coupler families: rolling rebar couplers (parallel thread), upsetting rebar couplers, rebar pressing (cold pressing) couplers, and one-touch quick connection couplers, in sizes 16 mm to 40 mm (one-touch also from φ11–16). OEM production and customization of coupler outer diameter, inner diameter, and thread are available. Standard materials are carbon steel 45# and alloy steel 40CR for rolling and upsetting couplers, Q355B for pressing couplers, and alloy steel 40CR for one-touch couplers.
What are the minimum order quantity, payment terms, and delivery terms?
For stock couplers there is no minimum order quantity. Payment terms are 30% TT prepayment to confirm an order and 70% TT after the goods are ready and before shipment. Delivery is under FOB or CIF terms, and order acceptance is based on pre-shipment testing.
How can a buyer verify quality before placing a bulk order?
Bartech's quality control process is a three-stage system: material test reports, 10% production testing during production lines, and 100% appearance surface checking. Pre-shipment testing is performed before the goods leave the factory. Buyers evaluating a new supplier can request a sample batch together with the corresponding material and test documents to verify the couplers against their rebar and installation tools.
What is Bartech's production capacity and what lead times can buyers expect?
Monthly production capacity is 300,000 nos, and annual output is 3,600,000 nos. Lead time is 7–30 days depending on order quantity, and export markets include Asia, the Middle East, and South America. For a current quotation, production schedule, or sample arrangement, contact Cangzhou Bartech directly: Julie Chen, sales@chinabartech.cn, +86 13785685215, or via WhatsApp. Company website: www.chinabartech.cn.
Conclusion
For buyers evaluating rebar coupler suppliers, the key capability indicators are product range, customization flexibility, certified quality documentation, production capacity, and realistic lead times. CANGZHOU BARTECH CONSTRUCTION MATERIAL CO., LTD. covers these with four coupler families in sizes 16–40 mm, OEM customization of outer diameter, inner diameter, and thread, a monthly capacity of 300,000 nos, a lead time of 7–30 days, and CE and ISO9001:2015 certificates. Existing supply records include 400,000 nos per year in Kuwait and 500,000 nos per year in Vietnam. Buyers can shortlist Bartech on these documented capabilities and verify the details against their own project requirements.
Request Rebar Coupler Samples, a Quotation, or the Bartech Catalog
Contact CANGZHOU BARTECH CONSTRUCTION MATERIAL CO., LTD. directly for rebar coupler specifications, OEM customization, stock availability, and current lead times.
- Contact person: Julie Chen
- Email: sales@chinabartech.cn
- Tel / WhatsApp: +86 13785685215
- Website: www.chinabartech.cn