Planning, manufacturing and service of industrial plants: piping construction, steel construction, special machinery, RetroFit and energy technology solutions.
Antrok Energie- und Anlagentechnik GmbH
34253 Lohfelden (Am Fieseler Werk 3+5)New on Amplifa
About Antrok
The Antrok Group, based in Lohfelden near Kassel, is a provider of energy and plant technology as well as services along industrial value chains. The company plans and implements industrial plants for mechanical process engineering, energy technology as well as utility and production technology – from gear oil, quenching oil and refrigeration systems to combined heating, power and cooling systems and emulsion and release agent systems. The portfolio also includes piping construction DN 15 to DN 2000 in pressure classes PN6 to PN160, steel construction with boilers, vessels, heat exchangers, silos and support structures, ventilation construction, special machinery construction as well as RetroFit of die-casting systems, deburring presses and impregnation systems. Manufacturing is carried out in steel, stainless steel and plastics; welding processes range from manual welding to fully mechanized orbital welding. The Energy and Plant Technology division (Antrok Energie- und Anlagentechnik GmbH) and InnoServe (Antrok InnoServe GmbH) work in an interlinked manner. Customers include Volkswagen, the Warsteiner Brewery, Städtische Werke Kassel, Smurfit Westrock and Solupharm; projects are also implemented worldwide as a service provider in piping construction.
- Site
- Lohfelden
- Processes
- Piping construction (high and low pressure, liquid, gaseous and solid media), Orbital welding (fully mechanized gas-shielded welding, 360 degrees around pipes), Welding processes: arc welding, manual welding, MAG welding, MAG welding with flux-cored wire, Steel construction (boilers, vessels, special vessels such as heat exchangers, economizers,, Vessel construction in the high-pressure range according to the Pressure Equipment Directive, Modular platform system (patented, weld-free), Ventilation construction (industrial extraction, exhaust/extraction hoods, high-performance fans), Plant construction (utility and production technology: gear oil, quenching oil, etc.)
- Materials
- S235JR, S355JR, P235GH, P265GH, 16 Mo3, 13 CrMo4-5, Stainless steel, PP
- Certificates
- DIN EN ISO 9001:2015, DIN EN 1090-1/-2 execution class EXC3, WHG specialist company (§ 62 AWSV), HP0 qualification under AD 2000 (ISO 3834-3), ISO 9001, EN 1090 (EXC3), HP0 under AD 2000 (ISO 3834-3)
- Employees
- 254
- Industries
- Automotive industry, Foundry technology, Food industry and brewing industry, Pharmaceutical industry, Energy supply / municipal utilities, Paper and packaging industry
- 01
Planning and engineering (3D laser scanning, CAD, simulation)
- 02
Steel construction and prefabrication
- 03
Piping construction
- 04
Assembly and installation
- 05
Commissioning
- 06
Maintenance, servicing and RetroFit
Materials & Processes
S235JR
Unalloyed structural steel for pipelines and steel structures.
S355JR
Higher-strength structural steel for load-bearing steel construction and pipeline structures.
P235GH
Heat-resistant pipe steel for steam and pressure systems.
P265GH
Heat-resistant pipe steel for higher-stressed boiler and pressure pipework.
16 Mo3
Molybdenum-alloyed heat-resistant steel for hot steam and high-temperature lines.
13 CrMo4-5
Chromium-molybdenum steel for pipelines subjected to high temperatures.
1.4301
Corrosion-resistant stainless steel for hygienic and aggressive media.
1.4576
Stainless steel for applications with increased corrosion requirements.
PP
Plastic piping for chemically stressed media.
PEHD
Plastic piping for corrosive and aggressive fluids.
PTFE
Plastic piping for extremely chemical-resistant applications.
Orbital welding
Fully mechanized 360-degree gas-shielded welding for reproducible weld quality on pipes.
