SPS 2026 will take place in Nuremberg, Germany, from 24 to 26 November, bringing together manufacturers of industrial automation, motion control, servo motors, and drive systems. For engineers working on industrial motors, several exhibitors have already announced products worth examining before the show.

AMKmotion plans to introduce its DIP synchronous servo motor, while Bosch Rexroth will showcase its expanded ctrlX DRIVE portfolio. Kollmorgen, SIEB & MEYER, and Baumüller will also present technologies ranging from multi-axis motion control to high-speed and high-power drive systems. For motor designers, these exhibits offer a closer look at how servo motor performance, cooling, and operating conditions relate to electrical steel requirements.

1. SPS 2026: Key Exhibitors and Motor Technologies to Watch

Bosch Rexroth: ctrlX DRIVE and Integrated Motor Control

Hall 7, Booth 450

Bosch Rexroth will present updates to its ctrlX AUTOMATION platform, including an expanded ctrlX DRIVE motor and drive portfolio. Its SPS 2026 preview also introduces an Economy Line for applications that need core servo functions without more specialized control features.

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Bosch Rexroth MS2N synchronous servo motors, available with multiple cooling configurations.- Image source: Bosch Rexroth

The company's MS2N synchronous servo motors provide a useful reference for comparing cooling methods and their effect on available torque. According to the Bosch Rexroth MS2N product information, the family includes self-cooled, forced-ventilated, and water-cooled versions. The MS2N07 family lists the following standstill torque ranges:

8.2–38.2 Nm with self-cooling
16.3–49.5 Nm with forced ventilation
25.0–83.0 Nm with water cooling

The torque ranges apply to different MS2N07 configurations under the manufacturer's specified thermal conditions. MS2N is an existing motor family, included here to illustrate the difference between cooling arrangements.

AMKmotion: DIP Servo Motors and Higher Power Density

Hall 4, Booth 210

AMKmotion has announced several motor and drive technologies for SPS 2026, including its newly developed DIP synchronous servo motor, SKT motor solutions, and iC servo converter.

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AMKmotion DIP synchronous servo motor with a compact motor housing. - Image source: AMKmotion

The DIP motor is available with convection cooling or liquid cooling. According to AMKmotion's exhibition announcement, the new design can deliver up to 30% greater acceleration and up to 32% higher maximum torque compared with selected conventional solutions. The company also reports efficiency of up to 97%.

AMKmotion also attributes up to 20% more torque at the same current to its optimized magnetic circuit. The exhibition announcement does not identify the electrical steel grade used in the DIP motor.

AMKmotion's SKT 10 motor is also worth examining. Its application-specific winding optimization is intended to reduce operating current and thermal load during continuous operation. At the exhibition, comparing the DIP's continuous torque curves under convection and liquid cooling would provide a clearer picture of how the two configurations perform at higher operating speeds.

Kollmorgen: Multi-Axis Servo Systems and Precision Motion

Hall 3, Booth 360–368

Kollmorgen will join other Regal Rexnord motion brands at SPS 2026, presenting servo drives, motors, linear motion systems, and machine automation technologies.

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Kollmorgen AKD2G servo drive shown with an AKM2G servo motor. - Image source: Kollmorgen

One of its announced exhibits is a gantry demonstration combining the Kollmorgen Essentials Motion System with AKD2G servo drives. The axes will operate in synchronization through EtherCAT, while a shared DC bus allows energy exchange within the drive arrangement.

The company's SPS 2026 exhibition announcement also highlights its broader motion portfolio.

The gantry setup provides an interesting example of how motor operating conditions can differ within the same machine. One axis may repeatedly accelerate and decelerate, while another carries a more constant load. These differences can affect winding temperatures and loss distributions even when similar motors are used.

The demonstration also provides an opportunity to examine synchronized motion control and shared DC-bus operation. Kollmorgen's broader portfolio includes frameless TBM2G motors for compact motion applications.

SIEB & MEYER: SD4x Drives for High-Speed Motors

Hall 4, Booth 230

SIEB & MEYER will present its complete SD4S drive range alongside SD4B and SD4M products at SPS 2026.

