WEIPU Waterproof Circular Connectors — Trusted Industrial Connectivity

WL52J19TADⅡ Male-contact plug for M40 ×1.5 plastic hose adapter IP67 2

WEIPU Waterproof Circular Connectors — Reliable Industrial Connectivity

Why WEIPU for Waterproof Circular Connectors?

Founded in 1996, WEIPU is a global leader in waterproof circular connectors with nearly 30 years of specialized expertise. As a principal drafter of the GB/T 11918-2014 national standard, WEIPU combines deep industry knowledge with independent R&D and a vertically integrated production system. Our portfolio covers over 70,000 specifications—circular, heavy-duty, and CEE—serving 30,000+ customers across 130 countries.

Robust Performance & Compliance

WEIPU waterproof circular connectors are engineered for mission-critical environments, offering IP69K protection, 800A high-current options, and medical-grade connectors that withstand 134°C autoclaving. Our manufacturing meets IRIS (Rail Transit) and IATF 16949 (Automotive) standards, ensuring reliability, traceability, and compliance with the most stringent global safety requirements.

Applications Across Industries

Designed for harsh and demanding applications, WEIPU waterproof circular connectors power renewable energy systems, industrial automation, rail transit, medical equipment, and smart factories. Their rugged sealing, vibration resistance, and high-temperature tolerance make them ideal for outdoor, marine, and sterilized medical environments.

Customization, Rapid Prototyping & One-Stop Solutions

WEIPU supports OEM/ODM and offers one-stop solutions to accelerate Industry 4.0 projects. Our 80,000 m² facility and 2025 expansion support an annual capacity of 55 million units. We provide rapid prototypes in 7–15 days, 24-hour technical response, and scalable production to meet urgent delivery timelines.

Global Support & Contact

Trusted worldwide for durability and performance, WEIPU combines product excellence with local support. Visit https://www.weipu-group.com/ or contact our sales team at salse01@weipu-group.com | +86-020-80501102 to discuss waterproof circular connectors tailored to your application.

waterproof circular connectors Display

WL52J19TADⅡ Male-contact plug for M40 ×1.5 plastic hose adapter IP67 1

WL52J19TADⅡ Male-contact plug for M40 ×1.5 plastic hose adapter IP67 3

FAQ:

Are there hidden fees in the quotation?

No, our quotation includes product cost, customization fee, packaging fee, and basic logistics cost. Additional fees (e.g., customs duties, remote area surcharges) are clearly listed separately.

What is the difference between the tin-plated and gold-plated contacts of the SY series? How to choose?

Tin-plated contacts have good conductivity and cost-effectiveness, suitable for general industrial environments; gold-plated contacts have better corrosion resistance and lower contact resistance, suitable for harsh environments with high humidity, salt spray or frequent mating. It is recommended to choose according to the actual working conditions and budget.

Do you accept returns for customized products?

Due to the uniqueness of customized products, returns are not accepted, but we will rework or replace products that fail to meet the agreed standards.

Are the SP Series compatible with other brands' industrial connectors?

The SP Series follows standard industrial interface specifications; please provide the specific model of the mating connector for compatibility verification.