Service, Maintenance & Spare Parts

In order to ensure maximum availability, productivity and safety for your high-temperature ovens and furnaces, we talk to you to define the right maintenance package for your needs – ranging from spare parts delivery and regular inspections to preventive plant maintenance. We aim to support your day-to-day work while extending the service life of your plant.

Service Team in Böblingen
Service Team in Böblingen

Service Team in Bovenden
Service Team in Bovenden


General Contact

General Contact

+49 551 820 830 - 850

Hotline 24/7
+49 551 820 830 - 840

Spare Part Services

Spare parts from Onejoon: Precise, safe and reliable!

The benefits

  • Original spare parts from the manufacturer
  • Fair prices
  • Quick and easy process from order to delivery
  • Technical contact persons


Tobias Osol

Tobias Osol

Team Leader Spare Parts

+49 551 820 830 - 716

Modification, Retrofit, Inspection and Maintenance Services:

Modification of Heat Treatment Plants: complete and detailed plant modification on individual customer request.

Our interdisciplinary team of supervisors, mechanical and electrical engineers and mechanics can design and implement major modifications of your complete plant.

Our Team is specialiced in

  • implementation of heat recovery systems
  • throughput increase and optimization
  • complete exchange of refractory and insulation in order to optimize energy losses
  • upgrade of control systems and software
  • plant safety upgrades and safety modifications in order to comply with recent safety norms
  • optimization of plant operation
  • and many more ...

Retrofit Services: improve and optimize your plant and your furnaces with state-of-the art equipment and materials

  • complete exchange of muffles
  • repair and exchange of refractory and insulation
  • exchange of kiln, furnace and ovencasings
  • replacement of conveyor technique: e.g. roller conveyors, chain conveyors, lifting stations
  • upgrade and exchange of sluices and door systems
  • and many more ...

Maintenance and inspection: preventive maintenance strategy in accordance with a defined schedule, including repairs and a maintenance report detailing all findings. This service is available for Onejoon (Eisenmann and Ruhstrat) and third-party facilities.

Annual oven inspections by specialists: assessment of the current condition of your plants to safeguard availability. Inspections can be performed during ongoing production.

Safety inspections: we perform mandatory safety inspections of your plants. You not only benefit from minimal downtimes but also from safe and uninterrupted production operations.


Stefan Kreike

Stefan Kreike

Team Leader Service Department

+49 551 820 830 - 709

René Stevanovic Zschach

René Stevanovic Zschach

Manager Projects Service & Site Managment Electric/Software

+49 7031 78 33 19


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