Micro Forceps

Micro Forceps That Push the Limits of Machining and Conventional MIM

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With advances in minimally invasive and robot-assisted surgery, micro forceps—which are becoming increasingly compact—must simultaneously achieve extreme miniaturization, high strength, and high precision. However, when it comes to micro-hinges and anti-slip tooth patterns with pitches of several hundred μm, conventional machining faces limitations due to tool wear and deburring, while standard MIM inevitably results in edge rounding at the cutting edges and sintering distortion in the hinge holes.

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Micro MIM Europe GmbH utilizes ultra-fine powders measuring just a few μm—which other companies cannot handle—along with proprietary in-house technology to achieve mass production without the need for post-processing (fully net-shape).
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Four Strengths That Solve Micro-Forceps Design Challenges‍

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- Reproduction of micro-serration sharpness (edge R ≤ 10 μm)

Using ultra-fine powders, we precisely reproduce the sharp tips of serrated teeth and cutting edges—which tend to round off in conventional MIM. There is also no risk of damaging the serrated teeth during the deburring process.

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- Hinge precision achieved without secondary processing (tolerance for micro-parts: ±0.01 mm)

Through uniform control of sintering shrinkage, we maintain the roundness of fine pin holes with high precision during sintering. This ensures smooth opening and closing clearance without the need for secondary processing.

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- Zero assembly tolerance through “integral molding” of complex linkages‍

Undercuts and hollow structures are molded as a single part. By eliminating the need for micro-pin insertion and welding, we fundamentally eliminate the risk of play or intraoperative detachment caused by cumulative tolerances.

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- Surface roughness (Ra 0.35–0.4 μm) and high density (relative density of 98.5% or higher) that prevent polishing defects

A smooth surface is achieved directly from the sintered state, minimizing polishing steps. For materials such as 17-4PH, SUS316L, and titanium alloy (Ti-6Al-4V), it guarantees rigidity comparable to cast materials, ensuring no fractures even in extremely thin-walled sections.