HMS/HMD Rotary Union

Description

The HMS/HMD Rotary Union is a precision-engineered rotary joint designed for machine tool applications, coolant transfer, and dry-running environments. Known for its durability, high-speed performance, and advanced sealing technology, this rotary union is widely used in CNC machining centers, milling machines, drilling machines, and grinding systems.

Engineered as an alternative to leading brands such as Deublin, the HMS/HMD Rotary Union offers a cost-effective solution without compromising on quality, efficiency, or lifespan. Its versatile design supports coolant, air, MQL (Minimum Quantity Lubrication), and dry running, making it one of the most reliable and flexible rotary unions available today.

Key Features & Benefits

Advanced Seal Technology

Equipped with pop-off or balanced mechanical seals for dry-running capability.
Prevents premature seal wear even during unlimited dry running cycles.
Seal materials are available in carbon-graphite, silicon carbide, and tungsten carbide for extended service life.

High-Speed & High-Pressure Performance

Supports spindle speeds up to 20,000 RPM, making it ideal for high-performance CNC applications.
Handles coolant pressures up to 80 bar, ensuring reliable coolant delivery.

Versatile Media Compatibility

Works with water-based coolants, MQL, air, and oil.
Allows smooth transition between different media without leakage.

Long Service Life

Hardened steel housing ensures resistance to wear and corrosion.
Self-lubricating seal chambers reduce maintenance needs.
Reduced total cost of ownership compared to OEM alternatives.

Compact, Lightweight Design

Easy integration into CNC spindles and machine tool assemblies.
Space-saving configuration improves spindle balance and efficiency.

Cost-Effective Alternative

Delivers equivalent performance to Deublin’s HMS/HMD series at a competitive price point.
Ideal for machine tool builders and maintenance teams looking to reduce operating costs.

Applications in Machine Tools

The HMS/HMD Rotary Union is specifically designed for the machine tool industry, ensuring efficient coolant transfer, tool lubrication, and dry running operation.

Common Applications:

• CNC Machining Centers – Coolant and air delivery for high-speed spindles.

• Milling Machines – Reliable transfer of coolant to cutting tools.

• Drilling & Tapping Machines – Maintains proper lubrication during high-pressure drilling.

• Grinding Machines – Ensures consistent coolant supply to reduce tool wear.

• Turning Centers – Transfers coolant and MQL media for precision machining.

By providing uninterrupted coolant delivery and dry running capability, the HMS/HMD Rotary Union helps manufacturers improve:

• Tool life

• Machining accuracy

• Production efficiency

• Overall cost savings

Customer FAQs

Q1: What makes HMS/HMD Rotary Unions different from standard rotary joints?
A1: They are optimized for high-speed spindle applications and feature dry-running technology with advanced sealing.

Q2: Can the union switch between coolant and air?
A2: Yes, HMS/HMD Rotary Unions support coolant-to-air switching for MQL and dry operations.

Q3: Are these unions compatible with Deublin replacements?
A3: Yes, they are fully interchangeable with Deublin HMS/HMD series at a more competitive price.

Q4: What is the maximum speed rating?
A4: Depending on the model, up to 20,000 RPM.

Q5: Do you offer custom solutions?
A5: Yes, we can customize unions for specific spindle designs, media types, and operating pressures.

Conclusion – The Smart Choice for Machine Tool Rotary Unions

The HMS/HMD Rotary Union is the ultimate solution for CNC machine tool applications requiring reliable coolant transfer, high-speed operation, and dry-running capability.

With:

• Advanced seal technology

• High-speed, high-pressure performance

• Compatibility with coolant, MQL, and air

• Durable construction and long service life

• Lower costs vs OEM brands

…it ensures superior machining performance, reduced downtime, and significant cost savings.

👉 Upgrade your machine tool operations today with our HMS/HMD Rotary Union – the high-performance, cost-effective alternative trusted by manufacturers worldwide.