Specialist in power plant technology, welding technology, valve and conveying technology including the manufacture of tanks and spare parts
HOLL Systemtechnik GmbH
Diez · Frimmersdorf Power PlantNew on Amplifa
About HOLL Systemtechnik
HOLL Systemtechnik GmbH is a system service provider specialized in the energy and utility industry, based in Diez (Rhineland-Palatinate) with a workshop and assembly hall at the Frimmersdorf power plant. Its range of services includes power plant technology (among other things the manufacture of wet deslagger troughs, electrostatic precipitator spare parts, boiler work and re-tubing of steam generators), environmental technology such as flue gas desulfurization systems and double-walled pressure vessels, valve service as well as conveying technology with maintenance of large excavators, belt conveyors and ship unloaders in open-pit lignite mining. The core process is welding technology with the processes manual electrode (E-Hand), MAG/MIG, TIG (WIG) and oxy-fuel welding on steel and titanium, supplemented by induction annealing and magnetic particle testing (MP testing) with a yoke magnet. For assembly and overhaul work, mobile cranes, a Unimog crane arm and work platforms for construction site use are available. Customers come from power plant technology, open-pit lignite mining, environmental technology and refrigeration technology.
- Site
- Diez
- Processes
- Manual electrode welding (E-Hand), MAG/MIG welding, TIG welding (WIG), Oxy-fuel welding, Induction annealing, Manufacture of wet deslagger troughs, Manufacture of double-walled pressure vessels (welding), Valve service / reconditioning of valves
- Materials
- Titanium, Steel (high-pressure line), TIG welding (WIG), MAG/MIG welding, Manual electrode welding (E-Hand), Oxy-fuel welding, Induction annealing, Magnetic particle testing
- Industries
- Power plant technology, Open-pit lignite mining, Environmental technology, Refrigeration technology
- 01
Consulting / requirements capture
- 02
Manufacturing in workshop (welding, tank construction)
- 03
Heat treatment (induction annealing)
- 04
Testing (MP testing)
- 05
Assembly / repair at the customer's site
- 06
Service (valves)
Materials & Processes
TIG welding (WIG)
Manual welding process for high-pressure lines made of steel and titanium tube bundles, e.g. on boiler evaporator walls and absorbers.
MAG/MIG welding
Welding process for steel structures such as pressure vessels and power plant components.
Manual electrode welding (E-Hand)
Arc stick welding for repair and assembly work in power plant and plant engineering.
Oxy-fuel welding
Gas welding process for suitable applications in manufacturing and repair.
Induction annealing
Heat treatment, e.g. on TIG-welded high-pressure lines.
Magnetic particle testing
Material testing with a yoke magnet to ensure weld seam quality.
Sites
Diez
DEHead office / office
Frimmersdorf Power Plant
DEWorkshop and assembly hall
- Materials
- Steel, titanium
- Workshop
- Assembly hall
Components & Services
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manual electrode welding (E-Hand)Joining | – | – | – | – | Steel |
| MAG/MIG weldingJoining | – | – | – | – | Steel |
| TIG welding (WIG)Joining | – | – | – | – | High-pressure line (steel), Titanium (tube bundle) |
| Oxy-fuel weldingJoining | – | – | – | – | – |
| Induction annealingHeat treatment | – | – | – | – | Steel |
| Manufacture of wet deslagger troughsAssembly | – | – | – | – | Steel |
| Manufacture of double-walled pressure vessels (welding)Joining | – | – | – | – | Steel |
| Valve service / reconditioning of valvesAssembly | – | – | – | – | – |
| Welding of flanges on refrigeration valvesJoining | – | – | – | – | – |
| Power plant technology (repair, renewal, maintenance of boiler and power plant components)Assembly | – | – | – | – | Steel, Titanium |
| Environmental technology (flue gas desulfurization systems)Assembly | – | – | – | – | – |
| Conveying technology / maintenance of large excavators (ball race rehabilitation, bucket wheelAssembly | – | – | – | – | – |
| Heavy lifts in open-pit lignite miningAssembly | – | – | – | – | – |
| MP testing with yoke magnetTesting | – | – | – | – | Steel |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Mobile crane | – | – | – | – | – |
| Valve service vehicle | – | – | – | – | – |
| Unimog crane arm | – | – | – | – | – |
| Yoke magnet (MP testing) | – | – | – | – | – |
| Work platforms for construction site use | – | – | – | – | – |
| Workshop and assembly hall | – | – | – | – | Frimmersdorf Power Plant |
Additional services