DEUBLIN 55/57 Series Rotary Joint for Cooling Systems | High-Precision, Low Torque Design

Description

The DEUBLIN 55/57 Series Rotary Joint is engineered specifically for industrial cooling system applications where stable fluid transmission, low torque, and compact structure are essential. Featuring a lightweight body, low rotary friction, and high concentricity alignment, this rotary joint delivers excellent sealing performance and extended service life—ideal for high-demand cooling cycles and continuous operational environments.

Designed with optional material combinations including impregnated graphite, bronze–silicon carbide, tungsten carbide, and other wear-resistant seal pairs, the 55/57 series effectively resists rust, scaling, and particulate contamination. The sealing faces are polished to a mirror-finished surface, ensuring enhanced sealing reliability and long-term stability under harsh working conditions。

Specifications & Optional Custom Configurations

• Compatible Size Range: DN10 – DN50

• Dual-pass rotary joint is available with a fixed supply pipe

• Single-pass model equipped with a pipe plug instead of an elbow

• Radial housing connection for compact installation

• Optional upgrades include:

  • Threaded leakage port connection

  • Splash-proof bearing protection

  • Nickel-plated or low-torque design configuration

Key Features of DEUBLIN 55/57 Series Rotary Joint

Single & Double Passage Options

Available in both one-way and dual-flow channels for multitasking cooling applications.

Self-Supporting Structure

Ensures stable rotation without requiring additional support hardware.

Low Friction Torque Design

Reduces energy loss and heat generation during long-term operation.

Precision Ball Bearings

Guarantees rotor coaxiality and smooth rotation performance.

Balanced Mechanical Seal

Maintains pressure balance and sealing consistency over time.

Three Leakage Ports

Improves monitoring of operating conditions and protects against fluid intrusion.

Bronze Forged Housing

Provides structural strength and enhanced durability.

Stainless Steel Rotor

Resistant to corrosion, oxidation, and fluid degradation.

 

Replacement Compatibility

Our products are 100% compatible with the following DEUBLIN series:

• DEUBLIN 55 Series Rotary Joint

• DEUBLIN 57 Series Rotary Joint

• DEUBLIN 155 Series Rotary Joint

• DEUBLIN 157 Series Rotary Joint

• DEUBLIN 255 Series Rotary Joint

• DEUBLIN 257 Series Rotary Joint

• DEUBLIN 355 Series Rotary Joint

• DEUBLIN 357 Series Rotary Joint

They can also replace rotary unions used in Sengtor, Kadant, Maier, and Kadia systems when properly matched to specifications.

 

Applications of DEUBLIN 55/57 Series Rotary Joint

The 55/57 Series is widely used across heavy-duty and precision industrial equipment requiring continuous fluid transfer between rotating and stationary components:

• Industrial cooling circuits

• Machine tool spindles

• Automotive manufacturing lines

• Metallurgical processing systems

• Heat exchanger and temperature-control loops

• Chemical & process cooling units

Whether installed on CNC machining equipment, automated tooling, or water-cooling production lines, the DEUBLIN 55/57 rotary joint provides long-lasting, stable rotation with reliable sealing performance.

Why Choose Our Factory-Made DEUBLIN 55/57 Series Rotary Joint

1. Factory-Direct Price Advantage

Unlike trading companies, we are a direct manufacturer, which allows us to provide lower prices and faster lead times while maintaining strict quality standards.

2. Precision Machining and Quality Assurance

Our technicians use CNC machines to dynamically test and pressure-check every unit before shipment, ensuring outstanding precision and reliable performance. This ensures zero leakage, stable rotation, and consistent performance over time.

3. Custom Engineering Support

We provide OEM customization based on your specifications—whether you need a unique port layout, thread size, or special material for high-temperature or corrosive environments.

4. Global Compatibility

Our Dublin 55/57 Series replacements are dimensionally interchangeable with those of leading brands, making them an ideal solution for maintenance or replacement without requiring modifications to your existing setup.

5. Reliable After-Sales Service

We support our customers with technical drawings, installation guides, and professional consultation to ensure smooth integration and long-term satisfaction.

Order Information

To ensure correct model matching, please provide:

• Original DEUBLIN model number

• Working medium (air, coolant, oil, etc.)

• Pressure, speed, and temperature requirements

• Connection type and port size

• Quantity and expected delivery time

We will recommend the best replacement rotary joint to perfectly fit your application.

Conclusion

If you’re looking for a reliable and affordable replacement for the DEUBLIN 55/57 Series Rotary Joint, our factory-manufactured rotary unions provide an ideal solution for cost-effective and durable performance.

With custom options, OEM compatibility, and guaranteed quality, our products are widely used across industries such as CNC machining, metalworking, plastics, textiles, and energy.

Experience the perfect balance between performance, price, and precision — directly from the manufacturer.