Engineering selection and product sourcing
Deublin
Deublin is a US maker of rotary unions for coolant, air, steam, oil and multi-media, plus through-bore slip rings, founded in 1945 and owned by the HOERBIGER Group since 2019. Its US base is in Waukegan, Illinois (+1 847 689 8600), and Deublin UK is in Andover, Hampshire (+44 1264 333355).
Pricing and availability
Source Deublin parts or compare a suitable alternative
Need Deublin parts, a replacement or a suitable alternative? Send us a part number, or tell us what the machine needs to do. Our UK engineers will come back with the right product, pricing, lead time and delivery, whether that is the original part, a checked alternative or a complete axis.
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| Founded | 1945 |
|---|---|
| Founder | Luke Deubler and Dick Linn |
| Owner / parent | HOERBIGER Group |
| Headquarters | Waukegan, IL 60085-6747, United States |
| Website | deublin.com |
Manufacturer information and published contact details
Deublin contact details
Deublin USA
2050 Norman DriveWaukegan, IL 60085-6747
United States
Telephone +1 847 689 8600
Email info-us@deublin.com
Website deublin.com
Deublin UK
6 Sopwith Park, Royce Close, West PortwayAndover SP10 3TS
United Kingdom
Telephone +44 1264 333355
Email info-uk@deublin.com
Deublin Germany
Florenz-Allee 155129 Mainz
Germany
Telephone +49 6131 4998 0
Email info-DE@deublin.com
Deublin Italy
Via Guido Rossa, 9 – Località Monteveglio40053 Valsamoggia (BO)
Italy
Telephone +39 051 835611
Email info-IT@deublin.com
Diamond Roltran
59 Porter RoadLittleton, MA 01460
United States
Telephone +1 978 679 3125
Email info-us@deublin.com
Contact details as published by HOERBIGER Group, checked 2026-10-30. Specify Motion is not affiliated with HOERBIGER Group.
Deublin product lines
| Coolant rotary unions | Through-spindle coolant unions for machine tools, including 1117 and 1109 |
|---|---|
| Multi-passage rotary unions | 2600 series and 1379, up to 8 passages |
| Air, water and thermal oil unions | Rotary unions for general and process media |
| Steam joints | Steam and condensate joints such as Type C, with siphons |
| Slip rings | Through-bore, integrated and custom slip rings |
| Steam and condensate systems | Drainage and siphon systems for drying cylinders |
Who Deublin is
Deublin is an American manufacturer of rotary unions, the devices that carry a fluid (coolant, air, water, steam, thermal oil or hydraulic oil) from a stationary supply into a rotating shaft. It also makes slip rings, and increasingly combines the two in integrated assemblies. Deublin describes itself as a global leader in rotary union and slip ring technology and has been part of the HOERBIGER Group since 2019.
Machine tool builders know Deublin best for through-spindle coolant unions running at very high spindle speeds; engineers working with heated rolls and drying cylinders know it for steam joints and siphon systems on drying cylinders.
History and ownership
Deublin’s history page sets out its development:
- 1945: Luke Deubler and Dick Linn found the company; its first product is a rotary union with balanced mechanical seals. Linn sells his shares a few years later, leaving Deubler as sole owner.
- 1969: Deublin GmbH is set up in Germany, followed by Deublin Ltd. in England (1972) and Nippon Deublin in Japan (1977).
- 1989: Deublin acquires SINT in Italy, a steam joint and siphon systems company.
- 1992: the company moves into a 120,000 sq ft world headquarters in Waukegan, Illinois.
- 1993: Luke Deubler dies and his son Donald L. Deubler becomes chairman.
- 2019: the HOERBIGER Group, a Swiss-headquartered holding company, acquires Deublin, ending 74 years as a family-owned company.
Deublin has also bought Gardner Systems (Wisconsin), Diamond-Roltran, the Brazilian Jupiter rotary union brand and select LTN Servotechnik slip ring models. It now operates 13 entities worldwide.
Product portfolio
Deublin publishes few numeric ratings on its web pages, so our series records capture the figures it does give:
- 1117 Series: a bearingless closed-seal coolant union for machine tool spindles running from 10,000 rpm up to 50,000 rpm.
- 1109 Series: a coolant union with Pop-Off sealing, which can run dry without media pressure, in rotor-mounted and bore-mounted versions.
- 2600 multi-passage series: unions with balanced mechanical seals carrying 2 to 8 separate media, such as coolant, dry air, cooling oil and hydraulic oil, for rotary tables and spindles; the 2606 is rated at 1,000+ rpm.
- Type C steam joints: ferrous steam joints for 10 bar and up to 406 °F (about 208 °C), used with stationary or rotating siphons.
