Harsh Environment & Special Connectors
SINOCONNECTORS provides connector solutions engineered for demanding environments where water, pressure, corrosion, vibration, shock, temperature, voltage, explosive atmospheres, or special installation requirements can affect connection reliability.
Our product range covers water-tight circular connectors, deep-sea connectors, wet-mate connectors, marine anti-corrosion connectors, optical-electrical hybrid connectors, load-bearing underwater connectors, explosion-proof connectors, high-voltage connectors, high-temperature connectors, and other application-specific interconnect solutions.
Waterproof & Sealed
Connector families are available for rain, splash, immersion, underwater, and pressure-sealed applications. Protection method and pressure capability vary by series.
Corrosion Resistance
Stainless steel, titanium alloy, aluminum bronze, aluminum alloy, nickel-plated finishes, passivation, and other material / surface-treatment options are available for marine and corrosive environments.
Vibration & Shock Resistance
Selected series are designed for severe vibration and mechanical shock conditions in marine, transportation, defense, aerospace, machinery, and special equipment.
Pressure Resistance
Products are available for shallow-water sealing, deep-water operation, wet-mate connection, and special high-pressure underwater applications.
EMI / RFI Shielding
Selected connector families provide electromagnetic shielding for signal integrity in electrically noisy environments.
Wet-Mate Capability
Special underwater connector families allow mating and unmating under wet conditions, enabling faster maintenance and reconfiguration of subsea systems.
High Voltage & High Power
Special connector families are available for high-voltage and high-current transmission in compact equipment and demanding environments.
Custom Environmental Adaptation
Connector structure, shell materials, seals, cable termination, tail accessories, contact arrangements, and environmental performance can be configured according to project requirements.
Harsh Environment & Special Connector Product Range
This page presents the main micro and miniature connector families directly. There are currently no lower-level product pages, so the following information is intended to help customers compare the available series and identify the most suitable direction for their application.
SHX27 Series
Metal-shell wet-mate water-tight connectors for high-voltage and high-power transmission in underwater systems.
- Wet-mate connection and disconnection
- Radial and axial sealing structure
- Vulcanized waterproof cable tail
YMG Series
Marine anti-corrosion connectors engineered for humid, rain-exposed and corrosive shipboard and offshore environments.
- Bayonet quick coupling
- Hyperboloid wire-spring contacts
- Multiple corrosion-resistant shell options
GDM Series
Wet-mate optical-electrical hybrid connectors integrating power, electrical signals and optical data transmission underwater.
- Optical + electrical hybrid transmission
- Wet-mate underwater operation
- Power and high-bandwidth data integration
SHX4 Series
Deep-water sealed connectors designed for underwater electrical and signal transmission at depths of 1000 m or deeper.
- Radial and axial pressure sealing
- Mechanical or vulcanized waterproof tail
- Titanium, stainless steel or aluminum bronze
SHX10 Series
High-pressure water-tight circular connectors with glass-to-metal sealed receptacles and three-start threaded quick coupling.
- Glass-to-metal hermetic receptacle
- Anti-loosening and anti-mismating
- Blind-mating support
SHXL13 Series
Sonar water-tight connectors designed for underwater electrical signal transmission at depths of 300 m or deeper.
- Designed for sonar water-tight connection
- Radial and axial sealing
- Vulcanized waterproof cable tail
SHX15 Series
Compact high-density water-tight circular connectors for equipment exposed to moisture, splash and marine operating conditions.
- Compact and lightweight construction
- Five-key anti-mismating design
- Stainless-steel passivated shell
SHX16 Series
Water-tight GJB 599B / MIL-DTL-38999-type circular connectors combining high contact density with EMI/RFI shielding.
- High-density circular interface
- Removable contacts on applicable versions
- Multiple shell material configurations
Waterproof & Special Connector Solutions
Built for demanding marine, subsea and industrial environments, our connector families support reliable interconnection under water pressure, salt spray, corrosion, vibration and other severe operating conditions. Multiple shell materials, sealing methods and wet-mate configurations are available to match different application requirements.
