LINKHIVE Fluidic/Pneumatic Circular Connectors: High-Performance Hybrid Solutions for Demanding Applications
Integrating Electrical and Fluidic Interfaces in One Compact Push Pull Connector – A Future-Proof Solution for Medical, Industrial Automation, and Underwater Systems
LINKHIVE proudly introduces its comprehensive range of fluidic/pneumatic circular connectors, delivering robust hybrid connectivity by integrating both electrical contacts and sealed pneumatic (fluid or gas) channels into a single push pull connector. Engineered to meet the evolving demands of precision medical devices, laboratory automation systems, industrial machinery, and underwater electronics, our hybrid series offers unmatched performance, space-saving benefits, and total design flexibility.
Through our commitment to engineering excellence, LINKHIVE’s fluidic circular connectors combine precision manufacturing, reliable sealing technologies, and the proven push pull self-latching mechanism to ensure quick, secure, and error-free connections—every time.
🌐 What Are Fluidic Circular Connectors?
Fluidic circular connectors, also known as pneumatic hybrid connectors, are designed to simultaneously handle electrical signal/power transmission and fluidic or pneumatic pathways (e.g., air, gas, liquid). These connectors feature internal channels with reliable seals that allow safe flow of fluids while maintaining high signal integrity in compact spaces.
They are especially beneficial in applications where multiple cabling types are traditionally needed, helping reduce clutter, minimize connection errors, and simplify equipment design.

🔩 LINKHIVE’s Hybrid Product Family – An Overview
LINKHIVE offers a full portfolio of fluidic/pneumatic push pull connectors under multiple form factors, supporting various configurations:
Featured Models:
6 electrical contacts + 1 fluidic port
Compatible with LEMO B series
Compact size for medical and lab devices
Lightweight with medical-grade materials
Ideal for medicao systems or handheld tools
Rugged metal housing, high sealing
Suitable for industrial automation and field environments
IP68-rated hybrid connector
Designed for submersible sensors and marine vehicles
Each series includes plug and socket options with various keying orientations, panel mount types, and cable clamp diameters.


🔧 Key Features & Advantages
✅ 1. Compact Integration
LINKHIVE’s connectors consolidate electrical pins and fluidic ports in one shell, eliminating the need for multiple separate interfaces.
✅ 2. Sealed Fluidic Channels
Our fluidic contacts are pressure-tested and designed to prevent leakage, backflow, or cross-contamination. Pressure resistance up to 6 bar is available.
✅ 3. Electrical Contact Versatility
2 to 10 contacts
Signal or power transmission
Gold-plated brass or copper alloy pins
Support for AWG 16–28 cable sizes
✅ 4. Push Pull Locking
All models adopt the self-latching push pull mechanism—a fast, reliable, and intuitive way to connect and disconnect, even in tight spaces or under gloves.
✅ 5. Waterproof Ratings (up to IP68)
Selected models (e.g., FGG 3K, W108) support fully sealed operation in wet, dusty, or underwater environments.
✅ 6. Material Options
Metal (nickel-plated brass, stainless steel)
Plastic (medical-grade PBT, PEI)
Mixed materials for weight-sensitive designs
✅ 7. OEM/ODM Supported
We offer flexible customization:
Number and size of fluidic ports
Contact layouts and shell size
Overmolded cable assemblies
Company branding, packaging, serialization
🏥 Applications by Industry
LINKHIVE’s fluidic circular connectors are trusted across multiple advanced sectors. Here’s how each model finds its niche:
1. Medical Devices
Ventilators & Anesthesia Machines: connect air/gas delivery with control signals in one interface
Patient Monitors: integrate pressure sensors, suction systems, and electrical modules
Diagnostic Instruments: seamless sample handling + data transmission
Our 3B108 and B108 models are widely adopted by OEMs in medical capital equipment and disposable accessories.
2. Laboratory & Analytical Automation
Automated pipetting systems
Reagent delivery and suction pumps
Gas chromatography or mass spectrometry (GC/MS) setups
Liquid sampling modules
Combine fast fluid connections with signal control in compact benchtop equipment.
3. Industrial & Robotic Applications
Gripper and actuator controls (pneumatic fingers, arms)
Tool changers with air-supply and control signal needs
Process control for flow meters and sensors
Our IP68-rated 3K110 connector ensures sealing and durability in harsh environments.
4. Underwater & Harsh Environments
ROV (Remotely Operated Vehicle) sensors
Diving equipment and submersible cameras
Marine laboratory tools
The W108 8+1 provides both power and pressure data channels in deep water settings.
🔍 Technical Specifications Overview
| Parameter | Specification |
|---|---|
| Contact type | Solder, Crimp, PCB (custom) |
| Electrical contact count | 2–10 contacts |
| Fluidic ports | 1–2 sealed channels |
| Operating voltage | Up to 250V |
| Current rating | 1A–10A depending on contact size |
| Fluid pressure rating | Up to 6 bar (tested for air/water) |
| Protection rating | IP50 / IP68 (depending on model) |
| Operating temperature | -40°C to +120°C |
| Shell sizes available | Miniature to Large (B, 2C, 3K, 4K sizes) |
| Mating cycles | ≥ 5000 cycles |
| Customization | Available for all series |
🔄 Compatibility with Industry Standards
LINKHIVE’s hybrid connectors are intermateable with LEMO, ODU, and Fischer series for many configurations, allowing easy replacement or system upgrades.
Models like FGG 3B108 8+1 and FGG 2C fluidic socket are designed to match popular industry interface standards, making integration fast and cost-effective.
📦 Packaging & Accessories
Standard: Anti-static PE bag + foam insert + label
Optional: Retail gift box, OEM branding, cable assemblies
Available with or without tubing pre-installed
Customized caps, strain relief boots, and color-coded keying available
💬 Customer Feedback & Use Case
“We used to run two separate cables for air suction and signal. LINKHIVE’s hybrid connector simplified our assembly, cut wiring time in half, and improved reliability under pressure.”
— OEM R&D Engineer, Germany
“The push pull version with fluidic shut-off saved us from cross-contamination in our diagnostics workflow.”
— Medical Device Integrator, India
🚀 Why LINKHIVE?
15+ years connector manufacturing experience
ISO9001 certified production and 100% tested products
Competitive pricing and global shipping
Engineering support from concept to mass production
📞 Contact Us
If you’re looking for high-quality fluidic/pneumatic circular connectors, whether for integration into a new design or to replace an existing LEMO/ODU part, we’re here to help.
📧 Email: mia@linkhiveconnectors.com
🌐 Website: www.linkhiveconnectors.com
📞 Tel/WhatsApp: +86-18073352853



