Deublin 1116 Series “Closed Seal" Rotating Unions for Continuous Coolant Service

1116 Series “Closed Seal” Rotating Unions for Continuous Coolant Service

The Deublin 1116 Series High Speed Rotary Union is engineered for applications where coolant, air, or MQL (Minimum Quantity Lubrication) must be reliably transferred at extremely high spindle speeds. Designed for precision CNC machine tools, machining centers, and high-speed spindles, the 1116 Series delivers stable sealing performance, extended service life, and reduced downtime.

Our rotary unions are fully compatible replacements for Deublin 1116 models, offering equivalent performance at a significantly more competitive price point. Whether you’re upgrading existing equipment or sourcing cost-effective alternatives for OEM use, the 1116 Series is a trusted solution for maintaining production efficiency.

Key Features

• Single passage for coolant or MQL
• Closed seals for transfer line and similar applications
• Full-flow design has no obstructions to trap chips or debris
• Bearing-supported with threaded rotor for easy installation
• Deep groove radial ball bearings for smooth operation
• Labyrinth system and large vents to protect ball bearings
• Balanced mechanical seals made from silicon carbide for long life, even under difficult operating conditions
• Anodized aluminum housing resists corrosion

Why Choose Our 1116 Series Alternatives?

• Cost-Effective: Comparable quality to the original Deublin at a much lower price.
• Direct Replacement: Fully interchangeable with Deublin 1116 rotary unions.
• Reliable Performance: Tested for leak-free operation at high RPM.
• Short Lead Times: Fast delivery to minimize production delays.
• Custom Engineering Available: Tailored solutions for unique spindle requirements.

Order Your Deublin 1116 Series High Speed Rotary Union Today

Upgrade your CNC spindle performance with our 1116 Series rotary unions. Get the same high-speed sealing technology as Deublin, at a fraction of the cost.

👉 Contact us today for pricing, technical support, and bulk order options.