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Your partner in micrometer-level work for moulds, precision mechanics and cutting dies
As a specialist in high-precision manufacturing, we turn complex technical challenges into flawlessly produced components and tools. Whether it is the extreme accuracy required for complex moulds, customer-specific precision mechanics or wear-resistant cutting dies, at Tumag we master all critical production technologies under one roof.
At Tumag, we deliver high-quality machining techniques for complex and extremely precise components. With our advanced machinery, we excel in computer-controlled CNC turning and CNC milling, as well as HSM milling (High Speed Machining) for superior surface quality and fast turnaround times. We also specialise in deep hole drilling for deep, perfectly straight holes in a wide range of materials. Thanks to our expertise, we guarantee minimal tolerances for every precision mechanical workpiece.
For extremely hard materials and complex geometries that cannot be machined mechanically, we use high-precision EDM. Our capabilities include ultra-precise wire EDM, complex sinker EDM and fast EDM drilling for micro-holes. Because we fully manage the production of our own electrodes in-house, we can respond flexibly to your most specific product requirements with micrometre-level accuracy.
Our grinding department ensures the ultimate dimensional accuracy, form tolerances and surface roughness of your critical precision parts. We master the full range of grinding techniques, including surface grinding for perfect parallelism, profile grinding, cylindrical grinding (both internal and external) and ultra-precise jig grinding. This allows us to achieve the strictest geometric specifications for demanding industrial applications.
The finishing touch of our high-precision manufacturing takes place in the fine mechanical assembly department. Here, we combine true craftsmanship with modern technology for the complete finishing and assembly of your sub-assemblies and moulds. Our specialists provide manual and mechanical polishing for mirror-smooth surfaces, highly localised laser welding for exceptionally strong joints and precise repairs, as well as accurate laser engraving for permanent coding and product traceability.
Why choose Tumag’s precision?
- Micrometre accuracy: Guaranteed form and position tolerances for the most demanding industries.
- Demonstrable quality: Every critical dimension is checked using independent CMM measurements in a climate-controlled measuring room, with a measurement report.
- Everything under one roof: Seamless integration of machining, EDM, grinding and assembly.
- Specialist in high-tech tooling: Proven track record in building high-end moulds and cutting dies.
Frequently asked questions about our precision machining methods (FAQ)
Why does Tumag offer all these different machining processes under one roof?
We strongly believe in a one-stop-shop philosophy. By combining engineering, machining, EDM, grinding and fine mechanical assembly work in-house, we maintain full control over planning, logistics and accuracy. For you, this means a single point of contact, shorter lead times and the assurance that each consecutive process fits together perfectly without any loss of quality in between.
Why do you distinguish between machining, EDM and grinding?
Although all these techniques fall under the broader category of material removal processes, the underlying technology is fundamentally different. In traditional machining (milling/turning), we use mechanical cutting tools. In grinding, we use a grinding wheel to achieve the ultimate geometric tolerances. EDM, on the other hand, uses thermal electrical energy to remove material without contact. Precisely by mastering and distinguishing these unique technologies, we can choose the most efficient process route for each product.
Can I also come to Tumag for a single, individual machining process?
Of course. Although we often handle complete projects from A to Z, such as moulds or cutting dies, you can also rely on us for a single specialised process. For example, do you have an existing product or semi-finished part that only needs extremely precise grinding, polishing or adjustment by laser welding? Our specialists will be happy to carry out these specific finishing operations for you.
When is EDM chosen instead of CNC milling?
We use EDM when traditional CNC or HSM milling is technically not feasible or economically less favourable. This is the case with extremely hard materials (such as hardened steel or carbide), deep narrow cavities, or sharp internal corners without a radius.
In addition, EDM offers a specific advantage in mould making: during wire and sinker EDM, we can give the material a highly precise surface texture directly (EDM texture). This is ideal for moulds, because this texture is transferred perfectly to the final plastic product during the injection moulding process. As a result, the moulded product immediately receives the desired aesthetic or functional surface structure, such as a matt finish or extra grip, without the need for costly post-processing.
What is the added value of fine mechanical assembly work after machining?
Even the most advanced CNC machines cannot fully replace the finest manual craftsmanship and specialised finishing operations. Our fine mechanical assembly department provides that essential finishing touch. Think of microscopic polishing of mould parts for perfect release, ultra-local laser welding for modifications, or the extremely precise manual assembly of complex sub-assemblies.
