Your complete assembly, fully taken care of
No hassle with multiple suppliers. Just microscopic precision, efficient lead times and complete peace of mind with Tumag.
At Tumag, we take full care of the complete assembly of your parts, subassemblies and moulds. As a Belgian one-stop shop, we combine engineering, high-precision manufacturing and expert assembly under one roof. The result? A flawless process that meets the very highest industrial standards.
- 100% Peace of Mind: One single point of contact from the first machining operation to the final quality control.
- Microscopic Precision: Perfect fit and constant control guarantee maximum performance in your production.
- Faster Lead Times: By keeping everything in-house, we eliminate logistical detours and slow communication.
From machining to complete fine mechanical assembly
Tumag specialises in high-precision manufacturing of moulds, stamping tools and precision mechanical components. This allows us to align assembly perfectly with preceding operations such as CNC milling, CNC turning, HSM milling, EDM machining and grinding.
This delivers concrete benefits for your project:
- Parts are produced with the final assembly already in mind.
- Critical tolerances and fits are precisely aligned in advance.
- Deviations are detected at an early stage through our quality control.
- Assembly is faster and more accurate.
- Any necessary corrections can be carried out immediately in-house.


Why choose assembly by Tumag?
By combining production and assembly with one partner, we reduce the risk of errors, tolerance conflicts and delays. You save valuable time, maintain greater control over the project and avoid having to coordinate multiple parties yourself.
The advantages of assembly at Tumag at a glance:
- One single point of contact for both production and mechanical assembly.
- Less transport, which minimises the risk of damage to parts.
- Shorter lead times thanks to efficient internal coordination and planning.
- More efficient coordination between the machining department and final assembly.
- Strict control over fit, functionality and dimensional accuracy.
For customers in sectors such as healthcare, high-tech, aeronautics & defence and packaging, this integrated approach offers major added value. In these markets, reliability, stability and documentable quality are crucial.
Assembly and disassembly for injection moulding trials
For injection moulds, the work does not stop after the initial assembly. In practice, assembly and disassembly are often an essential part of injection moulding trials and mould validation. During a try-out under real production conditions, it becomes clear how the mould performs and whether further optimisation is required.
Tumag fully supports this process in-house. After the mould has been assembled, injection moulding trials can be carried out to assess, among other things, flow behaviour, cooling, venting, ejection and overall process stability. If this testing phase shows that adjustments are required, the mould can be professionally disassembled for inspection, correction or fine-tuning.
Typical points of attention during assembly and disassembly for injection moulding trials are:
- Inspection of sealing surfaces and the fit of mould components.
- Assessment of ejection systems and moving parts.
- Inspection of wear points or unwanted contact zones.
- Adjustment of inserts, cores or slides.
- Optimisation of cooling, venting and part removal.
Because engineering, production, assembly, injection moulding and mould maintenance are fully aligned at Tumag, adjustments can be carried out quickly and purposefully. This shortens the validation phase, limits external transport and increases the likelihood of a stable mould start-up.
Quality and control during the assembly process
At Tumag, quality does not stop after a part has been manufactured. During and after assembly, control and precision remain central. Where necessary, parts are checked in between for fit, functionality and dimensional accuracy. This means we deliver not just individual parts, but a complete solution that is technically sound.
Our integrated approach matches the high quality standard Tumag is known for. With more than 40 years of experience in mould making and precision tooling, we support customers who place high demands on reliability, process stability and the long service life of their capital equipment.


Discuss your assembly project with Tumag
Would you like to outsource the assembly of parts, subassemblies or complete moulds to an experienced partner? Tumag will be happy to help you with a tailored solution, fully aligned with your technical requirements, planning and quality expectations.
Contact us to discuss your project or request a quote. From Turnhout, we support customers in Belgium and far beyond with precision, craftsmanship and an integrated approach.
Frequently asked questions about assembly (FAQ)
What assembly work does Tumag carry out?
Tumag handles the assembly of complete moulds, precision mechanical parts and technical subassemblies. The focus is on the precise assembly of components where fit, functionality and reliability are essential.
Why is a one-stop shop for assembly interesting?
When production and assembly are handled by one partner, there are fewer handover moments and fewer risks of errors or delays. In addition, communication is faster through a single point of contact and the overall lead time is often shorter.
Does Tumag also support assembly and disassembly for injection moulding trials?
Yes. During injection moulding trials, assembly, disassembly, inspection and adjustment are often required to fine-tune the mould optimally. Tumag can manage this entire process in-house.
Is assembly only suitable for moulds?
No, in addition to complete moulds, Tumag also handles the assembly of precision mechanical assemblies and technical assemblies. This is interesting for customers who want a finished end product that is ready for immediate use.
