𐄀 Technology Connection to Future
The vast ocean holds tremendous opportunities. With the rapid development of ocean observation, underwater robotics, and deep-sea operation equipment, reliability of underwater electrical connections has become essential to stable equipment operation.
High pressure in deep-sea environments, saltwater and salt-spray corrosion, prolonged underwater immersion, and limited installation space all place stringent requirements on connector sealing performance, structural strength, and signal transmission capability. Conventional connectors are prone to water ingress and failure, potentially resulting in equipment shutdown or damage.
To accommodate different operating depths, current ratings, and equipment installation configurations, a comprehensive range of underwater connectors is essential. Yonggui has independently developed a standardized series of underwater connectors primarily for sealed electrical connections in marine environments. The portfolio covers applications from shallow water to ultra-deep-sea environments at depths of up to 7,000 meters.
The product portfolio includes two major categories: SM Series Metal-Sealed Connectors and SH Series Rubber-Sealed Connectors, covering more than 80 configurations and nearly 1,000 models. The series supports low-frequency signal transmission, combined data and power transmission, and hybrid optical-electrical transmission, providing reliable connectivity for marine engineering equipment.
Products Series
● Threaded coupling for smooth mating and unmating
● Gold-plated contacts with solder termination
● Supports blind mating, with multiple keying options to prevent mismating
● Visible and replaceable seals for convenient maintenance
● Glass-sintered structure for reliable sealing and enhanced safety
● Available with stainless steel or titanium alloy housings for high strength and corrosion resistance
● Supports low-frequency signals, high-current transmission, and combined data and power transmission
● Available in precision bulkhead and flange-mount configurations, with both axial and radial sealing
● Threaded coupling for simple and convenient operation
● Ultra-compact design with bulkhead mounting to save internal equipment space
● Stainless steel or titanium alloy housings with excellent corrosion resistance
● Supports 1–2 A low-current signal transmission
● Threaded coupling for simple and convenient operation
● Three mounting options: circular flange, square flange, and precision bulkhead mounting
● Stainless steel or titanium alloy housings for resistance to seawater corrosion
● Supports 15 A high-current transmission
● Withstand voltage up to 1500 V
● Threaded coupling for simple and convenient operation
● Three mounting options: circular flange, square flange, and precision bulkhead mounting
● Stainless steel or titanium alloy housings with high corrosion resistance
● Supports 3–10 A signal transmission
● Withstand voltage range: 600–1000 V
● The connector and cable form a cable assembly, with cable length customizable according to requirements
The SM/SH Series is widely used in marine engineering applications, including:
● Underwater lighting
● Underwater communications
● Underwater robots
● Towed arrays
● Marine animal tracking
● Ocean observation instruments
● Seafloor observation networks
● Underwater mining equipment
● Underwater security and detection systems
● Underwater energy platforms
● Deep-sea testing equipment
● Reliable connectivity for underwater applications
With years of experience in connector R&D and manufacturing, we have comprehensive capabilities in structural design, sealing simulation, and high-pressure hydrostatic testing.
For specialized underwater operating conditions, we have independently developed complete underwater sealed connection solutions. All products undergo rigorous pressure, corrosion, and durability testing in accordance with marine equipment standards. From early-stage sample testing and project-specific development to product selection, solution design, and final delivery, we provide comprehensive technical support throughout the project.
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