Metal Circular Connectors are the backbone of reliable and safe electrical systems used across aviation, industrial automation, telecommunications, and defense applications. Their superior conductivity, rugged design, and environmental resistance make them indispensable components for ensuring stable power and data transmission. In this article, we will explore what makes Metal Circular Connectors essential, why they are preferred in demanding environments, and how Zhejiang Gaoshiwei Aviation Plugin Co., Ltd. has become a trusted leader in the field with a commitment to precision, performance, and innovation.
What Are Metal Circular Connectors and How Do They Work?
Why Choose Metal Circular Connectors for Your Industrial and Aviation Systems?
About Zhejiang Gaoshiwei Aviation Plugin Co., Ltd.
FAQs About Metal Circular Connectors
Conclusion and Contact Us
Metal Circular Connectors are cylindrical, multi-pin connectors designed to transmit electrical signals or power between different components. Their circular structure provides excellent durability and ease of connection, allowing them to withstand vibration, temperature fluctuations, and harsh working environments.
These connectors are typically made from high-grade aluminum or stainless steel with a protective nickel or zinc plating, which enhances corrosion resistance. Inside, precision-engineered contacts ensure low-resistance conductivity, while the outer shell provides mechanical protection and EMI shielding.
Metal Circular Connectors can be classified by size, pin count, locking mechanism, and environmental sealing performance. They are widely used in aerospace systems, medical equipment, industrial machinery, and military electronics, where reliability is paramount.
Key Features of Metal Circular ConnectorsHigh Strength and Durability: Built with metal shells for mechanical resilience.
Reliable Electrical Performance: Gold-plated contacts for superior conductivity.
Waterproof and Dustproof: IP67/IP68 sealing for outdoor and industrial use.
Wide Temperature Range: Operates effectively from -55°C to +125°C.
Multiple Locking Options: Threaded, bayonet, or push-pull coupling for secure mating.
Versatile Applications: Suitable for aviation, transportation, automation, and power control.
| Parameter | Description |
|---|---|
| Material | Aluminum Alloy / Stainless Steel |
| Plating | Nickel / Zinc / Black Oxide |
| Contact Material | Copper Alloy with Gold Plating |
| Current Rating | 5A – 50A (depending on pin size) |
| Voltage Rating | Up to 1000V |
| Temperature Range | -55°C to +125°C |
| IP Rating | IP67 / IP68 |
| Pin Configuration | 2–37 Pins |
| Coupling Mechanism | Threaded / Bayonet / Push-Pull |
| Cable Diameter | 3mm – 20mm |
The value of a Metal Circular Connector lies in its ability to maintain performance in extreme environments. Unlike plastic or composite connectors, metal variants offer superior mechanical stability, vibration resistance, and electromagnetic shielding. These features make them particularly suitable for aviation and defense systems where signal interference or mechanical failure can lead to critical consequences.
In industrial automation, these connectors simplify installation, reduce downtime, and ensure consistent connectivity between control systems, sensors, and actuators. Their modular design also allows for customization — a key factor in modern manufacturing and IoT integration.
Another reason for their popularity is maintenance efficiency. Metal Circular Connectors are designed for easy disconnection and reconnection, allowing technicians to perform inspections, replacements, or upgrades without rewiring entire systems.
Advantages of Metal Circular Connectors Compared to Other Types| Feature | Metal Circular Connectors | Plastic Connectors | Rectangular Connectors |
|---|---|---|---|
| Durability | Excellent | Moderate | Good |
| EMI Shielding | High | Low | Medium |
| Temperature Resistance | -55°C to +125°C | -20°C to +70°C | -40°C to +100°C |
| Waterproof Protection | IP67/IP68 | IP44 | IP65 |
| Mechanical Strength | Very High | Low | High |
| Vibration Resistance | Excellent | Poor | Moderate |
| Service Life | >5000 mating cycles | <1000 | ~2000 |
| Ideal Applications | Aviation, Industry, Defense | Consumer Electronics | Control Panels |
Zhejiang Gaoshiwei Aviation Plugin Co., Ltd. is a professional manufacturer dedicated to producing high-quality Metal Circular Connectors for global clients. With over a decade of expertise in connector technology, the company combines advanced production facilities, rigorous testing systems, and a strong R&D team to deliver reliable products for aviation, communication, and industrial applications.
The company's manufacturing process adheres strictly to international standards such as MIL-DTL-38999, CE, and RoHS, ensuring safety and compatibility across systems. Each connector undergoes comprehensive inspection — including contact resistance, insulation testing, salt spray, and vibration endurance — to guarantee long-term performance.
Zhejiang Gaoshiwei continues to innovate in connector design, introducing lightweight materials, enhanced waterproof sealing, and quick-locking mechanisms that meet modern industry demands. Its products are exported to Europe, North America, and Southeast Asia, widely recognized for quality, reliability, and cost efficiency.
Q1: What are Metal Circular Connectors used for?
A1: They are used for transmitting electrical power or signals in industrial, aviation, and communication systems requiring durability and high reliability.
Q2: Why should I choose Metal Circular Connectors over plastic ones?
A2: Metal connectors provide better mechanical strength, temperature resistance, and EMI shielding compared to plastic alternatives.
Q3: Are Metal Circular Connectors waterproof?
A3: Yes, most models offer IP67 or IP68 protection, making them suitable for outdoor and harsh environments.
Q4: Can Metal Circular Connectors handle high currents?
A4: Depending on the design, they can support up to 50A current and 1000V voltage ratings.
Q5: How do I choose the right connector size?
A5: The correct size depends on cable diameter, pin count, and current capacity requirements of your application.
Q6: What maintenance do these connectors require?
A6: Periodic inspection of pins, seals, and threads ensures consistent performance and longevity.
Q7: Are customized designs available?
A7: Yes, Zhejiang Gaoshiwei Aviation Plugin Co., Ltd. offers OEM and customized solutions based on client specifications.
Q8: Can these connectors be used in military-grade equipment?
A8: Absolutely. Many of our connectors comply with MIL-DTL-38999 standards for defense and aerospace applications.
Q9: Do Metal Circular Connectors resist corrosion?
A9: Yes, the nickel or zinc plating offers strong corrosion resistance in humid or marine environments.
Q10: What makes Zhejiang Gaoshiwei a reliable supplier?
A10: The company provides high-precision manufacturing, strict quality control, and responsive after-sales service, ensuring dependable solutions worldwide.
In today's fast-evolving industrial and technological landscape, Metal Circular Connectors stand as a symbol of reliability, efficiency, and precision engineering. Their versatility across applications — from aviation to automation — demonstrates the essential role they play in modern connectivity.
Zhejiang Gaoshiwei Aviation Plugin Co., Ltd. continues to lead the industry by combining innovation with strict quality assurance, delivering connectors that meet global standards and exceed customer expectations. If you are looking for durable, high-performance Metal Circular Connectors tailored to your application, our team is ready to assist.
Contact us today to learn more about our full range of products, customization options, and technical support services.
