The 2 Passage Rotary Union is a high-precision mechanical device designed to transfer two independent media—such as coolant, hydraulic oil, compressed air, or MQL (Minimum Quantity Lubrication)—from a stationary supply line into a rotating machine component.
Compared with single-passage models, the dual-channel rotary union offers greater flexibility, making it ideal for modern CNC machining, packaging machinery, printing systems, and industrial automation. Whether you require simultaneous coolant + air supply, or hydraulic + sensor signal transfer, our 2 Passage Rotary Joint ensures reliable, leak-free performance under demanding operating conditions.
| Parameter | Specification Range | Notes |
|---|---|---|
| Number of Passages | 2 | Dual-channel independent flow |
| Media Compatibility | Coolant, hydraulic oil, air, MQL | Custom seals available for special fluids |
| Maximum Pressure | 80 bar / 1160 psi | Application-dependent |
| Maximum Speed | 20,000 RPM | Depending on size & configuration |
| Seal Options | Carbon-graphite / Silicon carbide | Optimized for wear resistance |
| Housing Material | Stainless steel, anodized aluminum | Corrosion-resistant |
| Port Connections | BSP, NPT, Metric threads available | Customization supported |
| Temperature Range | -20°C to +180°C | High-temp versions available |
Dual-Channel Media Transfer: Two independent passages for handling multiple fluids (coolant, air, oil) simultaneously.
Leak-Free Sealing Technology: Advanced carbon-graphite and silicon carbide seals ensure zero cross-contamination.
Durable Construction: High-strength stainless steel housing with corrosion resistance for long service life.
High-Speed Compatibility: Engineered to operate at spindle speeds up to 20,000 RPM.
Pressure Range: Suitable for applications up to 80 bar (1160 psi).
Maintenance-Friendly: Modular design with replaceable seals reduces downtime and maintenance costs.
Versatile Installation: Radial and axial port configurations available for flexible machine integration.
Cost-Effective Alternative: Equivalent performance to Deublin, Kadant, or RIX rotary unions at a more competitive price.
The dual-passage rotary joint is widely used in industries requiring the transfer of two different media at the same time:
CNC Machining & Metalworking
Coolant + Air blow-off for chip removal
Hydraulic actuation + lubrication in spindles
Packaging Machinery
Air + vacuum control in rotary sealing or labeling systems
Printing Industry
Ink circulation + cooling system in high-speed printing presses
Plastics & Rubber Processing
Hot oil + water transfer in roller heating/cooling systems
Automation & Robotics
Pneumatic control + sensor signals for robotic arms and indexing tables
Equivalent to Leading Brands – Our rotary unions are designed as cost-effective alternatives to Deublin and other global manufacturers, offering equal durability and precision.
Customization Options – We provide tailored solutions (seal materials, connection sizes, passage configurations) for specific industry needs.
Competitive Pricing – By optimizing manufacturing, we deliver superior value without sacrificing quality.
Reliable Performance – Proven in high-speed, high-pressure environments across Europe, North America, and Asia.
Global Support – Technical support and spare parts supply ensure continuous machine uptime.
Upgrade your machines with a high-performance 2 Passage Rotary Union today. Our dual-channel rotary joints guarantee reliable sealing, extended lifespan, and cost savings compared to OEM brands.
👉 Contact us now for a free quotation or technical consultation.
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THE WORLD'S LEADING ROTARY UNIONS MANUFACTURERS
