Premium waterproof cable harness and connector vendor
Custom electronic connectors and terminal blocks inventory including PCB wafer connectors, heavy duty pin headers, and terminal blocks for industrial automation.

Industrial Connectors

High-performance board-to-board, wire-to-board, and industrial connectors engineered to ensure reliable signal and power transmission.

Custom wire harness and cable assemblies for industrial control systems, featuring precision crimped terminals, heavy-duty connectors, and protective sleeving.

Custom Wire Harnesses

Tailor-made wire harness assemblies customized for industrial machinery, automotive electronics, and specialized equipment.

Heavy duty waterproof wiring harness assemblies integrated with circular aviation connectors and multi-pin industrial cable connectors.

Custom Industrial Cables

Custom-engineered industrial cables, data cables, and waterproof wiring solutions built for harsh environments.

Our Certifications

Our manufacturing processes and products strictly adhere to global quality and compliance standards.

Our Manufacturing Facilities

Equipped with advanced production lines to deliver high-quality, scalable OEM/ODM manufacturing.

Professional wire harness assembly workshop equipped with automated cutting, wire stripping, and high-precision terminal crimping machines.

Wire Harness Workshop

Equipped with automated cutting, stripping, and high-precision crimping machines to ensure reliable and efficient wire harness assembly.

Cable Production & Overmolding Workshop

Featuring advanced vertical injection molding and extrusion production lines for custom cable manufacturing and durable PVC/PE overmolding.

Advanced cable overmolding workshop featuring vertical injection molding machines for durable custom connector and PVC overmolded cable assemblies.
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Tell us about your wire harness, cable, or connector integration needs. Our engineering team is ready to assist.

Two technicians quality testing and custom manufacturing wire harnesses on an injection molding machine at Longyd facility to ensure RoHS and CE compliance.

Frequently Asked Questions.

Yes, strictly. All custom connectors, wiring harnesses, and materials processed by Longyd adhere strictly to global compliance and quality standards, including RoHS, CE, and FCC. We maintain complete traceability for premium industrial applications.

We provide full OEM and ODM services. Our engineering team can customize the wire length, insulation jacket materials (such as durable PVC/PE/PUR), connector models, pin configurations, and protective sleeving according to your technical drawing or requirements.

Lead times vary depending on the complexity of the cable assembly and material availability. Standard samples typically take 3-5 days, while bulk custom orders range from 2 to 3 weeks. Contact us directly for a specific project timeline.

Yes. We assist our clients from prototype to mass production. If you have a hand sketch or an application requirement but no formal CAD drawings, our experienced technical team can help create blueprints and optimize the wiring design for maximum reliability.

Two technicians quality testing and custom manufacturing wire harnesses on an injection molding machine at Longyd facility to ensure RoHS and CE compliance.

Shenzhen Longyueda Electronic Technology Co., Ltd.

Shenzhen · China
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