Haydon Kerk Pittman (AMETEK, USA) can-stack rotary steppers are permanent-magnet can-type micro steppers: Z20000 Ø20 mm, 15° step, 0.46 Ncm (0.65 oz-in) holding / 0.12 Ncm detent; Z26000 Ø25.4 mm, 7.5°/15° step, 1.27 Ncm (1.8 oz-in) holding / 0.18 Ncm detent; ball or sleeve bearing versions suit gauge pointers, small valves and micro robot joints in low-cost open-loop positioning.
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