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Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd.

JUNW JB Aluminum Groove Clamp for ACSR Splicing

JUNW JB Shaped Aluminum and Groove Clamp
1. Versatile Conductor Splicing Solution
JUNW JB series clamps are high-performance mechanical connectors purpose-built for parallel splicing of aluminum stranded wires and ACSR (aluminum conductor steel reinforced) in overhead power distribution lines. Covering models JB-0 to JB-6, they adapt to conductor cross-sections from 16mm² to 630mm², with bolt counts ranging from 2 to 4 (depending on model) to deliver tailored clamping force for diverse wire sizes.
2. Low-Resistance, High-Conductivity Design
Crafted from premium aluminum alloy, these clamps offer exceptional electrical conductivity and minimal contact resistance, reducing power loss at connection points. The precision-machined dual-groove structure ensures uniform pressure distribution across conductors, eliminating localized stress and preventing strand damage while maintaining stable electrical performance under fluctuating loads.
3. Secure, Vibration-Resistant Installation
Featuring galvanized steel bolts with torque-controlled fastening, the JB clamps form a rigid, anti-loosening connection that withstands overhead line vibration, thermal cycling, and wind-induced stress. The bolted design enables straightforward, tool-assisted installation without specialized equipment, streamlining on-site splicing and repair work.
4. Durable, Corrosion-Resistant Performance
Built to withstand harsh outdoor environments, the clamps’ aluminum construction resists electrochemical corrosion, while galvanized hardware prevents rust and degradation. They are widely used in overhead line splicing, branch connections, and emergency repairs for low-to-medium voltage distribution networks, offering reliable, long-lasting performance with minimal maintenance requirements.

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Zhejiang Junwei Electric Co., Ltd.
Zhejiang Junwei Electric Co., Ltd.

Zhejiang Junwei Electric Co., Ltd. is built on the core values of quality, innovation, and integrity. Over the past 19 years, these principles have guided our growth into a manufacturing and trading enterprise committed to delivering dependable products.

If people and businesses in French-speaking African countries have their lights on, they are going to need what we offer. We will be here to provide the products and services they need, new or old", said Shuping Zhang, the founder of Junwei Electric. It is our mission and passion to provide customers with a quality product from a staff with the expertise to back it up.

Zhejiang Junwei Electric Co., Ltd specializes in solutions. Since 2007, Junwei Electric has made a commitment to our customers that is simple: reliable products, reliable people and reliable services with high value and suitable prices. With ample inventory and a strong supplier network, Junwei is dedicated to delivering a smooth experience. All products are safety-certified and ready for use.

We specialize in the R&D and manufacturing of high- and low-voltage electrical products, including circuit breakers, meter boxes, and fuses. Our products are exported to Cameroon, Côte d'Ivoire, Morocco, Burkina Faso, and other African countries. We have also built long-term, stable partnerships with power authorities in Senegal, Gabon, Benin, and Guinea, serving as a key supplier of JB Aluminum Groove Clamp for ACSR Splicing products in China for these markets.

We have a dedicated R&D team and laboratory focused on product innovation and technical improvement. We believe that progress comes from real-world needs, curiosity, and a commitment to continuous refinement. All finished products pass multiple rounds of inspection to ensure consistent performance and reliability.

We are not just a aluminum alloy tension clamp factory , but a partner in reliable electrical solutions. Supported by a comprehensive after-sales service system and efficient supply chain management, we have earned the long-term trust of our overseas customers. Our commitment is simple: provide safe, durable and cost-effective electrical solutions, bolstered by our expertise and care.

Our reputation has been earned through a steady focus on quality. Innovation drives us forward; reliability is what we stand by. All of our production and quality management systems meet or exceed CE and ISO standards. The products you receive are certified, safe, and ready for installation.

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