
Tube bending, plant and special construction as well as evaporator shortening for refrigeration technology

JUNG Apparatebau GbR
56357 Dornholzhausen · 56357 GeisigNew on Amplifa
About JUNG Apparatebau
JUNG Apparatebau GbR is a company founded in 2014 in Dornholzhausen (Westerwald) that manufactures refrigeration components and systems. Its range of services includes tube fabrication to drawing or customer specification, plant and special construction as well as the shortening of evaporators. In plant construction, products include built-in cooling units for display cabinet construction, grain and granulate dryers, gas coolers, liquid coolers, medical devices, condensing units and complete condensing sets. In tube fabrication, tube assemblies are cut, deburred, bent, brazed and pressure-tested; production is carried out as one-offs or in series. All assemblies are brazed under forming gas, sealed airtight and tested with nitrogen 4.0. Customers include wholesalers, refrigeration specialists and manufacturers such as TEKO Gesellschaft für Kältetechnik mbH.
- Site
- Dornholzhausen
- Processes
- Tube fabrication (cutting, deburring, bending, brazing, pressure testing up to 60 bar), Brazing under forming gas, Pressure testing up to 60 bar with nitrogen 4.0, Plant construction / special construction (built-in cooling units for display cabinet construction,, Leak testing with leak detector (during refrigerant filling), Evaporator shortening (cutting under pressure, deburring of tube ends and bends, joining, brazing, Filling/delivering with nitrogen 4.0 (residual pressure 2 bar) or cooling liquid, Tube fabrication (tube assemblies to drawing/customer specification: cutting, deburring, bending,
- Materials
- Copper (tubes/evaporators, copper chips mentioned), Copper
- Certificates
- Pressure testing up to 60 bar (nitrogen 4.0), Leak testing with leak detector, ISO 9001
- Founded
- 2014 (Apri
- Industries
- Refrigeration technology, Display cabinet construction, Wholesale (fittings), Refrigeration specialist companies, Medical technology, Food/grain processing
- 01
Consulting and project planning
- 02
Tube cutting and deburring
- 03
Tube bending
- 04
Joining under forming gas (brazing)
- 05
Pressure testing with nitrogen 4.0
- 06
Leak testing during refrigerant filling
- 07
Delivery with residual nitrogen pressure of 2 bar or cooling liquid fill
Materials & Processes
Copper
Material for tube assemblies and evaporators in refrigeration technology; processed by cutting, bending and brazing under forming gas.
Sites
Dornholzhausen
DEManufacturing and administration (Ring-Str. 9)
- Lot size
- One-offs to series production
- Materials
- Copper
Geisig
DEContact site (Römer-Straße 12, specification of the www version)
Components & Products


Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Tube fabrication (cutting, deburring, bending, brazing, pressure testing up to 60 bar)Joining | – | – | – | One-offs – Series production | Copper |
| Brazing under forming gasJoining | – | – | – | – | Copper |
| Pressure testing up to 60 bar with nitrogen 4.0Testing | – | – | – | – | – |
| Plant construction / special construction (built-in cooling units for display cabinet construction,Assembly | – | – | – | – | Copper |
| Leak testing with leak detector (during refrigerant filling)Testing | – | – | – | – | – |
| Evaporator shortening (cutting under pressure, deburring of tube ends and bends, joining, brazingJoining | – | – | – | – | Copper |
| Filling/delivering with nitrogen 4.0 (residual pressure 2 bar) or cooling liquidSurface | – | – | – | – | – |
Additional services
Reference customers
Quality
Brazed assemblies are sealed airtight and pressurized with nitrogen 4.0 up to 60 bar; during refrigerant filling, all brazed joints are checked with a leak detector. Delivery takes place with a residual nitrogen pressure of 2 bar or filled with cooling liquid.
| Evidence | Dornholzhausen |
|---|---|
| Pressure testing up to 60 bar (nitrogen 4.0) | |
| Leak testing with leak detector | |
| ISO 9001 |
History
- 2014
Foundation of JUNG Apparatebau GbR in April; cooperation with a mail-order wholesaler in the fittings sector since 04/2014
- 2018
Manufacturing of small refrigeration systems for TEKO Gesellschaft für Kältetechnik mbH since 01/2018
- 2019
Evaporator shortening in the product range since 03/2019