Pressure
Resistance
Materials
Options
Solutions
Series Quick Comparison
| Series | Typical Environment | Sealing / Special Capability | Shell Material | Key Advantage | Typical Use |
|---|---|---|---|---|---|
| SHX15 | Water, rain, splash | IP68 sealed, general waterproof | Brass / Nickel Plated | Cost-effective, reliable sealing | Outdoor equipment, sensors |
| SHX16 | Harsh marine, oily, salt spray | IP67/IP68, MIL-style waterproof | Aluminum Alloy | MIL-DTL-5015 style, rugged | Marine & industrial equipment |
| YMG | Salt spray, corrosion-prone | Anti-corrosion, sealed | Brass / Stainless Steel | Superior corrosion resistance | Marine & offshore systems |
| SHX4 | High pressure, deep water | Up to 600 bar, deep-water sealed | Stainless Steel / Titanium | Extreme pressure performance | ROV, subsea instruments |
| SHX13 | Underwater, vibration | Sonar/underwater rated, IP68 | Aluminum Alloy | Sonar & vibration resistant | Underwater sonar systems |
| SHX27 | Wet-mate, frequent connect | Wet-mate, IP68 when mated | Brass / Stainless Steel | Safe connect in wet conditions | Diving, marine robotics |
| GDM | EMI environment, signal integrity | EMI shielding, high density | Aluminum Alloy | 360° shielding, low noise | Communications, avionics |
| SHX10 | Compact, limited space | Miniature, IP67/IP68 | Aluminum Alloy | Small size, high reliability | Compact devices, wearable |
Key Technical Capabilities
Values vary by series. Please contact us for detailed specifications.
Water-Tight Sealing
Rain to Deep-Sea Splash, immersion &pressure-sealed options
Deep-Sea Pressure
Up to 70 MPa Representative capabilityup to 7000 m
Salt Spray Resistance
Up to 1000 h Depending on shellmaterial & finish
Vibration & Shock
Severe Environment Rated Selected families up to20,000 Hz vibration
Operating Temperature
Up to +350°C Series-dependentthermal capability
Shell Materials
Multiple Material Options Aluminum, stainless steel,titanium, bronze & more
Contact & Transmission
Signal to High Power Mixed contacts, coaxial &up to 300 A options
Cable Sealing
Multiple Sealing Methods Mechanical, vulcanized,molded & pressure-balanced
EMI / RFI Shielding
Shielded Metal-Shell Options For noise-sensitivesignal applications
Wet-Mate Capability
Connect Under Wet Conditions SHX27, GDM &deep-sea wet-mate families
Hybrid Transmission
Power + Signal + Optical Electrical, data, coaxial& fiber configurations
Tailored Customization
Application-Specific Design Materials, sealing, contacts,mounting & cable integration
Custom Harsh Environment Connector Solutions
From concept to production, we provide fully customized connectors engineered for your toughest environments and exact application requirements.
- Shell material selection: Aluminum, Brass, Stainless Steel, Titanium
- Sealing design: IP67 / IP68 / IP69K, high-pressure, wet-mate
- Contact arrangement: Power, signal, high density, mixed layouts
- Cable termination: Solder, crimp, PCB, overmolded & backshell options
- Corrosion-resistant finishes: Nickel, Black Zinc, Passivation, Anodizing
- Wet-mate or underwater connection customization
- Hybrid optical-electrical integration for advanced systems
Engineering &Manufacturing
Precision Manufacturing
Precision machining and controlled component manufacturing help maintain consistent shell, sealing, interface and contact dimensions.
Professional Assembly
Controlled assembly processes are used for contacts, seals, shells, rear accessories, cables and special sealing structures.
Inspection & Testing
Verification can include electrical performance, water pressure, salt spray, vibration, shock, temperature and sealing tests.
Engineering Support
Support covers series selection, environment review, cable and material selection, customization, prototyping and qualification.
FAQ
Find answers to common questions about circular connectors,
Frequently Asked Questions
Answers to common questions about harsh-environment, marine, underwater, wet-mate, explosion-proof, high-voltage and customized connector solutions.
01 What are harsh-environment connectors?
Harsh-environment connectors are interconnect products designed to maintain reliable electrical, signal, data, or optical transmission under demanding conditions such as water exposure, hydrostatic pressure, salt spray, vibration, shock, extreme temperature, high voltage, or explosive atmospheres.
02 What harsh-environment connector families does SINOCONNECTORS provide?
The available product range includes SHX15, SHX16, YMG, SHX4, SHXL13, SHX27, GDM, SM, SHX10, SHX30, SHX33, SHX34, SHX35, FBG, FBZ, J599FS, J599HV, J599HF, and J599HT families.
These families cover water-tight, marine, wet-mate, deep-sea, explosion-proof, high-voltage, high-temperature, and high-vibration requirements.
03 What is the difference between SHX15 and SHX16?
Both are 0.5 MPa water-tight connector families. SHX15 references GJB 2889B and uses solder contacts, while SHX16 references GJB 599B / MIL-DTL-38999K-type requirements and adds features such as EMI/RFI shielding and removable contacts in non-glass-sealed versions.
04 Which connector is suitable for 1000 m or deeper underwater operation?
SHX4 is designed for 1000 m water depth or deeper and can withstand 10 MPa static water pressure when mated.
