Deublin

Deublin contact details

Deublin USA

2050 Norman Drive
Waukegan, 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 Portway
Andover SP10 3TS
United Kingdom

Telephone +44 1264 333355

Email info-uk@deublin.com

Web deublin.com/en/worldwide-locations

Deublin Germany

Florenz-Allee 1
55129 Mainz
Germany

Telephone +49 6131 4998 0

Email info-DE@deublin.com

Web deublin.com/en/worldwide-locations

Deublin Italy

Via Guido Rossa, 9 – Località Monteveglio
40053 Valsamoggia (BO)
Italy

Telephone +39 051 835611

Email info-IT@deublin.com

Web deublin.com/en/worldwide-locations

Diamond Roltran

59 Porter Road
Littleton, MA 01460
United States

Telephone +1 978 679 3125

Email info-us@deublin.com

Web deublin.com/en/worldwide-locations

Show Deublin headquarters on the map Open in Google Maps →

Contact details as published by HOERBIGER Group, checked 2026-10-30. Specify Motion is not affiliated with HOERBIGER Group.

Deublin product lines

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

1. 1945Luke Deubler and Dick Linn found Deublin; first product a rotary union with balanced mechanical seals
2. 1969Deublin GmbH established in Germany
3. 1972Deublin Ltd. established in England
4. 1977Nippon Deublin established in Japan
5. 1989Acquires SINT in Italy, a steam joint and siphon specialist
6. 1992Moves into a 120,000 sq ft world headquarters in Waukegan, Illinois
7. 2019Acquired by the HOERBIGER Group, ending 74 years of family ownership

Deublin slip rings

Rotary unions and hybrid joints

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.

Rotary unions and hybrid joints

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.

Rotary unions and hybrid joints

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.

Rotary unions and hybrid joints

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

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.

Frequently asked questions

What is Deublin's website?

Deublin's official website is deublin.com, available in eleven languages. It covers rotary unions for air, coolant, steam and hot oil, thermal oil, water and multiple media, through-bore and integrated slip rings, steam and condensate systems, a product selector, company history, worldwide locations and a distributor locator.

What is Deublin's phone number in the UK?

Deublin UK publishes +44 1264 333355 as its telephone number, +44 1264 333304 as its fax and info-uk@deublin.com as its email. In the USA, Deublin's Waukegan, Illinois site is on +1 847 689 8600 and info-us@deublin.com.

Where is Deublin's headquarters?

Deublin moved into a 120,000 sq ft world headquarters in Waukegan, Illinois in 1992. Its locations page lists Deublin USA at 2050 Norman Drive, Waukegan, IL 60085-6747. In Europe, Deublin Germany is at Florenz-Allee 1, 55129 Mainz.

Who owns Deublin?

Deublin has been owned by the HOERBIGER Group, a Swiss-headquartered holding company, since 2019. Before that it was family owned for 74 years, from its founding in 1945 by Luke Deubler and Dick Linn; Deubler later became sole owner and his son Donald took over as chairman in 1993.

Does Deublin have a UK office?

Yes. Deublin UK is at 6 Sopwith Park, Royce Close, West Portway, Andover SP10 3TS, Hampshire. Deublin's history page dates its English company, Deublin Ltd., to 1972. UK engineers can contact the Andover office directly or use the distributor locator.

What does Deublin make?

Deublin makes rotary unions for machine tool coolant, air, water, steam, thermal oil and multiple media, steam joints and siphon systems for drying cylinders, and through-bore, integrated and custom slip rings. Diamond Roltran and Jupiter are Deublin brands.

Sources

1. Deublin: Our history
2. Deublin: Worldwide locations
3. Deublin: Company
4. Deublin: Home page
5. Deublin: Coolant rotary unions
6. Deublin: Multimedia rotary unions
7. Deublin: Steam and hot oil rotary unions
8. Deublin: Through-bore slip rings

Figures are summarised from the sources above and from manufacturers' published data on the date shown. Always confirm against the current datasheet for your exact part.