Deublin 1109 Series High Speed Rotary Union

Deublin 1109 Series Rotary Union Alternatives: High-Speed, Compact Coolant Solutions

Welcome to the definitive source for high-performance, cost-effective alternatives to the Deublin 1109 Series Rotary Union. Engineered for the rigorous demands of modern machine tools, our 1109 series-compatible rotary unions deliver the same exceptional performance, “Pop-Off™” seal technology, and operational reliability as the original, providing a superior value proposition for your manufacturing operations. Upgrade your CNC spindles with a solution designed for maximum efficiency and longevity.

In the world of high-speed machining, precision, speed, and reliability are the pillars of productivity. The ability to deliver high-pressure coolant through the spindle is no longer a luxury—it’s a necessity for achieving optimal tool life, superior surface finishes, and efficient chip removal. The Deublin 1109 Series has long been a benchmark for compact, bearingless coolant unions in these applications.

We recognize the critical role this component plays. That’s why we have developed a complete line of drop-in replacements for the Deublin 1109 series that meet or exceed original equipment manufacturer (OEM) specifications. Our mission is to provide engineers, maintenance managers, and procurement specialists with a smarter choice: a rotary union that delivers uncompromising quality without the premium price tag.

Key Features

• Single passage for coolant or MQL
• Pop-Off” technology allows unlimited dry running without media pressure.
• Full-flow design has no obstructions to trap swarf or debris
• Bearing-supported with threaded rotor for easy installation
• Dual ABEC 7 (ISO class P4) angular contact ball bearings
• Labyrinth system and large vents to protect ball bearings
• Balanced mechanical seals made from silicon carbide for long life, even under difficult operating conditions
• Aluminium housing, endcap anodised resists corrosion

Applications and Industries

Our alternatives to the Deublin 1109 series are engineered for versatility and are trusted by leading manufacturers across a wide range of industries and applications:

• CNC Machining Centers: Ideal for vertical and horizontal machining centers requiring through-spindle coolant for drilling, tapping, and milling operations.
• High-Speed Spindles: The lightweight, bearingless design is perfectly suited for spindles operating at speeds up to 40,000 RPM.
• Compact Machine Tools & Swiss-Type Lathes: The minimal footprint allows for easy integration into space-constrained environments.
• Transfer Lines: Provides reliable, long-life service in high-volume, automated manufacturing lines.
• Gun Drilling Operations: Delivers the consistent flow of high-pressure coolant needed for deep-hole drilling.
• Minimum Quantity Lubrication (MQL) Systems: The “Pop-Off” seals are essential for the near-dry machining environment of MQL, preventing premature wear.

Your Trusted Partner for Industrial Fluid Transfer Solutions

Don’t let the high cost of OEM components compromise your maintenance budget or operational efficiency. Our Deublin 1109 series-compatible rotary unions represent the pinnacle of performance, reliability, and value.

Ready to upgrade your machinery and reduce your costs?

Explore our full product catalog to find the specific model for your application.
Request a quote today and see how much you can save.
Contact our expert engineering team for technical support and product selection assistance.

Invest in a solution that works smarter for your business. Make the switch today and experience the difference in performance and price.