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What is the relationship between HYSF and Xiamen Cuida Technology?

Xiamen Cuida Technology Co., Ltd. is the official corporate entity behind the brand HYSF SUBSEA. Founded in 2016, the company operates under this name to conduct R&D, manufacturing, and global distribution of deep-sea interconnect components.

When reviewing contracts or official certificates, you may see the name “Xiamen Cuida Technology Co., Ltd.” This is our legal manufacturing entity.

  • Brand Name: HYSF is our registered trademark and global trading brand.
  • Operations: All manufacturing facilities, R&D centers, and quality control systems are managed by Xiamen Cuida Technology Co., Ltd..
  • Heritage: Since our founding in 2016, we have been dedicated to providing high-tech deep-sea solutions under this corporate structure.
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John Zhang

(CEO & Lead Engineer)
Email: [email protected]
With over 15 years of expertise in subsea interconnect technology, I lead HYSF's R&D team in designing high-pressure (60MPa) solutions. My focus is on ensuring zero-leakage reliability for ROVs, AUVs, and offshore instrumentation. I personally oversee the validation of our custom connector prototypes.

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Proven Solutions in the Field

A showcase of our successful collaborations with global marine robotics, energy, and research partners. Every project reflects our commitment to zero-leak integrity and operational reliability.

Custom High-Intensity Subsea LED Light & Mounting Bracket System
60MPa Metal Shell Bulkhead Connector with Triple Seal (4-61 Pins)
Custom 6-Port Watertight Enclosure & Subsea Interconnect System
HYSF-high-density-25-pin-subsea-signal-connector-for-oceanographic-sensors
High-Frequency Subsea Coaxial RF Connector Assembly (50-3 / 50-5)
Custom 6-Pin / 40A Medium-Power Subsea Connector
Custom Branching Subsea Cable Network (Tree Topology)
HYSF-custom-6-pin-40A-underwater-power-distribution-connector
Custom Molded Subsea Penetrator with Integrated Multi-Core Cable
50MPa High-Precision Subsea Pressure Sensor
Multi-Core Split-Type Watertight Connector (Diverse Configurations)
High-Performance Photoelectric Hybrid Subsea Connector
MCPBOF2-8MF Oil-Filled Pressure Compensated Connector (8-Pin)
Right Angle Molded Micro Bulkhead Connector (LPMBH-IL12/16MF Compatible)
Custom Branching Subsea Cable Network (Y-Splitter & Multi-Node)
5MP High-Definition Underwater Observation Camera (40MPa)
Custom Retractable Subsea Spiral Coiled Cable (Spring Cable)
MCBH-Hybrid 4+2 Photoelectric Subsea Connector (Power & Fiber Optic)
10-Pin Ethernet Subsea Connector (2 Power + 8 Network Cores)
Gigabit Ethernet 12-Pin Subsea Connector (4 Power + 8 Network)
Custom 1-to-3 Fan-out Subsea Splitter Cable System
Miniature Subsea Watertight Connector (Marine Bronze Base)
HYSF-140A-180A-high-current-underwater-power-connector-for-thrusters
PBOF Series Pressure-Balanced Oil-Filled Subsea Connectors
RMG Series 4-Pin Subsea Engineering Cable Plug
60MPa High-Pressure Metal Shell Watertight Connector (4-61 Pins)
Single-Pin High-Current (150A) Subsea Power Connector
Custom Subsea Bulkhead Flange Joint Connector
Integrated Subsea Interconnect & Imaging Solutions
Ultra-Miniature Subsea Watertight Connector Series (2-28 Pins)
5MP High-Definition Underwater Camera (40MPa / 316L Stainless Steel)
High-Strength Titanium Alloy Subsea Penetrator
All-New Next-Generation Subsea IP Network Camera Series
70MPa Ultra-High Pressure Metal 61-Pin Subsea Connector
Custom Miniature Single-Core In-Line Watertight Connector
Custom 6-Port Watertight Enclosure & Subsea Interconnect System
Micro Flange 3-Pin Subsea Bulkhead Connector (IL4MF Compatible)

Start Your Subsea Project with HYSF

Whether you need a quick quote for standard connectors or a complex custom cable assembly, our engineering team is ready to assist. Expect a technical response within 12 hours.

John Zhang

CEO

Jason Liu
Kevin Wang
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Lily Li
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