Manufacturing of sophisticated components, assemblies and vessels made of stainless steel and specialty materials for mechanical, apparatus and vessel engineering.
MARDIE Maschinen- und Apparatebau GmbH
Duingen (31089)New on Amplifa
About us
MARDIE Maschinen- und Apparatebau GmbH is a manufacturer of sophisticated mechanical and apparatus engineering with a specialization in stainless steel processing. Since its foundation in 1980 by Günter Marquardt, components, assemblies, apparatuses and vessels have been manufactured in Duingen on a production area of more than 3000 m² – including pressurized and non-pressurized vessels in round and square designs, single- or double-walled, also heated and insulated, as well as housings, pipelines, pipe components and mechanical engineering parts. Materials processed include stainless steel (austenitic, duplex, martensitic), specialty materials such as nickel-based alloys and titanium as well as aluminum alloys and mixed joints. The manufacturing range covers 5-axis milling and mill-turn machining, boring mill machining, 2D/3D laser cutting, automated and manual welding processes, forming technology as well as surface technology up to and including linings. As an approved manufacturer under AD 2000 HP 0 and the ASME Boiler & Pressure Vessel Code (U/U2-Stamp), the company supplies ready-to-install products, among others, for the pharmaceutical and food industries, and for apparatus, vessel and pressure equipment engineering. Since 01.01.2022, manufacturing has been powered exclusively by eco-electricity; since 2000, Jens Marquardt has been leading the company in its second generation.
- Site
- Duingen
- Processes
- 5-axis milling, 5-axis mill-turn machining, Conventional turning, Long turning, Boring mill machining, Long planing, 2D/3D laser cutting, 2D/3D laser welding
- Materials
- Austenitic stainless steel, Duplex stainless steel, Martensitic stainless steel, Nickel-based alloys, Titanium, Aluminum alloys, PTFE, ETFE
- Certificates
- DIN ISO 9001:2015, DIN ISO 14001:2015, AD 2000 HP 0, DIN EN ISO 3834-2, ASME Boiler & Pressure Vessel Code (U/U2-Stamp), ISO 9001, ISO 14001, ISO 3834-2, ASME U/U2-Stamp
- Founded
- 1980
- Industries
- Mechanical engineering, Apparatus and vessel engineering, Pressure equipment engineering, Pharmaceutical industry, Food industry
- 01
Design / qualified consulting
- 02
Laser cutting
- 03
Bending / roll bending / winding of pipe coils
- 04
Machining (5-axis milling, turning, boring mill)
- 05
Welding (manual, automated, orbital, 3D laser)
- 06
Surface treatment (pickling/passivation, grinding, electropolishing)
- 07
Non-destructive testing
- 08
Assembly / delivery of ready-to-install apparatuses and vessels
Materials and Processes
Austenitic stainless steel
Focus of processing, among others for the pharmaceutical and food industries with increased purity requirements.
Duplex stainless steel
For applications under critical pressure and temperature conditions.
Martensitic stainless steel
Components oriented toward wear resistance and strength.
Nickel-based alloys
For use with aggressive or critical media.
Titanium
Specialty material for highly corrosive applications in apparatus engineering.
Aluminum alloys
Machining and welding technology for lightweight components and mixed joints.
PTFE
Plastic lining for vessels and apparatuses in media contact.
ETFE
Lining material for chemically stressed surfaces.
Hard rubber and soft rubber
Material linings for corrosion protection of vessels.
Locations
Duingen
DEProduction site / Company headquarters
- Materials
- Stainless steel (austenitic, duplex, martensitic), nickel-based alloys, titanium, aluminum alloys, PTFE, ETFE
- 2× 5-axis machining center
- 5-axis mill-turn machining center
- 2× boring mill
- Wide belt grinding machine
- 5-axis laser cutting machine
- Press brakes
- Roll bending machines
- Automated longitudinal/circumferential seam welding equipment
- Orbital welding system
- 3D laser welding equipment
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| 5-axis millingMachining | – | – | – | – | Stainless steel, Specialty materials, Aluminum alloys |
| 5-axis mill-turn machiningMachining | – | – | – | – | Stainless steel, Specialty materials, Aluminum alloys |
| Conventional turningMachining | – | – | – | – | – |
| Long turningMachining | – | – | – | – | – |
| Boring mill machiningMachining | – | – | – | – | – |
| Long planingMachining | – | – | – | – | – |
| 2D/3D laser cuttingMachining | – | – | – | – | – |
| 2D/3D laser weldingJoining | – | – | – | – | – |
| Automated longitudinal/circumferential seam weldingJoining | – | – | – | – | – |
| Orbital weldingJoining | – | – | – | – | – |
| Manual welding processes (TIG, MIG/MAG, stick welding)Joining | – | – | – | – | Stainless steel, Nickel-based alloys, Titanium, Aluminum alloys |
| Long belt / wide belt / manual grindingSurface | – | – | – | – | – |
| Press braking of sheets and profilesForming | – | – | – | – | – |
| Roll bending of sheets and profilesForming | – | – | – | – | – |
| Winding of pipe coilsForming | – | – | – | – | – |
| PMI testingTesting | – | – | – | – | – |
| Pressure testingTesting | – | – | – | – | – |
| Leak testingTesting | – | – | – | – | – |
| Dye penetrant testingTesting | – | – | – | – | – |
| Roughness testingTesting | – | – | – | – | – |
| Wall thickness measurementTesting | – | – | – | – | – |
| Radiographic testingTesting | – | – | – | – | – |
| Surface crack testingTesting | – | – | – | – | – |
| Pickling / passivationSurface | – | – | – | – | – |
| Glass bead blastingSurface | – | – | – | – | – |
| ElectropolishingSurface | – | – | – | – | – |
| Linings (hard rubber, soft rubber, PTFE, ETFE)Surface | – | – | – | – | Hard rubber, Soft rubber, PTFE, ETFE |
| Coatings (primed, painted)Surface | – | – | – | – | – |
| Vessel manufacturing (pressurized/non-pressurized, round/square, single-/double-walled,Assembly | – | – | – | – | Stainless steel, Nickel-based alloys, Titanium |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 5-axis machining center | – | 2 | – | – | Duingen |
| 5-axis mill-turn machining center | – | 1 | – | – | Duingen |
| Boring mill | – | 2 | – | – | Duingen |
| Wide belt grinding machine | – | 1 | – | – | Duingen |
| 5-axis laser cutting machine | – | 1 | – | – | Duingen |
| Press brake | – | – | – | – | Duingen |
| Roll bending machine | – | – | – | – | Duingen |
Additional services
Quality and Certifications
Manufacturing takes place under a quality management system according to DIN ISO 9001:2015 including regular audits of the facility and employee training. Non-destructive testing methods such as PMI testing, pressure, leak, dye penetrant, radiographic and surface crack testing as well as roughness and wall thickness measurement complement quality assurance.
| Evidence | Duingen |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| ISO 3834-2 | |
| AD 2000 HP 0 | |
| ASME U/U2-Stamp |
History
- 1980
Company founded by Günter Marquardt in Duingen
- 2000
Management taken over by Jens Marquardt, leadership in the second generation
- 2022
Conversion of manufacturing to exclusively eco-electricity as of 01.01.2022