
Development and manufacturing of laboratory temperature control units, thermostats and temperature control systems for research and industry
JULABO GmbH
Seelbach (headquarters, R&D, manufacturing) · Lahr (production, logistics) · Brand-Erbisdorf/Freiberg (GAF – automation) · Milan · Allentown, PA · Boven-Leeuwen · Stamford · Colmar · Singapore · OsakaNew on Amplifa
Temperature control technology from a single source
JULABO GmbH, based in Seelbach in the Black Forest, is a manufacturer of temperature control units for research, industry and science. Founded in 1967 by Gerhard Juchheim, the owner-managed family business develops and manufactures refrigerated circulators (-90 to +200 °C), heating circulators (+20 to +300 °C), high-dynamic temperature control systems (-93 to +400 °C), recirculating coolers, water baths, shaking water baths, as well as products for special applications such as calibration baths and stress test thermostats. At its headquarters in Seelbach, all services are provided from a single source: from the initial idea through electronics development and design to the finished unit – as a custom solution or a series product. Since 2025, series production of smaller temperature control units, including a logistics center, has taken place at the Lahr site. The subsidiary GAF in Brand-Erbisdorf adds expertise in electrical measurement and control technology as well as automation. Customers include the automotive, chemical and pharmaceutical, semiconductor, food and aerospace industries, as well as research institutions.
- Site
- Seelbach
- Processes
- Refrigerated circulators, Heating circulators, High-dynamic temperature control systems, Recirculating coolers, Water baths, Shaking water baths, Immersion coolers, Laboratory temperature controllers
- Materials
- Refrigerants (natural and synthetic), Natural refrigerants, Synthetic refrigerants, Heat transfer fluids
- Certificates
- ISO 9001 (DIN ISO 9001), ISO 14001 (DIN ISO 14001), ISO 9001, ISO 14001
- Founded
- 1967
- Employees
- > 400 (worldwide)
- Industries
- Automotive industry, Chemical/Pharmaceutical, Semiconductor and electronics industry, Aerospace, Food industry, Biotechnology
- 01
Consulting & project planning
- 02
Research & development
- 03
Electronics development & design
- 04
Manufacturing & assembly
- 05
Testing (100 % final inspection)
- 06
Sales & commissioning
- 07
Maintenance, repair & leak testing
Temperature control media and refrigerants
Natural refrigerants
Used in refrigerated circulators and recirculating coolers for environmentally conscious cooling, e.g. in the 450F series.
Synthetic refrigerants
As an alternative to natural refrigerants in refrigeration units, depending on customer requirements.
Heat transfer fluids
Transfer medium for external temperature control tasks in thermostats and high-dynamic temperature control systems.
Temperature control units





Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Refrigerated circulatorsEngineering | – | – | – | – | Refrigerants (natural or synthetic), Heat transfer fluids |
| Heating circulatorsEngineering | – | – | – | – | Heat transfer fluids |
| High-dynamic temperature control systemsEngineering | – | – | – | – | Heat transfer fluids |
| Recirculating coolersEngineering | – | – | – | – | Refrigerants (natural or synthetic) |
| Water bathsEngineering | – | – | – | – | Water |
| Shaking water bathsEngineering | – | – | – | – | Water |
| Immersion coolersEngineering | – | – | – | – | Refrigerants |
| Laboratory temperature controllersEngineering | – | – | – | – | – |
| Stress test heating/refrigerated thermostatsEngineering | – | – | – | – | – |
| Calibration baths (calibration)Testing | – | – | – | – | – |
| Custom unit manufacturing / custom temperature control solutionsEngineering | – | – | – | – | – |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Refrigerated circulator | JULABO CORIO CD-450F | – | – | 2022 | – |
| Refrigerated circulator | JULABO CORIO CP-450F | – | – | 2022 | – |
| Refrigerated circulator | JULABO DYNEO DD-450F | – | – | 2022 | – |
| Refrigerated circulator | JULABO MAGIO MS-450F | – | – | 2022 | – |
| Recirculating cooler | JULABO 450F | – | Cooling capacity up to 450 watts | 2022 | – |
| Refrigerated/Heating circulator | JULABO CORIO CD-1000F | – | -40 to +150 °C | 2019 | – |
| Refrigerated/Heating circulator | JULABO CORIO CD-1001F | – | -38 to 100 °C | 2019 | – |
| Recirculating Cooler | JULABO VALEGRO 250 | – | – | 2026 | – |
| Compact Recirculating Cooler | JULABO F250 | – | – | – | – |
| Shaking water bath | JULABO | – | Shaking frequency 20 to 200 rpm | – | – |
Additional services
Reference customers
Quality
JULABO is certified to DIN ISO 9001 and DIN ISO 14001. Functionality is ensured through numerous tests in all production phases as well as a 100 % final inspection.
| Evidence | Seelbach |
|---|---|
| ISO 9001 | |
| ISO 14001 |