
Steel construction, piping, plant engineering and conveyor technology – fabrication and installation certified to EN 1090 and AD 2000

Knoke-Industrie-Montagen GmbH
SalzgitterNew on Amplifa
About Knoke-Industrie-Montagen GmbH
Knoke-Industrie-Montagen GmbH is a steel construction and plant engineering company based in Salzgitter, specialised in industrial installations. Founded in 1980, the company fabricates steel structures for structural steelwork, steel composite and hall construction, vessels as well as steel tank and hydraulic systems. Its service portfolio also includes piping construction with high- and low-pressure lines, plant engineering including automation integration, and the planning and implementation of conveyor systems. Fabrication is carried out on NC-controlled machining systems; over 2,000 tonnes of steel are processed annually on more than 1,200 m² of production floor space. In addition, the company performs maintenance, servicing and repair work on large-scale installations as well as the installation of insulated wall panels and trapezoidal sheet metal. Customers include companies from the steel, sugar and energy industries, mechanical and turbine engineering as well as research. Since 2022, Knoke has been part of the Hamburg-based HPS Group.
- Site
- Salzgitter
- Processes
- Steel construction (structural steelwork, steel composite construction, steel hall construction,, Piping construction (planning and realisation of piping systems, high-pressure and low-pressure, Plant engineering (planning and implementation of production plants, automation integration,, Conveyor technology (planning and implementation of conveyor systems, automation solutions), Tank and hydraulic system construction, Installation of insulated wall panels and trapezoidal sheet metal on industrial buildings, Repair work on large-scale installations, Vessel construction
- Materials
- Steel, Welding, NC machining
- Certificates
- EN 1090-1 (FPC – factory production control), EN 1090-2 (welding certificate, EXC3), AD 2000-HP0 (pressure equipment, DGR/2014/6/EU), AD 2000-HP 100 R, DIN 18800 Class E (manufacturer qualification welding technology), Certified specialist company under § 62 AwSV (WHG, water-polluting substances), Welding procedure qualifications DIN EN ISO 15614-1, Welder qualifications DIN EN ISO 9606-1, Procedure qualification DIN EN ISO 14555 (arc stud welding), EN 1090-1 (FPC), EN 1090-2 EXC3, AD 2000-HP0, DIN 18800 Class E, Certified specialist company § 62 AwSV, DIN EN ISO 15614-1, DIN EN ISO 9606-1, DIN EN ISO 14555
- Founded
- 1980
- Employees
- 50
- Industries
- Steel industry, Metal industry, Sugar industry, Energy and plant engineering, Mechanical engineering, Turbine engineering
- 01
Planning and structural calculations
- 02
NC-controlled machining of steel
- 03
Welding (construction, piping, vessels)
- 04
Installation
- 05
Maintenance and servicing
Materials and Processes
Steel
Main material for steel construction, piping, vessels and plant components; over 2,000 t processed per year.
Welding
Welding procedures qualified to DIN EN ISO 15614-1 and welders to DIN EN ISO 9606-1, including arc stud welding to DIN EN ISO 14555.
NC machining
NC-controlled machining systems for cost-effective, precise and dimensionally accurate fabrication.
Locations

Salzgitter
DEHeadquarters, production and installation
- Materials
- Steel
- NC-controlled machining systems
- Crane system
- Machines of the Kaltenbach Group
Components and Services



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Steel construction (structural steelwork, steel composite construction, steel hall construction,Installation | – | – | – | – | Steel |
| Piping construction (planning and realisation of piping systems, high-pressure and low-pressureInstallation | – | – | – | – | Steel |
| Plant engineering (planning and implementation of production plants, automation integration,Installation | – | – | – | – | – |
| Conveyor technology (planning and implementation of conveyor systems, automation solutions)Installation | – | – | – | – | – |
| Tank and hydraulic system constructionInstallation | – | – | – | – | Steel |
| Installation of insulated wall panels and trapezoidal sheet metal on industrial buildingsInstallation | – | – | – | – | Steel |
| Repair work on large-scale installationsInstallation | – | – | – | – | – |
| Vessel constructionInstallation | – | – | – | – | Steel |
| NC-controlled machining of steel (machining systems)Machining | – | – | – | – | Steel |
| Arc stud welding (procedure qualification to DIN EN ISO 14555)Joining | – | – | – | – | Steel |
| Welding of pressure vessels and pressure-bearing pipelines (per DGRL 2014/68/EU, AD 2000-HP0/HPJoining | – | – | – | – | Steel |
| Structural calculations and individual planningEngineering | – | – | – | – | – |
| Maintenance, repair and servicing of structures, piping and plantsInstallation | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| NC-controlled machining systems | – | – | – | – | Salzgitter-Lebenstedt |
Additional services
Reference customers
Quality and Approvals
Fabrication is carried out under factory production control (FPC) with approvals for steel construction to EN 1090-1/-2 EXC3 and for pressure vessels to AD 2000-HP0/HP 100 R; welding procedures and welders are qualified to DIN EN ISO 15614-1 and 9606-1 respectively.
| Evidence | Salzgitter |
|---|---|
| EN 1090-1 (FPC) | |
| EN 1090-2 EXC3 | |
| AD 2000-HP0 | |
| AD 2000-HP 100 R | |
| DIN 18800 Class E | |
| Certified specialist company § 62 AwSV | |
| DIN EN ISO 15614-1 | |
| DIN EN ISO 9606-1 | |
| DIN EN ISO 14555 |
Company History
- 1980
Founding of the company Karl-Heinz Knoke Industrie-Montagen by Karl-Heinz Knoke in Nörten-Hardenberg.
- 1988
Renamed Knoke-Industrie-Montagen GmbH.
- 1992
Opening of the Salzgitter-Lebenstedt branch; today more than 50 employees, over 1,200 m² of production floor space and over 2,000 t of steel processing per year.
- 2022
Knoke Industrie-Montagen becomes part of the HPS Group (one source states 2023).