PRODUCTEN
From complex design to finished component: precision that makes the difference
In the demanding world of mechanical engineering and industry, there is no room for error. At Tumag, we turn complex challenges into tangible, high-quality solutions. Thanks to our focus on high-precision manufacturing and advanced machining, we deliver components that integrate seamlessly into your end products and subassemblies.
Our strength lies in the combination of years of expertise and a state-of-the-art machine park. Whether it concerns unique prototypes or critical spare parts, we safeguard quality through strict quality control and innovative engineering. Driven by our mission to push technological boundaries, we proactively think along with you about manufacturability and efficiency.
Advanced CAD/CAM: Digital precision with Siemens NX
At Tumag, we work according to the highest industrial standards. Our engineering department uses Siemens NX, enabling us to prepare complex geometries flawlessly for production.
- Future-oriented methodologies: We master modern techniques such as PMI (Product Manufacturing Information) and MBD (Model Based Definition). This allows all critical tolerances and material requirements to be integrated directly into the 3D model, reducing the margin for error and increasing speed.
- Flexible workflow: While we are at the forefront of 3D-driven manufacturing, we remain flexible. Of course, we can also work from a traditional 2D drawing to realise your project.
Why outsource precision mechanics to Tumag?
Choosing Tumag means choosing complete peace of mind and absolute reliability.
- Fully in-house process: The entire chain – from engineering and work preparation to machining and quality control – is under one roof in Turnhout. This ensures short communication lines, fast iterations and full control over lead times.
- Plug-and-play components: We deliver components that can be used directly in your machines or moulds, often without any additional post-processing.
- Repair and reproduction: We do not limit ourselves to new parts. Based on existing (damaged) parts, we can create an exact reproduction through reverse engineering or carry out repairs.
- Surface expertise: Whether it is laser engraving for traceability or achieving extremely low Ra values, we have the in-house capabilities to do it.
Materials in precision mechanics: technical specifications
The choice of material determines the service life and functionality of your component. Below you will find an overview of the most commonly machined materials and their specific applications.
Aluminium machining: lightweight and dimensionally stable alloys
Aluminium is one of the most commonly used materials in precision mechanics due to its favourable strength-to-weight ratio and excellent machinability. It naturally offers good corrosion resistance and high thermal conductivity. Thanks to the versatility of its various alloys, aluminium is ideally suited to both complex machine parts and precision components in weight-sensitive sectors such as aerospace and high-tech industry.
| Type | Features | Typical Applications |
| Alu 6082 (Si1) | Good machinability, high corrosion resistance. | Structural machine components, frames. |
| Alu 7075 (T6) | “Aerospace-grade aluminum,” very high strength and hardness. | High-performance tools, aerospace components. |
| Alu 5083 | Excellent seawater resistance and low internal stress. | Precision plates, marine applications. |
Steel and tool steel: maximum strength and wear resistance
For applications where maximum mechanical strength, hardness and wear resistance are crucial, steel is the industry standard. Depending on the specific alloy and heat treatment, steel offers superior properties, ranging from the high corrosion resistance of stainless steel to the extreme service life of tool steel for dies and moulds. We machine steel grades that guarantee minimal deformation and maximum reliability under heavy loads.
| Type | Features | Typical Applications |
| 1.2379 (D2) | Extremely wear-resistant, hardenable up to 60–62 HRC. | Cutting dies, mould components, wear parts. |
| RVS 316L | Superior corrosion resistance, suitable for medical applications. | Medical instruments, food industry. |
| 42CrMo4 | High tensile strength and toughness. | Shafts, gears, heavily loaded bolts. |
| 1.2311 / 1.2344 | Excellent thermal conductivity and machinability. | Mould sleeves and high-end tooling. |
Engineering plastics: precision components in technical plastics
Engineering plastics offer unique functional advantages that metals often cannot match, such as a very low coefficient of friction, excellent chemical resistance and electrical insulation. In precision mechanics, plastics are often selected for components that require weight reduction, noise dampening or specific sliding properties. Thanks to our precise machining techniques, we guarantee high dimensional stability, even for materials with lower rigidity.
| Type | Features | Typical Applications |
| POM (Delrin) | High stiffness, low friction, excellent dimensional stability. | Precision gears, plain bearings, bushings. |
| PEEK | Extreme chemical and temperature resistance. | High-tech sensors, aerospace, medical connectors. |
| PA6 (Nylon) | Wear-resistant and shock-absorbing. | Rollers, guides, mechanical components. |
| PTFE (Teflon) | Extremely low coefficient of friction, chemically inert. | Seals, linings in chemical process engineering. |
On the injection moulding page, you can find a much more comprehensive list of processable plastics.
Frequently asked questions about precision mechanics
What surface quality (Ra value) can be achieved?
Thanks to our advanced machine park and our specific grinding and polishing techniques, we can achieve very low surface roughness values. We accurately measure the Ra value in our measurement room to meet your strictest requirements for friction and aesthetics.
Can you repair damaged parts?
Yes. We can analyze damaged components, determine the original tolerances, and repair the part or manufacture an identical reproduction. This minimizes the downtime of your machine park.
Do you also provide laser engraving?
Certainly. In our precision assembly department, we can provide parts with laser engraving for part numbers, logos, or scale markings, which is essential for traceability.
What are PMI and MBD?
MBD (Model Based Definition) is a method in which the 3D CAD model contains all the information required for production.
PMI (Product Manufacturing Information) refers to the digital labels (such as tolerances and surface roughness) within that model. This eliminates the need for paper drawings and prevents interpretation errors.
