
Contract manufacturing of CNC turned and milled parts to drawing – from one-off production to large-scale series, including surface finishing.

CNC-Fertigung Stefan Ramm
Hürtgenwald (Zweifaller Weg 2, 52393) · GermanyNew on Amplifa
About CNC-Fertigung Stefan Ramm
CNC-Fertigung Stefan Ramm is a sole proprietorship for machining technology founded in 2015 and based in Hürtgenwald in the Eifel region. The company produces turned and milled parts to customer drawings, from single parts through prototypes and small series to large-scale series, as well as contract work and tool manufacturing. The processes include CNC milling (3-axis, up to 1200 x 500 x 400 mm), CNC turning up to Ø 400 x 700 mm, turn-mill machining with driven tools up to Ø 230 x 700 mm, conventional turning, and sawing up to Ø 260 mm. Materials machined include steel, stainless steel, plastics and non-ferrous metals, including aluminium. Through long-standing regional partners, surface finishing (anodizing, chrome plating, electroless nickel plating, black oxide finishing, zinc plating) and heat treatment (case hardening, nitriding, induction hardening, tempering, among others) are additionally offered. Main industries are mechanical engineering and general machining technology.
- Site
- Hürtgenwald
- Processes
- CNC milling (3-axis), CNC turning, CNC turning with driven tools, Turning (conventional), Drilling, Sawing, Anodizing, Chrome plating
- Materials
- Steel, Stainless steel, Plastic, Non-ferrous metal, Aluminium, Copper, Brass
- Founded
- 2015
- Industries
- Mechanical engineering, Machining technology / contract manufacturing, Machining technology/contract manufacturing
- 01
CNC milling
- 02
CNC turning
- 03
Turning (conventional)
- 04
Drilling
- 05
Sawing
- 06
Surface finishing (external)
- 07
Heat treatment (external)
Materials and Processes
Steel
Standard material of the contract manufacturing for turned, milled and sawn parts, suitable for tempering and case hardening.
Stainless steel
For corrosion-resistant components; even small parts can be blackened (black oxide finished).
Plastic
Machining of machinable plastics for technical parts to drawing.
Non-ferrous metal
Machining of non-ferrous metals such as aluminium on turning and milling machines.
Aluminium
Lightweight components, subsequently anodizable (protection and decoration).
Copper
Electrically conductive non-ferrous metal, well machinable (according to the FAQ also relevant for EDM).
Brass
Easily machinable non-ferrous metal for turned and milled parts.
Locations

Hürtgenwald
DERegistered office and production
- Lot size
- Single parts to large-scale series
- Materials
- Steel, stainless steel, plastic, non-ferrous metal (including aluminium)
- CNC milling machines (3-axis, up to 1200 x 500 x 400 mm)
- CNC lathes (up to Ø 400 x 700 mm)
- CNC lathes with driven tools (up to Ø 230 x 700 mm)
- Conventional lathes (up to Ø 430 x 250 mm or Ø 250 x 1000 mm)
- Sawing systems (up to Ø 260 mm)
Components



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| CNC milling (3-axis)Machining | – | 1200 mm × 500 mm × 400 mm | – | Large-scale series | Steel, Stainless steel, Plastic, Non-ferrous metal |
| CNC turningMachining | – | 700 mm × Ø 400 mm | – | Large-scale series | Steel, Stainless steel, Plastic, Non-ferrous metal |
| CNC turning with driven toolsMachining | – | 700 mm × Ø 230 mm | – | Large-scale series | Steel, Stainless steel, Plastic, Non-ferrous metal |
| Turning (conventional)Machining | – | 1000 mm (at Ø 250 mm) or 250 mm (at × Ø 430 mm or Ø 250 mm | – | Large-scale series | Steel, Stainless steel, Plastic, Non-ferrous metal |
| DrillingMachining | – | – | – | – | Steel, Stainless steel, Plastic, Non-ferrous metal |
| SawingMachining | – | Ø 260 mm | – | – | Steel, Stainless steel, Plastic, Non-ferrous metal |
| AnodizingSurface | – | – | – | – | Aluminium |
| Chrome platingSurface | – | – | – | – | – |
| Electroless nickel platingSurface | – | – | – | – | – |
| Black oxide/oxidizingSurface | – | – | – | – | Steel |
| Zinc platingSurface | – | – | – | – | – |
| Case hardeningHeat treatment | – | – | – | – | – |
| NitridingHeat treatment | – | – | – | – | – |
| Induction hardeningHeat treatment | – | – | – | – | – |
| Stress-relief annealingHeat treatment | – | – | – | – | – |
| TemperingHeat treatment | – | – | – | – | Steel |
| NormalizingHeat treatment | – | – | – | – | – |
Additional services
History
- 2015
Foundation of the sole proprietorship CNC-Fertigung Stefan Ramm by Stefan Ramm after more than 10 years of professional experience as a cutting machine operator.