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Stepper Motors

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.

PMX Series

The PMX family of hybrid stepper motors offers unmatched versatility through a wide range of standard and customizable options, unmatched value through exceptional performance at an affordable cost, and unmatched reliability through Kollmorgen’s superior motion expertise and build quality.

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POWERMAX M and P series

The POWERMAX II® M and P Series are NEMA 23 stepper motors feature an octagonal housing and are available in half-, single-, and two-stack configurations. These units offer a wide variety of standard options and affordable co-engineered modifications, without sacrificing scalability and lead time.

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POWERPAC K and N Series

The POWERPAC series includes rugged NEMA 34 and 42 hybrid stepper motors designed to achieve extremely high torque. These units are available with standard options and co-engineered modifications to provide an exact application fit.

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E&H Hybrid Series

Featuring a conventional round frame, these high-efficiency, low-loss stepper motors provide lower rotor inertia and higher acceleration compared to other motors in their class. They are available in NEMA 23, 34, and 42 frame sizes.

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High Torque

High Torque

Our T2, T, KM and MH172 Series stepper motors provide the highest torque in a wide range of frame sizes. These motors offer a high-performance, cost-effective alternative to pneumatic, hydraulic and servomotor systems.

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CT Series

CT series Nema 17 and 23 motors incorporate innovative cooling technology, high-torque magnetic designs, rugged bearings and high-voltage insulation systems. These motors support large mechanical loads and can be used with any stepper drive.

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MX Series Hazardous Duty

MX Series are Explosion-proof rated stepper motors, designed to meet Class I, Division 1, Group D hazardous location requirements. They are available in NEMA 34 and 42 frame sizes providing minimum holding torques from 1.27 to 9.82 N-m (180 to 1,390 oz-in).

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