Steel components, custom fabrications and plant engineering from the Westerwald – manufactured in Linden, in use worldwide.
Aldorf Maschinenbau GmbH
57629 Linden/Westerwald · 56242 SeltersNew on Amplifa
About ALDORF Maschinenbau
Aldorf Maschinenbau GmbH is a mid-sized family-owned company from the Westerwald that has been manufacturing steel components, custom steel fabrications and custom-built systems since 1971. Its portfolio includes DIN-compliant and guideline-compliant standard products, custom fabrications to drawing, plant engineering and plant modernization, as well as welding and on-site assembly work including site management. Production is carried out in steel and stainless steel, among others to DIN EN ISO 1090-2 up to EXC4, DIN EN ISO 3834-2, DIN EN ISO 14555 (stud welding) and DIN EN ISO 17660 (rebar welding); manufacturing includes robot-assisted welding, friction welding, CNC milling and CNC coordinate drilling. Key products include anchoring systems for road and bridge construction, structural engineering and the precast concrete industry, refractory anchors and furnace construction components, galvanizing plants, and chamber and membrane filter presses for the energy and environmental sectors. The systems and structures are used in the steel, glass and cement industries, in power plants and worldwide.
- Site
- Linden/Westerwald
- Processes
- Steel construction manufacturing (DIN-compliant standard products, steel components), Custom steel construction fabrications to drawings, Plant engineering (custom-built systems, series production), Galvanizing plant construction (new plants, modernization: galvanizing furnace, drying oven,, Welding work (DIN EN ISO 1090-2 EXC4, ISO 3834-2, stud welding ISO 14555, rebar welding, On-site assembly work including site management and on-site welding, Robot-assisted welding, Friction welding
- Materials
- Steel S235, Steel S355, 16Mo3, Stainless steel 1.4841, Stainless steel 1.4828, Stainless steel 1.4845, Stainless steel 1.4713, Stainless steel A2
- Certificates
- DIN EN ISO 1090-2 EXC4, DIN EN ISO 3834-2, DIN EN ISO 14555 (stud welding), DIN EN ISO 17660 (welding of reinforcing steel), DIN EN 10204 re-stamping authorization, DIN EN ISO 9001:2015, Pre-qualification for metal and steel construction work, Certified specialist company under AwSV, DIN EN ISO 17660 (rebar welding), DIN EN 10204 re-stamping authorization (TÜV Rheinland), Certified specialist company under AwSV (TÜV Nord)
- Founded
- 1971
- Employees
- 35
- Industries
- Road and bridge construction, Structural engineering, Precast concrete industry, Energy and environmental sector, Refractory industry, Galvanizing technology
- 01
Consulting and design support
- 02
Engineering and calculation
- 03
CNC machining (drilling, milling)
- 04
Welding including robot-assisted welding and friction welding
- 05
On-site assembly including site management
- 06
Service and maintenance of furnace systems
Materials and Processes
Steel S235
Base material for standard products such as guardrail anchors, hot-dip galvanized or as stainless steel variant A4.
Steel S355
Material for furnace construction components such as stacks and combustion chambers.
Steel 16Mo3
Heat-resistant structural steel for stacks and combustion chambers in industrial furnace construction.
Stainless steel 1.4841
Heat-resistant stainless steel for recirculator housings and furnace construction components.
Stainless steel 1.4828
Heat-resistant stainless steel for furnace construction components in the refractory industry.
Stainless steel 1.4845
Heat-resistant stainless steel for components in extreme furnace environments.
Stainless steel 1.4713
Material for chamber and furnace components in the refractory sector.
Stainless steel A2/A4
Stainless version for edge protection profiles, anchors and precast concrete components.
Reinforcing steel
Material for endless chains and welded rebar stirrups on edge protection profiles.
Plastic lining
Plate lining for tanks used in the chemical pre-treatment stage of galvanizing plants.
