Steel trading, CNC turned and milled parts, assemblies and special tools for power plant, turbine and marine engine construction
AMH GmbH
57234 Wilnsdorf (Bochumer Str. 8) · 57234 Wilnsdorf (Bochumer Str. 12)New on Amplifa
About AMH GmbH
AMH GmbH is a medium-sized company founded in 1981 and based in Wilnsdorf (South Westphalia), with core competencies in steel service, machining and automation. In its steel trading division, over 1,200 tonnes of immediately available bar stock in round, flat and square dimensions are held on 1,500 m² of storage space, including special materials such as 1.7709 and 1.4923 for turbine construction. Cuts to customer specifications are produced at short notice on the company's own Kasto sawing machines. In the Mechanical department, demanding turned and milled parts are produced on 3-axis and 5-axis technology – from individual parts to automated series production and assembly. The range also covers grinding, deep-hole drilling, EDM, gearing, 3D metal printing, laser engraving, deburring as well as surface finishing and heat treatment via certified partners. References include global players from the power plant and marine engine construction sectors; deliveries are made worldwide including customs clearance.
- Site
- Wilnsdorf
- Processes
- CNC turning, CNC milling (3- and 5-axis), Surface, cylindrical and centreless grinding, Deep-hole drilling, Slotting and keyway broaching, Wire and sinker EDM, Gearing, Welding (incl. documentation, certified to DIN EN 1090)
- Materials
- 21CrMoV5-7, X22CrMoV12-1, P250GH+N, 20Mn5V, C35E+QT, C45E+N, C45R+N, C60E+N
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Founded
- 1981
- Industries
- Turbine construction, Power plant construction, Marine engine construction, Mechanical engineering, Vessel and steam boiler construction, Pump and valve technology
- 01
Steel trading / material stock
- 02
Cutting (sawing)
- 03
Heat treatment / finishing via partners
- 04
CNC turning
- 05
CNC milling (3- and 5-axis)
- 06
Grinding / EDM / deep-hole drilling
- 07
Surface finishing
- 08
Laser engraving / deburring
- 09
Assembly
- 10
Quality inspection
- 11
Logistics & worldwide delivery
Materials & Processes
21CrMoV5-7
Heat-resistant tempered steel for turbine and power plant components, permanently in stock.
X22CrMoV12-1
Heat-resistant chromium steel for highly stressed turbine and power plant components.
42CrMo4+QT
Tempered steel for mechanical engineering components such as shafts, bolts and gear components.
X5CrNi18-10
Austenitic stainless steel for corrosion-exposed components.
X2CrNiMo17-12-2
Molybdenum-alloyed stainless steel for demanding, corrosive environments.
X10CrMoVNb9-1+QT
Heat-resistant power plant steel (P91) for piping and boiler construction.
X6CrNiMoTi17-12-2
Titanium-stabilised stainless steel for chemical and vessel construction.
34CrNiMo6+QT
High-strength tempered steel for gear and drive components.
13CrMo4-5
Heat-resistant vessel and boiler steel.
X6NiCrTiMoVB25-15-5
High heat-resistant A286 material for turbine construction and special applications.
Nickel-based materials / Inconel
For the highest temperature and corrosion stresses, also in 3D metal printing.
Copper
Machining and 3D metal printing of copper components.