For ultra-deep applications, SHX30, SHX33, SHX34, and SHX35 are designed for operation at 7000 m in the referenced product families.
05 Which products support wet-mate connection?
SHX27 and GDM are wet-mate metal-shell connector families.
SHX30, SHX33, SHX34, and SHX35 are deep-sea wet-mate families using molded-rubber structures.
06 Do you provide optical-electrical hybrid underwater connectors?
Yes. GDM Series integrates electrical power / signal contacts and optical fibers in a wet-mate water-tight interface.
Representative products support single-mode or multimode fiber configurations depending on model.
07 Which connector is suitable for a towed sonar array or load-bearing cable?
SM Series is designed for load-bearing underwater applications and can withstand 50,000 N axial tensile load in the referenced configuration.
It also incorporates PU jacket sealing and an oil-filled pressure-balancing structure.
08 Which product is suitable for marine corrosion?
YMG is specifically designed as a marine anti-corrosion connector family.
SHX4, SHX16, J599FS, and other series also provide shell and finish options suitable for salt-spray and marine environments.
09 What salt-spray resistance is available?
Salt-spray capability depends on material and finish. Representative values across the catalog include 48 h, 96 h, 500 h, and 1000 h.
10 Do you offer explosion-proof connectors?
Yes. FBG is a flameproof connector family with referenced protection marking Ex db IIC T6 Gb.
FBZ is an increased-safety connector family with referenced marking Ex ec IIC T4 Gc and IP68 protection.
11 What is the difference between FBG and FBZ?
FBG uses a flameproof enclosure concept designed to contain an internal explosion and prevent ignition of the surrounding atmosphere.
FBZ uses an increased-safety concept based on insulation materials, creepage distances, electrical clearances, and construction intended to prevent ignition during normal operation.
12 Do you have high-voltage connectors?
Yes. J599HV is designed for high-voltage, high-current, high-temperature, and high-vibration applications.
Representative performance includes 3500 V dielectric withstand voltage and contact current up to 300 A depending on contact size.
13 Do you have connectors for very high temperatures?
Yes. J599HT is a high-temperature GJB599III-type special connector family with referenced temperature capability up to 350°C.
Detailed duration and model-specific ratings should be confirmed against the selected specification.
14 Which connector is suitable for strong vibration?
J599HF is a self-locking connector family designed to prevent loosening under strong vibration.
J599HV, J599FS, SHX16, YMG, and other series also provide robust vibration performance depending on the application.
15 Can harsh-environment connectors be customized?
Yes. Customization may include shell materials, surface treatment, contact arrangements, sealing structure, pressure rating, cable termination, tail accessories, optical-electrical hybrid layouts, shielding, keying, mounting, and special environmental adaptation.
16 Do you provide custom cable assemblies?
Yes. Cable assemblies can be developed according to connector series, cable type, wire size, shielding, waterproof requirement, length, strain relief, pressure requirement, pin assignment, and application environment.
17 How do I choose the correct underwater connector?
Important selection factors include:
- Water depth and static pressure
- Wet-mate or dry-mate requirement
- Current and voltage
- Contact count
- Signal and optical requirements
- Cable diameter
- Shell material and corrosion level
- Mechanical load
- Maintenance method
18 How do I choose between stainless steel, titanium, aluminum bronze, and aluminum alloy?
Material selection depends on corrosion exposure, weight, pressure, mechanical strength, galvanic compatibility, cost, and environmental life.
Titanium and stainless steel are commonly considered for demanding marine applications, while other materials may be suitable depending on project conditions.
19 What information should I provide for an explosion-proof connector inquiry?
Please provide:
- Hazardous-area classification
- Required explosion-protection concept
- Gas group
- Temperature class
- Voltage and current
- Contact count
- Cable type
- Cable gland requirement
- IP rating
- Installation method
- Required certification
20 What information should I provide for a custom harsh-environment connector project?
For faster product selection and engineering evaluation, please provide as much of the following information as possible:
- Application / equipment type
- Operating environment
- Water depth or pressure
- Wet-mate or dry-mate requirement
- Temperature range
- Vibration / shock requirement
- Salt-spray / corrosion requirement
- Voltage and current
- Signal / data / optical requirements
- Contact count
- Cable specification and diameter
- Mounting method
- Shell material preference
- Sealing requirement
- Required standard / certification
- Estimated quantity
Who We Are
Your Partner for Industrial Connection Solutions
We specialize in industrial electrical connectors and related components, providing reliable connection solutions for demanding applications. Our products cover circular connectors, rectangular connectors, contacts, accessories, cable assemblies and customized solutions.
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Experienced engineers dedicated to solving complex connection challenges.
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