Custom Rotary Unions

When off-the-shelf rotary unions fall short, custom rotary unions offer the ideal solution for your specific operating requirements. Whether you need a bespoke rotary joint for high-speed spindles, extreme pressure conditions, or multi-media transfer, our precision-engineered made-to-order rotary unions are designed to meet your exact specifications. Unlock peak efficiency and reliability for your industrial equipment with Custom Rotary Unions. Whether you’re looking for precision-engineered solutions for fluid, gas, or mixed-media transfer in demanding environments, custom rotary unions deliver unmatched versatility for diverse industries and applications.

What is a Custom Rotary Union?

A custom rotary union, also known as a rotary joint or swivel joint, is a specialized mechanical device designed to transfer media—such as water, air, hydraulic oil, coolant, steam, or gas—between stationary and rotating parts. Each union can be engineered to meet unique application requirements, including high-speed rotation, elevated pressure, extreme temperatures, and space constraints.

Why Choose a Custom Rotary Union?

Not all applications are the same. Many industries, from aerospace to textiles and from robotics to oil & gas, require specialized rotary fluid transfer solutions. A custom rotary union ensures optimal sealing performance, longer service life, and seamless integration into your existing equipment.
Engineered to Fit: Designed to match your dimensions, materials, and port configurations.
Enhanced Performance: Minimize leakage, maximize flow rates, and handle extreme temperatures and speeds.
Application-Specific Designs: Customized for your exact media—air, hydraulic oil, steam, coolant, or vacuum.

Common Customization Options

FeatureDescription
PassagesSingle, dual, or multi-passage for simultaneous media transfer
Media CompatibilityDesigned for air, water, oil, steam, coolant, vacuum, or mixed media
Seal TechnologyMechanical seals, balanced seals, lip seals, or custom hybrid sealing
Connection TypesThreaded, flange, quick-connect, or custom-mounting options
MaterialsStainless steel, brass, aluminum, carbon steel, or special alloys
Speed & Pressure RatingsTailored for low-speed to ultra-high-speed and low to ultra-high pressure

Design Process: From Concept to Delivery

We follow a structured design process to ensure your OEM rotary union performs flawlessly:

  • Requirement Gathering – Media, pressure, RPM, installation space
  • 3D Modeling & Prototyping – CAD visualization before production
  • Material & Seal Selection – Based on performance criteria
  • Precision Manufacturing – CNC machining, grinding, and assembly
  • Testing & QA – Pressure, leakage, and rotation testing
  • On-Time Delivery – Globally shipped, fully inspected

Ordering Your Custom Rotary Union is Easy

Need a bespoke rotary joint? We’re here to help!

Simply share your technical requirements or a drawing—our engineers will guide you through the process and deliver a fully customized rotary union that fits your exact application.

  • Fast quotation
  • Flexible MOQ
  • Engineering support
  • Competitive pricing for high-quality solutions

Global Supply, Local Support

As a leading custom rotary union manufacturer based in China, we serve clients across North America, Europe, Southeast Asia, and beyond. Our export-grade components match the quality of brands like Deublin, DSTI, and Rotoflux—at far more competitive pricing.

  • Sale! Rotary Union Custom TimingRotary-Union-Timing-Valve

    Rotary Union Custom Timing for Precision Fluid Transfer Applications

    Original price was: $220.00.Current price is: $201.00.
    • Product name: Rotary Union Custom Timing
    • Flow Stations: 2-10
    • Max Hydraulic Pressure: 7,500 PSI
    • Max Temperature: 225°F
    • Max RPM: 50
    • Media Compatibility: Air, Gas, Oil, Steam
  • Sale! Rotary Union Timing ValveRotary-Union-Timing-Valve

    Multi-passage Multi-station Rotary Union Timing Valve

    Original price was: $220.00.Current price is: $201.00.
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  • Sale! 1690-000-168

    Deublin 1690-000-168 Rotary Union

    Original price was: $140.00.Current price is: $126.00.
    • Part Number: 1690 000 168
    • MRotor Connection G 1″-11 RH
    • Housing Connection 1/4″-18 NPT
    • Maximum Air Flow 40 CFM (1132 l/min)
    • Maximum Air Pressure 150 psi (10 bar)
    • Maximum Air Temperature 250°F (121°C)
    • Maximum Hydraulic Pressure 3000 psi (207 bar)
    • Maximum Hydraulic Temperature 250°F (121°C)
    • Vacuum Maximum Pressure -13.75 psi (-0.95 bar)
    • Vacuum Maximum Temperature 250°F (121°C)
  • Sale! 1116-048-143

    Deublin 1116-048-143 Rotary Union

    Original price was: $80.00.Current price is: $77.00.
    • Part Number: 1116-048-143
    • Max Pressure:210 bar (3,000 psi)
    • Max Speed:6,000 RPM
    • Media Compatibility:Water, Steam, Hydraulic Fluids, Compressed Air
    • Materials: Stainless Steel, Brass
    • Seals:Mechanical Seals, Silicon Carbide (Optional)
    • Channels:Single or Multi-Channel Configurations
    • Temperature Range:-40°C to 200°C (-40°F to 392°F)
    • Dimensions:Compact design suitable for tight spaces
    • Mounting Options:Various configurations for different installation requirements