Locations
Wilnsdorf
DEMain plant: steel trading, cutting, machining
- Lot size
- Single part to series
- Materials
- Steel, stainless steel, nickel alloys
- Kasto Twin A6
- Kasto win 5.6
- Kasto 520 ATC
- Kasto 420 AU
- Kasto 360 AU
- ELB Optimal 10550 SPS
- Walter Trowal ZM03-II/FL
- Walter Trowal CB100
- Sandvik Coromant CoroPlus Tool Supply
- Zeiss Contura 9-12-8
Wilnsdorf
DEMachining production site (CNC machining, measuring room)
- Lot size
- Single part to automated large-scale series (3-shift)
- Materials
- Steel, stainless steel, nickel alloys, copper, Inconel
Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC turningMachining | < 10 µm | 2,000 mm | – | – | Steel, Stainless steel, Nickel alloys |
| CNC milling (3- and 5-axis)Machining | – | 2,600 mm × 700 mm × 700 mm | – | – | Steel, Stainless steel, Nickel alloys |
| Surface, cylindrical and centreless grindingMachining | – | – | – | – | Steel, Stainless steel |
| Deep-hole drillingMachining | – | – | – | – | Steel |
| Slotting and keyway broachingMachining | – | – | – | – | Steel |
| Wire and sinker EDMMachining | – | – | – | – | Metal |
| GearingMachining | – | – | – | – | Steel |
| Welding (incl. documentation, certified to DIN EN 1090)Joining | – | – | – | – | Steel |
| Cutting service (sawing of round, flat and square dimensions)Machining | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| AssemblyAssembly | – | – | – | – | Steel |
| Salt bath nitridingHeat treatment | – | – | – | – | Steel |
| Gas nitridingHeat treatment | – | – | – | – | Steel |
| Plasma nitridingHeat treatment | – | – | – | – | Steel |
| Vacuum nitridingHeat treatment | – | – | – | – | Steel |
| Stress-relief annealingHeat treatment | – | – | – | – | Steel |
| Hardening (via partner network)Heat treatment | – | – | – | – | Steel |
| Wet painting (optionally with sandblasting)Surface | – | – | – | – | Metal |
| Manganese phosphating (DIN EN 12476)Surface | – | – | – | – | Steel |
| Zinc phosphating (DIN EN 12476)Surface | – | – | – | – | Steel |
| Yellow and blue chromatingSurface | – | – | – | – | Metal |
| Nickel platingSurface | – | – | – | – | Metal |
| Black oxide finishingSurface | – | – | – | – | Steel |
| Hot-dip galvanisingSurface | – | – | – | – | Steel |
| AnodisingSurface | – | – | – | – | Aluminium |
| Deburring (Trowal mass finishing processes)Surface | – | – | – | – | Metal |
| Laser engraving (Kolltronic marking laser, working area 170 x 170 mm)Surface | – | 170 mm × 170 mm | – | – | Metals, Plastics |
| 3D metal printing (Markforged Metal X): jigs, tools, functional partsAdditive | – | – | – | – | Stainless steel, Inconel, Copper |
| Testing | – | – | – | – | Steel, Stainless steel, Non-ferrous metals |
| 3D coordinate measurement (Zeiss Contura 9-12-8, accuracy 1.5 µm)Testing | 1.5 µm | 1,200 mm × 900 mm × 800 mm | – | – | – |
| Manufacture and procurement of complex special toolsEngineering | – | – | – | – | Steel |
| Automated series production (3-shift, gripper solutions, pneumatic clamping systems)Machining | – | – | up to 300 kg loading weight | – | Metal |
| Workshop container manufacturing (individual mobile workshop solutions)Assembly | – | – | – | – | Steel |
28 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC lathe | DMG MORI CTX beta 800 | 1 | Ø 410 x 850 mm, steady rest | – | Wilnsdorf |
| CNC lathe | DMG MORI CTX 620 linear | 1 | Ø 500 x 980 mm | – | Wilnsdorf |
| CNC lathe | DMG MORI CTX beta 2000 | 1 | Ø 600 x 2,000 mm, steady rest | – | Wilnsdorf |
| CNC lathe | DMG MORI CTX 200 | 1 | Ø 170 x 350 mm, bar processing max. Ø 42 mm | – | Wilnsdorf |
