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POWERPAC® K and N Series Stepper Motors

POWERPAC® hybrid stepper motors deliver more power in a smaller package. These rugged NEMA 34 and 42 (90 and 110 mm) 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. The K Series incorporates flux-focusing SIGMAX® technology for higher acceleration with 25 percent more torque.
Product available worldwide
Companion Products 
P7000 Series

Kollmorgen's P7000 stepper drives provide you servo-like system performance with the cost and simplicity...

  • Wide range of standard options
  • Affordable co-engineered modifications with a short lead time to meet unique application requirements
  • N3 models, NEMA 34 (90 mm) motors are available in 4 stack lengths with torque ratings from 3.2 to 15.4 N-m (454 to 2,180 oz-in) nominal holding torque.
  • K3 models, NEMA 34 (90 mm) motors are available in 4 stack lengths with torque ratings from 4.08 to 19.7 N-m (578 to 2,790 oz-in) nominal holding torque.
  • N4 models, NEMA 42 (110 mm) motors are available in 3 stack lengths with torque ratings from 8.12 to 30.8 N-m (1,150 to 4,365 oz-in) nominal holding torque.
  • K4 models, NEMA 42 (110 mm) motors are available in 3 stack lengths with torque ratings from 10.4 to 40.3 N-m (1,470 to 5,700 oz-in) nominal holding torque.
  • Extensive selection of shaft configurations, terminations, windings and co-engineered modifications to suit your application needs, time frame and budget
  • Speeds up to 3,000 rpm meet the velocity demands of most high-torque applications
  • Improved torque linearity (above rated current) provides high peak torque to boost acceleration in intermittent-duty applications
  • High torque at moderate speeds to enable a cost-effective alternative to servo motors
  • Low detent torque harmonic provides smoother microstepping performance
  • K Series incorporates SIGMAX® technology for 25% more torque than N Series
  • Runs cooler than comparable steppers to provide longer, more reliable motor life
  • Special rotor design enables high acceleration
  • Rugged, “housingless” square frame means more torque in a smaller package
  • IP65 sealing for splashproof protection
  • Two-phase design is compatible with most drives and provides smoother microstepping and lower power input versus three-phase motors
  • Optional encoder mounting provisions
Title Language(s) Date Size Email
pdfPOWERPAC Installation bulletin en-EN RevA English 27 Apr 2012 512.99 KB
Title Language(s) Date Size Email
pdfKollmorgen EU Declaration of Conformity PowerPac K-N-SN English 25 May 2016 114.53 KB
Title Language(s) Date Size Email
pdfNema 34 N3 K3 Stepper Systems TB English 228.99 KB
pdfNema 42 N4 K4 Stepper Systems TB English 238.48 KB
Title Language(s) Date Size Email
Kollmorgen Automation and Motion Control English 06 Nov 2019 15.76 MB
Kollmorgen Automation Suite (KAS) Catalog English 01 Dec 2017 14.02 MB
Kollmorgen Optimized Solutions and Special Duty Motors English 01 Jan 2018 1.26 MB
Stepper and Synchronous Motors Catalog EN Rev C English 19 Feb 2014 7.96 MB
Kollmorgen Automationslösungen Katalog German 09 Apr 2017 11.17 MB
Kollmorgen Catalogo Automazione e Motion Control IT Italian 01 Jan 2020 12.08 MB
Kollmorgen otomasyon ve hareket kontrol çözümleri kataloğu TR Turkish 12 Feb 2016 11.05 MB
科尔摩根 运动控制及伺服系统解决方案 Chinese, Simplified 26 Jan 2018 16.64 MB
Title Language(s) Date Size Email
Kollmorgen Motion Components Brochure EN RevB English 14 Oct 2011 1.81 MB
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These 3D models are intended to guide your design activities and may be used as reference information. Be sure to consult a Kollmorgen expert to ensure you have the most current and accurate information for critical aspects of design work

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