Services
Cryogenics
Maintenance, repair, troubleshooting, commissioning and optimisation of cryogenic plants.
RAK supports operators of cryogenic plants with maintenance, repair, troubleshooting, commissioning and optimisation. Our focus is on existing installations in industry and research – from systematic fault analysis through to restoring stable plant operation.

Service & Maintenance
- preventive and corrective maintenance
- inspections and condition assessments
- filter and adsorption materials
- seals and wear parts
- inspection of piping and components
- endoscopy and technical documentation

Troubleshooting
- analysis of performance losses and plant faults
- evaluation of operating data and trends
- sensors and actuators
- rotating equipment
- vessels and heat exchangers
- control and automation components
- repair concept and recommissioning

Commissioning & Recommissioning
- pre-commissioning and commissioning
- loop checks and functional tests
- testing of hardwired safety functions
- recording and documentation of operating data
- adjustment of operating parameters
- performance tests and acceptance
Retrofit, Upgrade & Migration
RAK supports the retrofit, upgrade and migration of existing control and operator systems for cryogenic plants. This includes replacement and retrofit of control PCs, modernisation of HMI and visualisation systems, and migration of existing PLC and automation systems.

Helium Liquefiers & Refrigeration Systems
RAK supports operators of helium liquefiers and helium refrigeration systems with maintenance, troubleshooting, repair, spare parts supply, modernisation and recommissioning. Our hands-on experience includes Linde systems from the L70/LR70, L140/LR140, L280/LR280, L1410/LR1430 and L1610/LR1630 series as well as TCF10, TCF20, TCF50, TCF100 and TCF200. For Air Liquide Advanced Technologies (ALAT), this includes HELIAL SL, HELIAL 2000, HELIAL ML and HELIAL LL. RAK also supports large-scale helium refrigeration and liquefaction systems and customised large cryogenic plants from both manufacturers.
Spare parts for these plants- Linde
- L70/LR70 · L140/LR140 · L280/LR280 · L1410/LR1430 · L1610/LR1630
- TCF10 · TCF20 · TCF50 · TCF100 · TCF200
- Air Liquide Advanced Technologies (ALAT)
- HELIAL SL · HELIAL 2000 · HELIAL ML · HELIAL LL
- Large-scale plants
- Large-scale helium refrigeration and liquefaction systems and customised large cryogenic plants from both manufacturers
Training for your operating staff? Technical training and qualification programmes are offered by our independent academy RAK Systemtraining.
RAK Systemtraining ↗Request Service
Briefly describe your plant and request. We will get back to you with an initial technical assessment.