| CNC lathe | DMG MORI CTX alpha 500 | 1 | Ø 240 x 500 mm, bar processing max. Ø 66 mm, < 10 µm tolerance | 2018 | Wilnsdorf |
| Turn-mill centre | DMG MORI CTX beta 1250 TC | 1 | Ø 500 x 1,200 mm, sub-spindle, 6-side complete machining | 2019 | Wilnsdorf |
| Turn-mill centre | DMG MORI CLX 450 TC | 1 | Ø 400 x 1,100 mm, bar pass-through 65 mm, 60 tools, B-axis ±120° | – | Wilnsdorf |
| CNC lathe | DMG MORI CTX 350 | 1 | Ø 320 x 540 mm, sub-spindle, bar pass-through 65 mm | – | Wilnsdorf |
| 5-axis milling centre | DMG MORI DMF 260/7 | 2 | 2,600 x 700 x 700 mm, swivel head, C-axis, rotary table, linear drive 80 m/min | 2017 | Wilnsdorf |
| CNC milling machine | DMG MORI DMU 75 monoBlock | 1 | 750 x 650 x 560 mm, NC swivel rotary table | – | Wilnsdorf |
| Mill-turn centre | DMG MORI DMU 80FD duoblock | 1 | 800 x 1,050 x 850 mm, mill-turning up to Ø 900 mm | – | Wilnsdorf |
| CNC milling machine with automation | DMG MORI CMX 50U + WHCell 15 | 1 | 500 x 450 x 400 mm, max. part weight 15 kg | – | Wilnsdorf |
| CNC milling machine with automation | Hedelius Acura 65 P406 | 1 | 700 x 650 x 560 mm, 6-fold pallet changer, 250 kg, Ø 500 mm | – | Wilnsdorf |
| CNC milling machine with automation | Hedelius Acura 65 SR422 | 1 | 700 x 650 x 560 mm, 22-fold pallet changer, 250 kg, 240 tools | – | Wilnsdorf |
| CNC milling machine with automation | DMG MORI DMU75 PH Cell 300 | 1 | 750 x 650 x 560 mm, 22-fold pallet changer, 300 kg, Ø 600 mm | – | Wilnsdorf |
| Surface grinding machine | ELB Optimal 10550 SPS | 1 | 1,000 x 550 mm | – | Wilnsdorf |
| Double sawing machine | Kasto Twin A6 | 1 | Cutting height 660 mm, cutting width 820 mm | – | Wilnsdorf |
| Fully automatic bandsaw machine | Kasto win 5.6 | 1 | 560 x 560 mm | – | Wilnsdorf |
| Sawing machine | Kasto 520 ATC | 1 | 520 x 520 mm | – | Wilnsdorf |
| Sawing machine | Kasto 420 AU | 1 | 420 x 420 mm | – | Wilnsdorf |
| Sawing machine | Kasto 360 AU | 1 | 360 x 360 mm | – | Wilnsdorf |
| Deburring system | Walter Trowal ZM03-II/FL | 1 | – | – | Wilnsdorf |
| Deburring system | Walter Trowal CB100 | 1 | – | – | Wilnsdorf |
| Deburring system | Walther Trowal CM305 | 1 | – | – | Wilnsdorf |
| 3D coordinate measuring machine | Zeiss Contura 9-12-8 | 1 | 900 x 1,200 x 800 mm, accuracy 1.5 µm | – | Wilnsdorf, measuring room Bochumer Str. 12 |
| 3D metal printer | Markforged Metal X | 1 | – | – | Wilnsdorf |
| Marking laser | SKLaser Kolltronic | 1 | 170 x 170 mm | – | Wilnsdorf |
| Tool dispensing system | Sandvik Coromant CoroPlus Tool Supply | 1 | – | – | Wilnsdorf |
Additional services
Reference customers
Quality
AMH GmbH is certified to DIN EN ISO 9001:2015 (TÜV NORD) and guarantees traceability of all components back to the material's producing mill. Quality inspection is carried out, among other things, with a Zeiss Contura 9-12-8 3D coordinate measuring machine (1.5 µm accuracy) as well as retesting (hardness, ultrasonic, magnetic particle, dye penetrant testing, spectral analysis) via an accredited laboratory; inspection certificates to EN 10204 (2.1, 2.2, 3.1, 3.2) are issued.
| Evidence | Wilnsdorf |
|---|---|
| ISO 9001 |
History
- 1981
Foundation of AMH GmbH
- 2000
Establishment of the main plant at Bochumer Str. 8 in the Wilnsdorf Lehnscheid industrial park
- 2014
Expansion with an additional production site at Bochumer Str. 12
- 2017
Investment in DMG MORI DMF 260 milling centres; focus on digitalisation and automation
- 2018
Investment in DMG MORI CTX alpha 500 universal lathe
- 2019
Investment in DMG MORI CTX beta 1250 TC turn-mill machine