Deublin Rotary Unions for Coolant
For Faster Machining and Higher Productivity
Deublin’s coolant rotary unions offer many capabilities to reduce overall maintenance costs. The bearingless, coolant rotary union is a compact design with a high RPM due to the elimination of the bearings and reducing the overall cost. Deublin’s off-the-shelf rotating unions offer multiple configurations to fit any machining application.
Deublin’s 1117 bearingless rotary union utilizes closed seal technology for long service life under harsh operating conditions. With bearingless unions, speed can range from 10,000 rpm up to 50,000 rpm.
The bearingless 1121 rotary unions implement Pop-Off® sealing technology to allow dry running even in the absence of media pressure. The short Pop-Off stroke limits coolant leakage when there is a tool change.
The 1124 full-flow design features balanced mechanical seals with patented AutoSense® technology. This technology senses if the media is coolant, MQL, and dry air then responds by changing the seal operation. The bearingless rotating union is available with a threaded rotor only.
The 1139 bearingless, all-media rotary union features Deublin’s patented seal technology: Pop-Off®. Pop-Off seals remain closed when coolant is present, but allow a microscopic gap between the seals when pressure is removed. The non-rotating part of the union has a “stroke” to remain sealed when thermal expansion is caused by the spindle.
The 1154 AutoSense® rotary union automatically adjusts between sealing operations to accommodate different types of media. The long-stroke feature tracks drawbar movement.
CoolControl® technology reduces coolant leaks when there is a tool change. An air pilot is used to keep seals closed at the time of an axial draw bar movement. 1159 also contains AutoSense seal technology to adjust seals based on the media type reducing seal wear and maintenance.
Spindles with machined counter bores require a bore-mounted rotary union. The bore-mounted union features a channel that guides leakage through a drain line to prevent the spindle from flooding.
Deublin’s Pop-Off® is also available in a bore-mounted design. Pop-Off seal technology can run without media pressure reducing early wear of seals. Pop-Off rotary unions are best in through-spindle coolant applications.
Deublin’s bore mounted rotary unions are designed for long lasting service and ease of installation.
Through-spindle coolant rotary unions deliver media directly to the source to control overheating and increase productivity. The bore-mounted 1114 is easy to install and can handle up to 19mm of axial drawbar movement. Designed with AutoSense technology, the seals adjust based on the type of media.
Deublin’s bearing-supported, coolant rotary union is a single-piece design for ease of installation and replacement. Deublin offers two mounting styles, rotor and bore, to fit nearly all machining applications.
Deublin’s rotary union for coolant is designed with closed seal technology to reduce seal wear by remaining closed with or without the presence of media. The bearing supported rotary union can absorb the spindles thrust load reducing early wear.
Deublin’s Pop-Off® design allows unlimited dry running without media pressure to prevent early seal wear. Pop-Off rotary unions are best for machining that utilizes through-spindle coolant.
Deublin’s AutoSense® sealing technology automatically senses the type of media and responds by adjusting the seal operation. This response provides higher feed rates and reduces unnecessary downtime. The threaded rotor is available in radial and axial connections with ease of installation.