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Stepper Optimizer
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POWERPAC® K Series

POWERPAC® K Series incorporates enhanced-stator technology for higher acceleration and torque performance. These hybrid stepper motors deliver exceptional power in rugged NEMA 34 and 42 frame sizes. These motors combine optimal magnetics in a housingless frame with a large diameter rotor and innovative rotor-stator design to produce more torque and smoother microstepping.

In addition, they are available in numerous configurations including: flying lead, MS connector or terminal board connection options, optional mounted incremental encoder or encoder mounting provisions, and shaft seal options.

Recommended For Applications That Require:
- Exceptional torque performance in NEMA 34 or 42 frame size.
- Short lead time (1-2 weeks).
- Splash-proof terminal board plus shaft seal option for IP65 protection.
- MS connector option.
- Mounted incremental encoder option.
- “Lite” modification/customization capability.

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Motor Name Frame Size Motor Length Configuration Holding Torque Rated Current
K31xxxH-L NEMA 34 3.13 in Bipolar Parallel 801 oz-in 2.8 Amps
K31xxxH-L NEMA 34 3.13 in Bipolar Series 801 oz-in 1.4 Amps
K31xxxJ-L NEMA 34 3.13 in Bipolar Parallel 819 oz-in 5.5 Amps
K31xxxJ-L NEMA 34 3.13 in Bipolar Series 819 oz-in 2.7 Amps
K31xxxK-L NEMA 34 3.13 in Bipolar Parallel 845 oz-in 6.6 Amps
K31xxxK-L NEMA 34 3.13 in Bipolar Series 845 oz-in 3.3 Amps
K31xxxL-L NEMA 34 3.13 in Bipolar Parallel 829 oz-in 8.6 Amps
K31xxxL-L NEMA 34 3.13 in Bipolar Series 829 oz-in 4.3 Amps
K32xxxJ-L NEMA 34 4.65 in Bipolar Parallel 1510 oz-in 5.1 Amps
K32xxxJ-L NEMA 34 4.65 in Bipolar Series 1510 oz-in 2.5 Amps
K32xxxK-L NEMA 34 4.65 in Bipolar Parallel 1580 oz-in 6.1 Amps
K32xxxK-L NEMA 34 4.65 in Bipolar Series 1580 oz-in 3 Amps
K32xxxL-L NEMA 34 4.65 in Bipolar Parallel 1510 oz-in 8.1 Amps
K32xxxL-L NEMA 34 4.65 in Bipolar Series 1510 oz-in 4.1 Amps
K32xxxM-L NEMA 34 4.65 in Bipolar Parallel 1530 oz-in 10 Amps
K32xxxM-L NEMA 34 4.65 in Bipolar Series 1530 oz-in 5 Amps
K33xxxJ-L NEMA 34 6.13 in Bipolar Parallel 2140 oz-in 5 Amps
K33xxxJ-L NEMA 34 6.13 in Bipolar Series 2140 oz-in 2.5 Amps
K33xxxK-L NEMA 34 6.13 in Bipolar Parallel 2200 oz-in 6.1 Amps
K33xxxK-L NEMA 34 6.13 in Bipolar Series 2200 oz-in 3 Amps
K33xxxL-L NEMA 34 6.13 in Bipolar Parallel 2340 oz-in 9 Amps
K33xxxL-L NEMA 34 6.13 in Bipolar Series 2340 oz-in 4.5 Amps
K33xxxM-L NEMA 34 6.13 in Bipolar Parallel 2150 oz-in 9.9 Amps
K33xxxM-L NEMA 34 6.13 in Bipolar Series 2150 oz-in 5 Amps
K34xxxJ-L NEMA 34 7.68 in Bipolar Parallel 2770 oz-in 5.5 Amps
K34xxxJ-L NEMA 34 7.68 in Bipolar Series 2770 oz-in 2.8 Amps
K34xxxK-L NEMA 34 7.68 in Bipolar Parallel 2580 oz-in 6 Amps
K34xxxK-L NEMA 34 7.68 in Bipolar Series 2580 oz-in 3 Amps
K34xxxL-L NEMA 34 7.68 in Bipolar Parallel 2790 oz-in 8.7 Amps
K34xxxL-L NEMA 34 7.68 in Bipolar Series 2790 oz-in 4.4 Amps
K34xxxM-L NEMA 34 7.68 in Bipolar Parallel 2720 oz-in 11.3 Amps
K34xxxM-L NEMA 34 7.68 in Bipolar Series 2720 oz-in 5.6 Amps
K41xxxJ-L NEMA 42 3.89 in Bipolar Parallel 2090 oz-in 5.5 Amps
K41xxxJ-L NEMA 42 3.89 in Bipolar Series 2090 oz-in 2.7 Amps
K41xxxL-L NEMA 42 3.89 in Bipolar Parallel 2090 oz-in 8.7 Amps
K41xxxL-L NEMA 42 3.89 in Bipolar Series 2090 oz-in 4.4 Amps
K41xxxM-L NEMA 42 3.89 in Bipolar Parallel 2130 oz-in 10.7 Amps
K41xxxM-L NEMA 42 3.89 in Bipolar Series 2130 oz-in 5.3 Amps
K42xxxK-L NEMA 42 5.91 in Bipolar Parallel 3960 oz-in 6.4 Amps
K42xxxK-L NEMA 42 5.91 in Bipolar Series 3960 oz-in 3.2 Amps
K42xxxL-L NEMA 42 5.91 in Bipolar Parallel 3930 oz-in 8.1 Amps
K42xxxL-L NEMA 42 5.91 in Bipolar Series 3930 oz-in 4 Amps
K42xxxM-L NEMA 42 5.91 in Bipolar Parallel 4020 oz-in 9.9 Amps
K42xxxM-L NEMA 42 5.91 in Bipolar Series 4020 oz-in 4.9 Amps
K42xxxN-L NEMA 42 5.91 in Bipolar Parallel 4000 oz-in 15.8 Amps
K42xxxN-L NEMA 42 5.91 in Bipolar Series 4000 oz-in 7.9 Amps
K43xxxK-L NEMA 42 7.92 in Bipolar Parallel 5660 oz-in 6.2 Amps
K43xxxK-L NEMA 42 7.92 in Bipolar Series 5660 oz-in 3.1 Amps
K43xxxL-L NEMA 42 7.92 in Bipolar Parallel 5530 oz-in 8 Amps
K43xxxL-L NEMA 42 7.92 in Bipolar Series 5530 oz-in 4 Amps
K43xxxM-L NEMA 42 7.92 in Bipolar Parallel 5630 oz-in 9.9 Amps
K43xxxM-L NEMA 42 7.92 in Bipolar Series 5630 oz-in 4.9 Amps
K43xxxN-L NEMA 42 7.92 in Bipolar Parallel 5700 oz-in 15.4 Amps
K43xxxN-L NEMA 42 7.92 in Bipolar Series 5700 oz-in 7.7 Amps