Stepper Motors & Drives

Stepper motors divide each full rotation into a number of equally sized steps. Also known as step or stepping motors, these 2-phase brushless DC motors offer quick, precise load positioning and exceptional holding torque at any of these incremental steps. Each step represents 1.8°, or 200 steps per revolution. When using a microstepping drive, each 1.8° step can be broken into even smaller increments to achieve nearly servo-like positioning performance—without the need for complex feedback devices or a closed-loop control system.

A Comprehensive Product Line

Kollmorgen stepper motors are used in applications from life-sustaining medical devices to high-throughput manufacturing lines to explosive oil and gas production environments. With decades of stepper design experience, we have developed a wide range of motor series to suit the needs of OEMs in virtually any motion-critical industry—whether the application requires a high value-to-cost ratio, premium performance in extreme environments, or specialized capabilities and fit.

Highest Performance

All Stepper motors lose usable torque as running speed increases. This is known as torque roll-off. Kollmorgen minimizes torque roll-off through superior optimization of electromagnetic design. Several Stepper families also offer Enhanced technology. Enhanced motors include rare earth magnet added in the motor stator – which results in torque increases up to 25% across the entire speed range.

With Kollmorgen’s unmatched motion expertise, you can achieve higher speeds while maintaining all the torque you need. Your machine can be smaller, faster, more energy-efficient, and more affordable to build and operate—all measurable advantages over machines powered by competitors’ motors.

Co-Engineered Modifications and Custom Prototyping

Kollmorgen offers a huge selection of standard sizes, constructions, windings and options including custom leads, shafts and connectors—plus thousands of standard modifications to help you achieve a perfect fit for your application.

Moreover, we can collaborate with you to co-engineer features such as shaft and seal modifications, specialized windings, application-specific cables and connectors, integrated encoders and more. We can even deliver fully custom solutions, with minimal additional lead time and investment, thanks to our rapid prototyping, optimized manufacturing and global supply footprint.

Proven Reliability and Support

Made in the U.S.A., our advanced hybrid stepper motors incorporate large bearings, high-voltage insulation, large rotor diameters, tight air gap tolerances, and high-energy magnets and windings that other manufacturers don’t offer. These rugged design features have been proven time and again in the field, ensuring a long, reliable service life that we back with a two-year warranty.

And when you need technical assistance, you can always count on our self-service design and product selection tools, engineer-to-engineer expertise, and in-region product design, manufacturing and support.