Metal fabrication, machining, combustion systems and special machinery from a single source since 1947
Siebers Maschinenbau und Energietechnik GmbH & Co. KG
Marsberg (Headquarters / Manufacturing)New on Amplifa
About Siebers
Siebers Maschinenbau und Energietechnik GmbH & Co. KG is a family-owned company based in Marsberg that has been delivering industrial solutions since 1947. Its portfolio covers metal fabrication and machining (CNC milling on 3- and 5-axis machining centers, turning, laser cutting, CNC press braking, welding), thermal technology with gas control skids according to DVGW G 491 and EN 746-T2, industrial burners and induction heating systems, as well as special machinery and plant engineering. The offering is complemented by electrical engineering, including electrical design (EPLAN), control cabinet construction and PLC programming (TIA Portal, STEP7), robot integration (Yaskawa) and services such as commissioning, maintenance, repair and retrofit. Production is carried out in structural steel, stainless steel (1.4301) and steels for high-temperature applications; floor treatments such as nitriding, heat treatment and galvanizing are carried out with external partners. The value chain is completed by an in-house wet paint shop, pickling and sandblasting. Customers come from the automotive industry, the thermal process industry, water treatment and contract manufacturing. All key processes — from metal fabrication and electrical engineering to gas technology — are performed in-house, enabling short lead times and a high level of vertical integration.
- Site
- Marsberg
- Processes
- CNC milling, Turning, Laser cutting, CNC press braking (edge bending), Welding / general metal fabrication, Pressure vessel construction, Piping construction, Pickling
- Materials
- Structural steel, Stainless steel, Steels for high-temperature applications, Gas control skid manufacturing, Gas technology standard manufacturing, Wet painting
- Certificates
- ISO 9001:2015, AD2000 HP0 (certified welding company for pressure vessels), DIN EN 1090 (steel construction)
- Founded
- 1947
- Industries
- Automotive industry, Water treatment, Thermal process industry, Contract manufacturing, Bakery machinery (historical)
- 01
Design/CAD (SolidWorks)
- 02
Electrical design (EPLAN)
- 03
Laser cutting
- 04
CNC milling and turning
- 05
CNC press braking
- 06
Welding / metal fabrication / pressure vessel construction
- 07
Surface treatment (pickling, sandblasting, painting)
- 08
Control cabinet construction, PLC programming, robotics
- 09
Assembly and commissioning
- 10
Maintenance, repair, retrofit
Materials and Processes
Structural steel
Base material for metal fabrication, laser cuts up to 20 mm and steel construction
Stainless steel
For laser cuts up to 12 mm and corrosion-resistant components, e.g. in water treatment
Steels for high-temperature applications
For components in thermal process plants and combustion technology
Gas control skid manufacturing
Design and manufacture of gas control skids for natural gas, LPG, hydrogen, fuel oil and special fuels
Gas technology standard manufacturing
Design and manufacture of gas control skids for thermal process plants
Wet painting
In-house paint shop for surface finishing of assemblies and structures
Locations
Marsberg
DEHeadquarters / Manufacturing
- Part weight / size
- Structural steel up to 20 mm sheet thickness e.g. possible
- Lot size
- Prototype construction and series production
- Materials
- Structural steel, stainless steel 1.4301, high-temperature steels
- 3-axis machining center
- 5-axis machining center
- Laser cutting machine
- CNC press brake
- Wet paint shop
- Welding system
- PLC programming environment
Components and Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC millingMachining | – | – | – | – | Structural steel, Stainless steel, Steels for high-temperature applications |
| TurningMachining | – | – | – | – | – |
| Laser cuttingMachining | – | – | – | – | Structural steel (up to 20 mm), Stainless steel 1.4301 (up to 12 mm) |
| CNC press braking (edge bending)Forming | – | 3 m | – | – | Material thickness up to approx. 15 mm |
| Welding / general metal fabricationJoining | – | – | – | – | Steels, Steels for high-temperature applications |
| Pressure vessel constructionWelding/Joining | – | – | – | – | Steel |
| Piping constructionJoining | – | – | – | – | – |
| PicklingSurface | – | – | – | – | – |
| SandblastingSurface | – | – | – | – | – |
| Painting (wet paint shop)Surface | – | – | – | – | – |
| Nitriding (external)Heat treatment | – | – | – | – | – |
| Heat treatment (external)Heat treatment | – | – | – | – | – |
| Galvanizing (external)Surface | – | – | – | – | – |
| Gas control skids (design and manufacture according to DVGW G 491 and EN 746-T2)Engineering | – | – | – | – | – |
| Combustion systems / burner systems (industrial burners, H2-ready)Engineering | – | – | – | – | – |
| Induction heating systems / machines for induction heatingSpecial machinery | – | – | – | – | – |
| Special machinery (conveying, winding and filling machines, assembly systems, testing machines)Special machinery | – | – | – | – | – |
| CAD design (SolidWorks) & engineeringEngineering | – | – | – | – | – |
| Electrical design (EPLAN), control cabinet construction, PLC programming (TIA Portal, STEP7,Electrical engineering | – | – | – | – | – |
| Robotics / robot integration (Yaskawa)Automation | – | – | – | – | – |
| Commissioning, maintenance, repair, retrofitService | – | – | – | – | – |
| Prototype construction & series productionManufacturing | – | – | – | – | – |
5 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3-axis machining center | – | – | 1.7 x 0.6 x 0.4 m | – | – |
| 5-axis machining center | – | – | 0.5 x 0.5 x 0.4 m | – | – |
| Laser cutting machine | – | – | Structural steel up to 20 mm, stainless steel (1.4301) up to 12 mm | – | – |
| CNC press brake | – | – | Bending length 3 m, material thickness up to approx. 15 mm | – | – |
| Wet paint shop | – | – | – | – | – |
Additional services
Quality and Certifications
Manufacturing is certified to ISO 9001:2015. As a certified welding company, AD2000 HP0 for pressure vessels and DIN EN 1090 for load-bearing steel structures are also documented.
| Evidence | Marsberg |
|---|---|
| ISO 9001:2015 | |
| AD2000 HP0 (certified welding company for pressure vessels) | |
| DIN EN 1090 (steel construction) |
History
- 1947
Company founded by Heinz Siebers, initially manufacturing gas-fired machines for bakery supplies.
Early connections to plant manufacturers in the thermal process industry via founder Heinz Siebers.
Today an established supplier of combustion technology in many industries, H2-ready.