Customization & Engineering Services

Beyond the catalog. Discover our capabilities in bespoke mold design, high-voltage solutions, fiber optic integration, and rapid prototyping for unique project requirements.

Engineering & Development FAQs

Can you design custom Penetrators (Feedthroughs) for pressure hulls?

Penetrators are the most secure way to pass cables into a 1-atmosphere housing.

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Do you offer custom Strain Relief or Bend Limiters?

protecting the cable-connector interface is critical for dynamic systems (like ROV tethers).

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Can you build High-Voltage (HV) connectors above 3,000V?

High voltage underwater is risky.

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Do you design connectors for Extreme Temperatures (Cryogenic/Geothermal)?

Temperature extremes cause standard rubber to fail (crack or melt).

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Can HYSF Reverse Engineer obsolete or discontinued connectors?

Obsolescence management is a major headache for long-term projects.

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Can HYSF assist with Third-Party Certification (DNV / ABS)?

We act as your partner in compliance.

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Can I own the Exclusive Rights (IP) to a custom mold?

We respect your innovation.

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How do you validate a new Custom Design (Qualification Testing)?

Safety is engineered, not accidental.

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Do you offer Non-Magnetic connectors for defense applications?

Standard Stainless Steel (even 316L) can retain slight magnetism after machining.

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Ready to verify our manufacturing capabilities?

Download our full Company Presentation or schedule a virtual factory tour today.

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.

MCPBOF2-8MF Oil-Filled Pressure Compensated Connector (8-Pin)

Custom Branching Subsea Cable Network (Tree Topology)

Custom Molded Subsea Penetrator with Integrated Multi-Core Cable

10-Pin Ethernet Subsea Connector (2 Power + 8 Network Cores)

Single-Pin High-Current (150A) Subsea Power Connector

60MPa High-Pressure Metal Shell Watertight Connector (4-61 Pins)

Gigabit Ethernet 12-Pin Subsea Connector (4 Power + 8 Network)

Ultra-Miniature Subsea Watertight Connector Series (2-28 Pins)

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

Custom 6-Pin / 40A Medium-Power Subsea Connector

Custom High-Intensity Subsea LED Light & Mounting Bracket System

70MPa Ultra-High Pressure Metal 61-Pin Subsea Connector

Custom Subsea Bulkhead Flange Joint Connector

RMG Series 4-Pin Subsea Engineering Cable Plug

50MPa High-Precision Subsea Pressure Sensor

HYSF-high-density-25-pin-subsea-signal-connector-for-oceanographic-sensors

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

HYSF-140A-180A-high-current-underwater-power-connector-for-thrusters

High-Strength Titanium Alloy Subsea Penetrator

MCBH-Hybrid 4+2 Photoelectric Subsea Connector (Power & Fiber Optic)

Right Angle Molded Micro Bulkhead Connector (LPMBH-IL12/16MF Compatible)

HYSF-custom-6-pin-40A-underwater-power-distribution-connector

5MP High-Definition Underwater Observation Camera (40MPa)

All-New Next-Generation Subsea IP Network Camera Series

Miniature Subsea Watertight Connector (Marine Bronze Base)

60MPa Metal Shell Bulkhead Connector with Triple Seal (4-61 Pins)

5MP High-Definition Underwater Camera (40MPa / 316L Stainless Steel)

PBOF Series Pressure-Balanced Oil-Filled Subsea Connectors

Integrated Subsea Interconnect & Imaging Solutions

Multi-Core Split-Type Watertight Connector (Diverse Configurations)

Custom Miniature Single-Core In-Line Watertight Connector

Custom 1-to-3 Fan-out Subsea Splitter Cable System

High-Frequency Subsea Coaxial RF Connector Assembly (50-3 / 50-5)

Custom Retractable Subsea Spiral Coiled Cable (Spring Cable)

Custom Branching Subsea Cable Network (Y-Splitter & Multi-Node)

Micro Flange 3-Pin Subsea Bulkhead Connector (IL4MF Compatible)

High-Performance Photoelectric Hybrid Subsea Connector

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