Sites
Lohfelden
DEHeadquarters, manufacturing and engineering (Antrok Group)
- Materials
- Steel, stainless steel, plastics
- 3D laser scanning equipment
- Welding technology including orbital welding
- Service vehicles
Services & Projects
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Piping construction (high and low pressure, liquid, gaseous and solid media)Joining | – | – | – | – | S235JR, S355JR, P235GH, P265GH, 16 Mo3, 13 CrMo4-5, 1.4301, 1.4576, PP, PEHD, PTFT |
| Orbital welding (fully mechanized gas-shielded welding, 360 degrees around pipes)Joining | – | – | – | – | – |
| Welding processes: arc welding, manual welding, MAG welding, MAG welding with flux-cored wireJoining | – | – | – | – | Steel, Stainless steel |
| Steel construction (boilers, vessels, special vessels such as heat exchangers, economizers,Forming | – | – | – | – | Steel, Steel profiles, Stainless steel |
| Vessel construction in the high-pressure range according to the Pressure Equipment DirectiveJoining | – | – | – | – | Steel, Stainless steel |
| Modular platform system (patented, weld-free)Assembly | – | – | – | – | – |
| Ventilation construction (industrial extraction, exhaust/extraction hoods, high-performance fans)Assembly | – | – | – | – | – |
| Plant construction (utility and production technology: gear oil, quenching oil, etc.)Assembly | – | – | – | – | – |
| Plant construction mechanical process engineering (emulsion systems, release agent systems, specialAssembly | – | – | – | – | – |
| RetroFit in plant construction (upgrading/conversion of existing systems incl. portal, conveying,Engineering | – | – | – | – | – |
| RetroFit of die-casting systems (general overhaul: mechanics, hydraulics, die change,Engineering | – | – | – | – | – |
| RetroFit partial revision (disassembly, machining, reassembly of large components)Engineering | – | – | – | – | – |
| RetroFit of deburring pressesEngineering | – | – | – | – | – |
| Casting cell assembly including components and media linesAssembly | – | – | – | – | – |
| Machine inspection and measurement (3D measurement/laser scanning)Testing | – | – | – | – | – |
| Mold and die maintenance (maintenance/servicing of deburring fixtures, tools, molds)Assembly | – | – | – | – | – |
| Maintenance and servicing / equipment engineering (24/7 on-call service, diagnostics:Assembly | – | – | – | – | – |
| Special machinery construction (concept development, manufacturing, installation, commissioning)Engineering | – | – | – | – | – |
| Planning and engineering (3D laser scanning, specifications, feasibility studies,Engineering | – | – | – | – | – |
| Energy generation (electrification of heat processes, large/high-temperature heat pumps,Engineering | – | – | – | – | – |
| Energy supply (waste heat utilization, heat recovery, heat distribution, thermal storage)Engineering | – | – | – | – | – |
| Energy monitoring / Energy Efficiency Act (EnEfG) / CSRD data capture conceptsEngineering | – | – | – | – | – |
| Impregnation systems (operation/RetroFit, 80% higher component throughput after RetroFit)Surface | – | – | – | – | – |
| Pipes DN 15 to DN 2000, pressure classes PN6 to PN160Joining | – | – | – | – | S235JR, S355JR, P235GH, P265GH, 16 Mo3, 13 CrMo4-5, 1.4301, 1.4576, PP, PEHD, PTFT |
Additional services
Reference customers
Quality & Certification
Antrok is certified according to DIN EN ISO 9001:2015, DIN EN 1090-1/-2 (EXC3) and as a specialist company under the Water Resources Act (WHG, § 62 AWSV) and holds the HP0 qualification under AD 2000 (ISO 3834-3). Non-destructive material testing is carried out by certified in-house laboratories; welders are qualified according to DIN EN 287-1/2, AD-Merkblatt HP 3 and TRD 201.
| Evidence | Lohfelden |
|---|---|
| ISO 9001 | |
| EN 1090 (EXC3) | |
| WHG specialist company (§ 62 AWSV) | |
| HP0 under AD 2000 (ISO 3834-3) |
History
Over 30 years of market presence according to company statement