Value-optimized servo motors for standard machine axes

Kollmorgen Essentials Servo Motors are designed for machine builders who need a modern servo motor family with practical performance, simplified integration and reduced system complexity. The KEM motor range covers common power levels and IEC frame sizes, making it suitable for many standard servo axes in industrial machinery.

This motor family is especially useful when the application does not require a highly customized motor configuration, but still needs reliable servo performance, absolute feedback, flexible mounting and compatibility with a complete Kollmorgen motion system. For OEMs and machine builders, this can reduce engineering time, simplify spare-part planning and make commissioning more predictable.

SFD-M batteryless multi-turn absolute feedback

One of the most important features of Kollmorgen Essentials servo motors is the integrated SFD-M feedback device. It provides multi-turn absolute feedback without the need for battery backup. This helps avoid maintenance issues related to battery replacement and allows the system to retain absolute position information even when power is removed.

SFD-M feedback also supports plug-and-play parameterization with compatible Kollmorgen drives. The motor can store relevant motor data, allowing the drive to recognize the motor and simplify setup. This is important for machine builders who want faster commissioning and a more standardized motion system.</ p>

Main features of Kollmorgen Essentials Servo Motors

• Power range from 200 W to 4 kW for standard industrial servo axes.
• IEC frame sizes from 58 mm to 138 mm for easier mechanical integration.
• SFD-M batteryless multi-turn absolute feedback for reliable position information without battery maintenance.
• 3000 rpm rated speed with maximum speed up to 6000 rpm depending on the motor model.
• 120, 240, 400 and 480 VAC winding options</ strong> for global machine designs.
• Continuous stall torque range from 0.74 to 17.4 Nm</ strong> across available motor combinations.
• Optional integrated 24 VDC brake for vertical axes or holding applications.
• Flexible shaft key kit for smooth or keyed shaft coupling configurations.
• Plug-and-play compatibility with Kollmorgen Essentials servo drives.
• IP54 standard protection with optional field-installable IP65 shaft seal kit.

When to choose Kollmorgen Essentials servo motors?

Kollmorgen Essentials is a strong choice for machine builders who need a practical, modern and cost- effective servo motor family for common industrial motion axes. It is well suited for applications where standardization, availability, simplified setup and predictable integration are more important than highly customized motor options.

• Packaging and converting machines;
• Automated handling and indexing axes;
• Material feeding and positioning systems;
• Assembly machines and production equipment;
• Light and medium-duty machine automation;
• OEM machines requiring standardized servo axes;
• Retrofit projects where IEC mounting and simple integration are important.

Essentials Servo Motors and Essentials Servo Drives

Kollmorgen Essentials servo motors are designed to work as part of the Kollmorgen Essentials motion system. When combined with Essentials servo drives, feedback cables, power cables and the correct drive configuration, the result is a matched servo axis that is easier to select, wire and commission.

This is important because a servo motor should not be selected as an isolated component. Motor torque, speed, feedback type, drive current, supply voltage, braking needs and mechanical load must be evaluated together. Inobalt helps customers select the complete motor and drive combination for the real machine requirement.

Kollmorgen Essentials or AKM / AKM2G?

Kollmorgen Essentials is best suited for standardized machine axes where value, IEC mounting, fast integration and system simplicity are the main priorities. It gives machine builders a practical servo platform for many common industrial applications without unnecessary complexity.

AKM servo motors remain a strong choice when broader configuration flexibility is required. AKM2G is more suitable for high-performance applications where maximum torque density, compact design and advanced 2G Motion System performance are important. For this reason, Essentials, AKM and AKM2G should be selected according to the real motion requirement, not only by motor power rating.

Mechanical integration and shaft flexibility

Kollmorgen Essentials servo motors use industry-common IEC mounting, which makes them easier to integrate into standard machine designs and replacement projects. The available frame sizes allow designers to cover many common servo axes without creating unnecessary mechanical variation across the machine platform.

The shaft key kit gives additional flexibility during installation. Depending on the coupling and mechanical design, the same motor concept can be adapted for smooth shaft or keyed shaft configurations. This is useful for OEMs who want to reduce inventory complexity while keeping mechanical options open for different machine variants.

Brake option and vertical-axis applications

For vertical axes or holding applications, Kollmorgen Essentials servo motors can be specified with an integrated 24 VDC brake. A brake is typically considered when the load must be held in position when power is removed, when the axis is vertical, or when additional holding security is needed for the mechanical system.

The brake should be evaluated together with the complete axis design. Load mass, screw pitch, gearbox ratio, holding torque, safety requirements and control logic all influence whether a brake is required and how it should be integrated.

How to select the right KEM servo motor

Correct motor selection starts with the machine mechanics and motion profile. Important parameters include continuous torque, peak torque, required speed, acceleration, load inertia, duty cycle, mounting dimensions, brake requirement, supply voltage and drive compatibility.

For accurate selection, it is also important to evaluate the complete axis: gearbox or belt drive, ball screw or linear mechanism, coupling, load mass, friction, vertical or horizontal orientation, safety factor and control architecture. In many cases, the right motor is not the largest motor, but the motor that is correctly matched to the load and drive.

Inobalt support for Kollmorgen Essentials selection

Inobalt helps customers in Lithuania, Latvia and Estonia select Kollmorgen Essentials servo motors, matching servo drives, cables, braking options and related motion system components. We can help evaluate whether Essentials is the right motor family for the application, or whether AKM, AKM2G, AKMH, AKME or another Kollmorgen motor family would be more suitable.

If you are designing a new machine or modernizing an existing axis, send us the required torque, speed, load inertia, motion cycle, supply voltage, mounting limits and control architecture. We will help select the correct Kollmorgen motor and drive combination.