
Plant construction, manufacturing and maintenance for power plants and waste incineration plants – all from a single source.

P.A.T. Holding GmbH
Kirchheim u. Teck · WillichNew on Amplifa
About P.A.T. Holding
Since 2021, P.A.T. Holding GmbH has bundled the competencies of P.A.T. Prozess-Anlagen-Technik GmbH and P.A.T. Process-Automations-Technology GmbH. The group of companies specialises in power plants, SRF power plants and waste incineration plants and offers energy providers services for new construction and conversion as well as refurbishment: planning, engineering, manufacturing, assembly, maintenance and servicing. At its own works in Kirchheim unter Teck with 1,000 m² of production space, plant components such as vessels, filters, flue gas ducts and bypass ducts are manufactured from steel and stainless steel, even without as-built drawings. The service portfolio includes welding work (MIG/MAG/TIG/electrode), rolling and bending work, as-built measurements using on-site 3-D scanning, technical insulation as well as process automation and E&I (EMSR) technology. Reference projects include, among others, the new construction of flue gas cleaning via dry sorption with hydrated lime at the power plant of Steinbeis Energie Papenburg GmbH, realised in 2025 in 6.5 weeks.
- Site
- Kirchheim u. Teck
- Processes
- Steel construction / manufacturing of plant components, Welding work (MIG/MAG/TIG/electrode), Rolling and bending work, Manufacturing of vessels, filters and flue gas ducts, 3-D scanning / on-site as-built measurement, Pre-fabrication for plant construction (e.g. flue gas cleaning), Planning, Engineering
- Materials
- S235 JR, 1.4835, 1.4404, Stainless steel, Hydrated lime, S235JR, Hydrated lime (dry sorption)
- Founded
- 2011
- Industries
- Power plants, SRF power plants, Waste incineration plants, Process engineering industry, Energy providers, process engineering industry
- 01
Planning
- 02
Engineering
- 03
3-D scanning / as-built measurement
- 04
Manufacturing (rolling, bending, welding)
- 05
Assembly
- 06
Commissioning / E&I (EMSR) technology
- 07
Maintenance & servicing
Materials & Processes
S235JR
Structural steel for steel constructions such as bypass ducts, incl. single-coat anti-corrosion paint.
1.4835
Heat-resistant stainless steel for components in the hot gas area, e.g. dip tube and hot gas cyclone.
1.4404
Corrosion-resistant stainless steel for vessels such as feed water tanks.
Stainless steel
Material for flue gas cleaning plants and exhaust gas treatment components.
Hydrated lime (dry sorption)
Sorption agent for flue gas cleaning processes in power plants and waste incineration plants.
Locations

Kirchheim u. Teck
DEHeadquarters, pre-fabrication and manufacturing
- Materials
- Steel (S235JR), stainless steel (1.4835, 1.4404)
- Production hall, 1,000 m²
- 3-D scanning equipment
Willich
DEBranch office of P.A.T. Process-Automations-Technology GmbH (Hanns-Martin-Schleyer Str. 26)
Components & Reference Projects




Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Steel construction / manufacturing of plant componentsJoining | – | – | – | – | S235 JR, 1.4835, 1.4404, Stainless steel |
| Welding work (MIG/MAG/TIG/electrode)Joining | – | – | – | – | Steel, Stainless steel |
| Rolling and bending workForming | – | – | – | – | Steel, Stainless steel |
| Manufacturing of vessels, filters and flue gas ductsJoining | – | – | – | – | Steel, Stainless steel |
| 3-D scanning / on-site as-built measurementInspection | – | – | – | – | – |
| Pre-fabrication for plant construction (e.g. flue gas cleaning)Assembly | – | – | – | – | Steel |
| PlanningEngineering | – | – | – | – | – |
| EngineeringEngineering | – | – | – | – | – |
| Assembly of plants and unitsAssembly | – | – | – | – | – |
| Maintenance & servicing (trough chain conveyors, screw conveyors, wet bottom ash de-slakers,Assembly | – | – | – | – | – |
| Flue gas cleaning (dry sorption with hydrated lime, new construction/refurbishment)Engineering | – | – | – | – | Hydrated lime, Stainless steel |
| Technical insulationSurface | – | – | – | – | – |
| Process automation / E&I (EMSR) technologyEngineering | – | – | – | – | – |
| Conveying technology (trough chain conveyors, trough screw conveyors, rotary valves, pneumaticAssembly | – | – | – | – | Steel |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3-D scanning equipment | – | – | – | – | Kirchheim u. Teck |
| Production hall | – | – | 1000 m² | – | Kirchheim u. Teck |
Additional services
Reference customers
History
- 2011
Foundation of P.A.T. GmbH by Herbert Appl and Jan Volgmann.
- 2021
Herbert Appl retired; Robert Krestka became commercial managing director; foundation of P.A.T. Holding.
- 2025
New construction of a flue gas cleaning system (dry sorption, hydrated lime) at the Steinbeis Energie Papenburg power plant in 6.5 weeks, including dismantling, scaffolding, E&I (EMSR) technology and insulation.