Locations
Linden/Westerwald
DEHeadquarters and production
- Lot size
- Prototypes to large series (custom fabrications in small to large series)
- Materials
- Steel S235/S355/16Mo3, stainless steel 1.4841/1.4828/1.4845/1.4713, reinforcing steel, plastic linings
- CNC coordinate drilling machine JANSEN KBA/7200 (2021)
- Welding robot EWM Xqbot (2023)
- CNC milling machine HURCO (2024)
- Friction welding machine (2004)
Selters
DEPlant premises (acquired 1984)
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Steel construction manufacturing (DIN-compliant standard products, steel components)Assembly | – | – | – | – | Steel, Stainless steel |
| Custom steel construction fabrications to drawingsAssembly | – | – | – | Small series – Large series | galvanized steel, Stainless steel A2, Stainless steel A4 |
| Plant engineering (custom-built systems, series production)Engineering | – | – | – | – | Steel |
| Galvanizing plant construction (new plants, modernization: galvanizing furnace, drying oven,Engineering | – | – | – | – | Steel |
| Welding work (DIN EN ISO 1090-2 EXC4, ISO 3834-2, stud welding ISO 14555, rebar weldingJoining | – | – | – | – | Steel, Stainless steel, Reinforcing steel |
| On-site assembly work including site management and on-site weldingAssembly | – | – | – | – | – |
| Robot-assisted weldingJoining | – | – | – | – | Steel |
| Friction weldingJoining | – | – | – | – | Steel |
| CNC millingMachining | – | – | – | – | Steel |
| CNC coordinate drilling (KBA/7200)Machining | – | – | – | – | Steel |
| Construction of chamber and membrane filter presses (also special filter presses, plate formats,Assembly | – | – | – | – | Steel |
| Refractory anchors (flat steel anchors, fin anchors, comb anchors, round anchors, corrugatedAssembly | – | – | – | – | Steel, Stainless steel |
| Engineering, consulting and calculations (drawings, optimization proposals)Engineering | – | – | – | – | – |
| Furnace construction components (recirculator housings, stacks, combustion chambers, fiber-casingAssembly | – | – | – | – | 1.4841, 1.4828, 1.4845, 1.4713, S 355, 16 Mo3 |
| Manufacture of edge protection profiles and angles (with rebar stirrups, flat steel lugs orJoining | – | – | – | – | Stainless steel, hot-dip galvanized steel |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC coordinate drilling machine | JANSEN KBA/7200 | 1 | – | 2021 | Linden/Westerwald |
| Welding robot | EWM Xqbot | 1 | – | 2023 | Linden/Westerwald |
| CNC milling machine | HURCO | 1 | – | 2024 | Linden/Westerwald |
| Friction welding machine | – | 1 | – | 2004 | Linden/Westerwald |
Additional services
Quality and Certifications
Quality is evidenced by numerous certifications, including DIN EN ISO 9001:2015, DIN EN ISO 1090-2 EXC4, DIN EN ISO 3834-2 as well as stud welding and rebar welding standards. In addition, there is a DIN EN 10204 re-stamping authorization (TÜV Rheinland) and recognition as a certified specialist company under AwSV (TÜV Nord).
| Evidence | Linden/Westerwald |
|---|---|
| DIN EN ISO 9001:2015 | |
| DIN EN ISO 1090-2 EXC4 | |
| DIN EN ISO 3834-2 | |
| DIN EN ISO 14555 (stud welding) | |
| DIN EN ISO 17660 (rebar welding) | |
| DIN EN 10204 re-stamping authorization (TÜV Rheinland) | |
| Certified specialist company under AwSV (TÜV Nord) | |
| Pre-qualification for metal and steel construction work |
Company History
- 1971
Company founded; production of electric adjustment devices for the steel industry and anchoring systems for the steel processing industry.
- 1975
Expansion of production, manufacture of industrial furnace components and pipe galvanizing plants.
- 1984
Purchase of the plant premises in Selters; acquisition of customers in neighboring countries for the maintenance of furnace-engineering systems.
- 2004
Investment in a friction welding machine; major welding qualification to DIN EN 18800 Class E; expansion of anchoring systems for civil engineering.
- 2010
Certificates DIN EN ISO 9001, EN 1090 up to EXC4, DIN EN ISO 17660-1 and DIN EN ISO 3834-2; new business fields such as dismantling components for nuclear power plants; new facility in Linden.
- 2020
Takeover of the sludge dewatering product line; construction and modification of chamber filter presses; start of robot-assisted welding.
- 2021
Acquisition of the CNC coordinate drilling machine KBA/7200 from JANSEN.
- 2023
Commissioning of the Xqbot welding robot from EWM.
- 2024
New CNC milling machine from HURCO.