Micro MIM Japan

Production Technology

Development of Micro MIM or μ‐MIM® technology

     Our micro MIM or μ‐MIM® technology is developed to manufacture extremely small metal parts. Micro MIM (μ‐MIM®) is suitable for mass production of sophisticated profile components required high dimensional precision.

What is Micro MIM (μ-MIM)

     Micro MIM or μ-MIM® is a processing technology for literally micro meter control required metal injection moulding components. The demand of micro MIM (μ-MIM®) technology is greatly enhanced lately due to not only miniaturisation but also its quality.

Advantages of Micro MIM (μ‐MIM)

Micro MIM (µ-MIM) has the following advantages compared with other manufacturing methods


  • 1. Machining: Processing cost reduction in complicated design, higher
    productivity, shorter delivery date
  • 2. Stamping: More complicated design with higher accuracy
  • 3. Pressure die casting: More material option, higher mechanical properties
  • 4. Lost-wax process: Larger manufacturing lot size, higher accuracy
  • 5. Compaction powder metallurgy: Higher mechanical properties and design freedom
  • 6. Additive manufacturing: Higher productivity and more material selection


     Difference between conventional metal injection moulding (MIM) and our micro MIM (μ‐MIM®).
Micro MIM (μ‐MIM®) technology will break the conventional metal injection moulding or MIM limitation

Fundamental technology for realising Micro MIM or μ-MIM®

     We compose our own feedstock because the binder system is the most important factor to realise high precision metal injection moulding. The final MIM quality depends on the feedstock’s quality so using the best combination of polymers and mixing ratio of metal powder – binder for each MIM project.


Micro powder

     Metal injection moulding process is one of the powder metallurgy (PM) processes, having the highest sintered density among PM. The PM components normally have rough skin thus additional post polishing process is needed. Our micro MIM or µ-MIM® manufacturing technology is applicable to use superfine metal powder, therefore smooth surface with the sophisticated exterior is realised.


Mould technology

     We have decades of experience in mould design, and additional recent flow-analysis, mould evaluation system leads us to realise high precision mould.
The positioning or design of the gate is more delicate than the plastic injection moulding. Metal injection moulding or MIM need to use metal powder, and the weight difference between the metal powder and polymer is significant. If the gate design is not appropriate, the distribution of the metal powder will be ununiformed due to inertia’s influences. This may cause a crack or other quality problem at sintering.
     In order to avoid the problems, we apply our experiences, analysis and evaluation technique to realise your product.