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.

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Product available worldwide
POWERPAC K & N

Features

  • 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

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Design Tools

Stepper Optimizer

Stepper Optimizer

Find which motor frame size will fit your application, and produce a torque/speed curve for your drive. You can also use our Application Sizing section to find the best solution that fits your application requirements.

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Product Selectors

Product Selectors

Enter your performance and sizing requirements to find the right Kollmorgen products for your application.

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Count on Kollmorgen support to help you design and build a successful machine and keep it reliably productive, anywhere in the world. Our co-engineering experts will work with you to tailor a perfect-fit solution for your motion requirements.

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Manuals Literature 2D/3D Interactive Drawings Support Certifications
Documentation
Title Language(s) Date Size
pdfPOWERPAC Installation bulletin en-EN RevA English 27 Apr 2012 512.99 KB Copy URL
Datasheet
Title Language(s) Date Size
pdfNema 34 N3 K3 Stepper Systems TB English 228.99 KB Copy URL
pdfNema 42 N4 K4 Stepper Systems TB English 238.48 KB Copy URL
Catalog
Title Language(s) Date Size
Kollmorgen Automation and Motion Control English 14 Jun 2021 15.53 MB Copy URL
Kollmorgen Optimized Solutions and Special Duty Motors English 01 Jan 2018 1.26 MB Copy URL
Stepper and Synchronous Motors Catalog EN Rev C English 19 Feb 2014 7.96 MB Copy URL

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

Drawings
Title Language(s) Date Size
3D/2D Models for PowerPAC English 24 Sep 2018 Copy URL
Article
Ingress Protection of Servo Motors [toc] Sealing is an important design tool used to prolong the life of motors against harsh environments containing dust or liquid contaminants. There are arguably an unlimited number of...
Normen und Richtlinien [toc] Allgemeines Struktur des Normenwesens am Beispiel der EN ISO 12100 Europäische Richtlinien New Legislative Framework Blue Guide: Leitfaden für die Umsetzung der...
Instructions for Selecting a Stepper Motor The Basics of Selecting a Stepper Motor The vast majority of stepper applications are fairly simple in terms of selecting the motor and drive.  Most applications have one or more of a...
Standards and Directives [toc] General Structures of standards with EN ISO 12100 as an example ISO Standards Safety of Machinery — General Principles for Design ISO 12100:2010 UL Standards...
Pull-In and Pull-Out Torque Some of the stepper motor nomenclature includes some terms not often used today.  Such terms are Pull-in Torque and Pull-out Torque.The information below may be helpful in understanding the...

Pages

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Title Language(s) Date Size
Blue Guide German 15 Jul 2015 Copy URL
pdfCEL China Efficiency Labelling for Servo and Stepper Motors English 17 Dec 2021 139.72 KB Copy URL
pdfKollmorgen CE Technical Notice - Servo and Stepper Motors Efficiency English 26 Aug 2020 389.92 KB Copy URL
pdfKollmorgen EU Declaration of Conformity PowerPac K-N-SN English 25 May 2016 114.53 KB Copy URL