- Through-bore slip rings: power rings with 35, 60 and 76 mm inner passages and optional carbon graphite brushes, signal and data rings with 1 in, 2 in and up to 300 mm bores, and 82 mm power-and-signal and precious-metal designs.
Deublin also makes air, water and thermal oil unions, integrated and custom slip rings, and complete steam and condensate systems.
Technologies and standards
Deublin’s named sealing technologies include balanced mechanical seals, Pop-Off seals that lift off when there is no media pressure (so the union can run dry), AutoSense seals that adjust to the medium, and SpindleShield protection for machine tool spindles. Its multi-passage unions keep media separate without cross-contamination. For a rotary union, the figures to agree with any supplier are media, pressure, speed, temperature, number of passages, port sizes, and whether the union may run dry. See our rotary union page and slip rings for mixers and process plant.
Industries served
Deublin’s product pages point mainly to machine tools (through-spindle coolant, rotary tables and clamping) and to heated and drying cylinders served by its steam joints and siphon systems, and its home page links a dedicated machine tools industry page. Its slip rings and integrated slip ring and union assemblies extend that to packaging, converting and other rotary machinery. See slip rings for packaging.
Points to check when comparing Deublin rotary unions
Rotary unions fail mainly at the seal faces, so the questions that matter are about the seal: can it run dry, what happens when coolant pressure is removed, and how it copes with minimum quantity lubrication or air. Check the maximum speed against your spindle’s real top speed, not its nominal rating, and confirm pressure and temperature for the actual medium. For multi-passage unions, agree which passages may run at the same time and at what pressures. For steam joints, the siphon type (stationary or rotating) is as important as the joint itself.
Global and UK presence
Deublin lists offices across the Americas, Europe and Asia, including the USA, Brazil, Germany, Austria, France, Italy, Poland, Spain, the UK, Singapore, South Korea, Japan and China. Deublin UK is at 6 Sopwith Park, Royce Close, West Portway, Andover SP10 3TS (+44 1264 333355, info-uk@deublin.com). The website also has a distributor locator.
What to send when specifying a Deublin rotary union or slip ring
For a union: media for each passage, pressure, flow, speed, temperature, whether it may run dry, mounting (rotor- or bore-mounted), thread or port sizes and any drawbar travel. For a slip ring: circuits with current and voltage, data needs, bore, speed and environment. For a replacement, quote the Deublin part number.
Specify Motion is independent of Deublin. Our engineers can help source Deublin products or propose equivalents from our supply network on published figures; see find a replacement or the slip rings hub.
Deublin history: key dates
- 1945Luke Deubler and Dick Linn found Deublin; first product a rotary union with balanced mechanical seals
- 1969Deublin GmbH established in Germany
- 1972Deublin Ltd. established in England
- 1977Nippon Deublin established in Japan
- 1989Acquires SINT in Italy, a steam joint and siphon specialist
- 1992Moves into a 120,000 sq ft world headquarters in Waukegan, Illinois
- 2019Acquired by the HOERBIGER Group, ending 74 years of family ownership
Deublin slip rings
1117 Series
Bearingless closed-seal rotary union for through-spindle coolant on machine tool spindles, for speeds from 10,000 rpm up to 50,000 rpm.
1109 Series
Coolant rotary union with Deublin's Pop-Off sealing, which lets the union run dry without media pressure, offered in rotor-mounted and bore-mounted versions for through-spindle coolant.
2600 multi-passage series (2620–2650, 2606–2608)
Multi-passage rotary unions with balanced mechanical seals carrying 2 to 8 separate media, such as coolant, dry air, cooling oil and hydraulic oil, for machine tool rotary tables and spindles; the 2606 is rated at 1,000+ rpm.
Type C steam joints
Ferrous steam joint for elevated steam pressures of 10 bar and temperatures up to 406 °F (about 208 °C), used with stationary or rotating siphons on drying cylinders.
Through-bore slip rings
Through-bore slip rings for power (35, 60 and 76 mm inner passages, carbon graphite brushes available) and for signals and digital communication (1 in and 2 in bores, rugged and 300 mm through-bore units), plus 82 mm power-and-signal and precious-metal versions.
Engineer support
Ask about Deublin parts or equivalents
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How it works
From enquiry to delivery
Send a part number or describe the application. Our engineers take it from there: the right product, a clear quotation, and delivery and support arranged.
- 01Tell us what you needSend a part number, or configure the application, quantities and timing.
- 02An engineer reviews itWe check the specification and find the original part, a checked equivalent or a complete axis.
- 03Receive your quotationProducts, pricing, lead time and compatibility notes in one reply.
- 04Order and deliveryWhen you are happy, the order is placed and delivery and after-sales support are arranged.