OTHERS

A Rotary Union has many alternative names depending on the industry, application, and region. It ensures a sealed, reliable connection that maintains the integrity of the media being transferred, even under high pressures and extreme temperatures. Commonly used in industries such as manufacturing, construction, oil & gas, and metallurgy, rotary unions are essential for applications requiring continuous and efficient fluid or signal transfer in rotating systems.

Common Alternative Names of Rotary Union

1. Rotary Joint

Most common alternative name

Used widely in:

• Industrial machinery
• Hydraulic systems
• CNC equipment
• Automation industries

Example:

• Hydraulic Rotary Joint
• Rotary Joint Manufacturer
• CNC Rotary Joint

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2. Rotating Union

A direct synonym of rotary union.

Common in:

• North America
• Industrial equipment catalogs
• Mechanical engineering documents

Example:

• Water Rotating Union
• Steam Rotating Union
• Industrial Rotating Union

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3. Swivel Joint

Usually refers to a rotating connection allowing fluid transfer.

Common applications:

• Hydraulic equipment
• Construction machinery
• Marine systems
• Heavy machinery

Example:

• Hydraulic Swivel Joint
• High Pressure Swivel Joint

Note: A swivel joint can sometimes refer to a simpler rotating connection without mechanical seals, so it is not always identical to a rotary union.

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4. Rotary Coupling

Used when emphasizing the connection function.

Common in:

• Automation
• Pneumatic systems
• Industrial equipment

Example:

• Rotary Fluid Coupling
• Rotary Coupling Assembly

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5. Rotary Connector

A broader engineering term.

Used for:

• Electrical rotary connectors
• Fluid rotary connectors

For fluid applications:

• Fluid Rotary Connector
• Pneumatic Rotary Connector

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6. Fluid Rotary Union

A more descriptive technical term.

Used for:

• Water
• Oil
• Coolant
• Hydraulic fluids

Example:

• Fluid Rotary Union Manufacturer

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7. Rotary Transfer Joint

Common in engineering documents.

Emphasizes:

• Transfer of media
• Rotating equipment connection

Applications:

• Machine tools
• Printing machines
• Paper machinery

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8. Rotary Seal Joint

Focuses on sealing technology.

Used in:

• Mechanical engineering
• Custom rotary equipment

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9. Rotating Fluid Coupling

A descriptive industrial term.

Used for:

• Hydraulic applications
• Cooling systems
• Process equipment

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10. Rotary Pipe Joint

Common in:

• Steam systems
• Paper machines
• Drying cylinders

Applications:

• Steam Rotary Joint
• Thermal Oil Rotary Joint

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Industry-Specific Names

CNC Machine Tool Industry

Common terms:

• CNC Rotary Union
• Coolant Rotary Union
• Spindle Rotary Union
• High-Speed Rotary Union
• Tool Cooling Rotary Joint
• Through-Spindle Coolant Rotary Union (TSC Rotary Union)

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Hydraulic Industry

Common terms:

• Hydraulic Rotary Union
• Hydraulic Rotary Joint
• Hydraulic Swivel Joint
• Hydraulic Rotating Union
• Multi Passage Rotary Union

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Pneumatic Industry

Common terms:

• Pneumatic Rotary Union
• Air Rotary Union
• Air Rotary Joint
• Rotary Air Coupling

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Water Cooling Applications

Common terms:

• Water Rotary Union
• Water Rotary Joint
• Cooling Water Rotary Union
• Water Swivel Joint

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Steam and Thermal Applications

Common terms:

• Steam Rotary Joint
• Steam Rotary Union
• Thermal Oil Rotary Union
• High Temperature Rotary Joint

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Multi-Channel Applications

Common terms:

• Multi Passage Rotary Union
• Multi Channel Rotary Joint
• Multiple Passage Rotary Union
• Dual Passage Rotary Union
• Double Channel Rotary Union

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Heavy Industry

Common terms:

• Heavy Duty Rotary Union
• Industrial Rotary Joint
• Steel Mill Rotary Union
• Continuous Casting Rotary Union
• Cooling Roll Rotary Union