Deublin 1101 Series Rotary Union

Welcome to the definitive source for high-performance alternatives to the Deublin 1101 Series Rotary Union. If you’re looking for a reliable, leak-proof, and durable fluid transfer solution for your rotating equipment without the premium price tag of the OEM, you’ve found it. We engineered our 1101 series-compatible rotary unions to meet or exceed the performance specifications of the original Deublin models. They provide a seamless drop-in replacement for a wide range of industrial applications, including water, coolant, and hot oil service.

Deublin 1101 Rotary Unions offer superior performance for machine tool and industrial applications like coolant or MQL. Closed seal with full-flow design. Efficient media transfer without debris. Smooth coolant delivery at high speeds.

This page serves as a central hub for our entire line of 1101 series equivalents. Browse our models, compare specifications, and discover the perfect rotating union to enhance your operational efficiency and reduce costly downtime.

Key Features & Benefits of Our 1101 Series Alternatives

100% Drop-In Compatibility

Engineered for a perfect fit, our unions serve as direct replacements for any Deublin 1101 series model. The dimensions, porting, and performance characteristics are designed for seamless integration into your existing setup, eliminating the need for costly modifications.

Advanced Sealing Technology

A balanced mechanical seal combination, typically Carbon Graphite to Silicon Carbide, forms the core of our rotary union. This pairing provides an exceptional leak-proof barrier, minimizes friction and torque, and offers superior wear resistance for extended service life, even in demanding high-speed and high-pressure conditions.

Robust & Durable Construction

We machine the bodies from high-strength materials like anodized aluminum or brass, with stainless steel rotors for maximum corrosion resistance. The design includes deep-groove ball bearings to support the rotating components, ensuring smooth, stable operation at high RPMs.

Versatile Application Range

This monoflow, self-supported rotary union is a workhorse across numerous industries. You can use it to transfer media such as cooling water, glycol solutions, hydraulic oil, and compressed air in applications ranging from machine tool spindles and CNC centers to textile and plastics manufacturing.

Significant Cost Savings

Get the premium performance you demand without the premium OEM price. Our direct-sourcing model and efficient manufacturing allow us to provide a top-tier rotary joint at a fraction of the cost, improving your bottom line without sacrificing quality or reliability.

Technical Overview: Understanding the 1101 Series Design

The 1101 series is a monoflow (single passage) rotary union renowned for its self-supported design. This means it is supported by the machine’s shaft or journal via its own internal bearings.

Key design principles include:

• Balanced Mechanical Seals: The seals are pressure-balanced to minimize seal face wear, which drastically reduces torque and extends the operational life of the union.
• Labyrinth Seal & Drain Holes: A sophisticated labyrinth system protects the ball bearings from any media leakage, with large drain holes to safely vent any fluid that might bypass the primary seal over time.
• Low-Torque Operation: The combination of precision bearings and balanced seals results in a low-torque design, consuming less energy and placing minimal stress on the driving motor.

Applications

The versatility and reliability of our 1101 series alternatives make them essential components in a wide array of industries:

• Metalworking & Machine Tools: Perfect as a CNC coolant rotary joint, delivering high-pressure coolant directly through the spindle to the cutting tool, improving tool life and surface finish.
  Plastics & Rubber Manufacturing: Used in calendar rolls and extruders for heating or cooling purposes, ensuring precise temperature control.
• Textile Industry: Applied in drying cans and sizing machines for steam or water transfer.
• Steel Processing: Critical for cooling rolls in continuous casting operations to maintain product quality.
• General Industrial Equipment: Suitable for any application requiring fluid transfer to a rotating part, such as clutches, gearboxes, and indexing tables.

Ready to Upgrade Your Operations?

Stop overpaying for OEM parts. Enhance your equipment’s reliability and reduce your maintenance budget today. Browse our selection of Deublin 1101 series rotary union alternatives below or contact our expert sales team for a personalized quote.