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Micro milling machines are suited for small tools and small workpieces. They are characterized by spindle speeds faster than 50,000 rpm using small HSK tool holders such as HSK-E32, E25, or E20. With the right holder, tool runout can be controlled to less than 1µm (.000040") at the cutting edge, ensuring sub-micron accuracy. In medical micromachining, understanding each piece of the equipment puzzle is critical. It’s also important not to make assumptions based on other tools or parts you may have worked with, especially in more standard sizes. Invest the right time and energy in gearing up for the next medical job and you’ll get more parts done right faster.

Micromachining requires machine tools with very high sensitivity, fine resolution in the feed axis, and very precise spindles capable of high speed with low dynamic runout. For micro-drilling operations, specialized micro machines are best.

CONTRIBUTOR Jack Burley is the Vice President Sales & Engineering at BIG KAISER Email: jack.burley@us.bigkaiser.com

Micro milling machines, ideally suited for small tools and small workpieces, are characterized by spindle speeds of more than 50,000rpm using small HSK tool holders such as HSK-E32, E25, or E20.

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