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SIEB & MEYER SD4S frequency converter for high-speed motor applications. - Image source: SIEB & MEYER

The company's September 2026 announcement confirms that SD4S models cover 0.8–32 kW, while SD4B products serve lower-power applications between 0.3 and 1.0 kW. The exhibition will also feature a customized SD4M drive rated at 350 kW.

The SD4x family targets high-speed motor applications, including machine tools, grinding equipment, and other machinery requiring high electrical output frequencies. SIEB & MEYER reports output frequencies of up to 6,000 Hz for the drive generation.

This specification is relevant to motor designers working with high-speed applications, but the drive's maximum output frequency should not be confused with the fundamental electrical frequency of every connected motor. In a synchronous motor, electrical frequency depends on mechanical speed and pole count:

Electrical frequency (Hz) = Motor speed (rpm) × Pole pairs / 60

For example, a four-pole synchronous motor operating at 30,000 rpm has a fundamental electrical frequency of 1,000 Hz. Core loss measurements at 50 Hz alone cannot characterize electrical steel performance at that frequency.

Baumüller: High-Power Servo Drives and Industrial Duty Cycles

Hall 1, Booth 560

Baumüller will present new high-power servo drive technology within its b maXX 6000 family. According to its official SPS 2026 exhibitor information, the new DC-link-connected drive solutions target applications such as electric injection molding machines, extruders, and forming equipment.

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Baumüller DSC2, DST3 and DS4 motor families, including the DS4 synchronous motor. - Image source: Baumüller

These applications can place very different demands on servo motors. An injection molding machine, for example, may require high torque during particular stages of its operating cycle, followed by periods of lower demand. Baumüller's DC-link architecture allows energy management across connected axes rather than treating each drive as an isolated system.

Its 2026 exhibition preview also highlights the new DS4 three-phase synchronous motor, which the company describes as 20% more compact than its predecessor.

2. More Servo Motor and Drive Manufacturers at SPS 2026

Siemens, ABB, Lenze, Nidec Drives, WITTENSTEIN, and Beckhoff are also among the automation and motion-control exhibitors to watch.

Manufacturer	SPS 2026 focus	What motor designers can examine
Siemens	Industrial AI, digital twins, and automation; Hall 11	Integrated drive systems and mobile robotics applications
ABB	Machine automation, drives, and precision servo motion	Coordination between control systems and servo axes
Lenze	i950 DC-Link servo drive and multi-axis motion; Hall 7, Booth 391	Overload capability, energy sharing, and drive integration
Nidec Drives	Digitax HD servo drives; Hall 4, Booth 248	Servo control, current ratings, and feedback compatibility
WITTENSTEIN	Precision drive systems and mechatronic integration; Hall 4, Booth 221	Compact integrated motion systems and positioning applications
Beckhoff	PC-based control and integrated motion technologies; Hall 7, Booth 406	Multi-axis synchronization and motion system architecture

Lenze plans to demonstrate the i950 DC-Link servo drive, with a published overload capability of up to four times its relevant rating. The figure refers to the drive rather than the connected motor's continuous torque capability.

Nidec Drives' Digitax HD preview provides a power range of 0.25–7.5 kW and continuous drive current ratings between 1.5 and 16 A.

Siemens and ABB are emphasizing broader automation and motion control architectures.

The official SPS exhibitor search is the appropriate place to check stand locations and additional participating manufacturers before visiting.

3. Servo Motor and Drive Specifications: A Pre-Show Comparison

The exhibitors have published different kinds of technical data. Some provide motor torque or cooling information, while others emphasize drive power, current, or frequency capabilities.

The table below separates these specifications rather than treating them as directly comparable motor performance ratings.

Manufacturer and product	Published specification	Cooling or operating information	Details still worth checking
Bosch Rexroth MS2N07 motor family	Standstill torque ranges vary by motor version and cooling method	Self-cooling, forced ventilation, or water cooling	Continuous torque at operating speed and exact motor variant
AMKmotion DIP servo motor	Up to 97% efficiency; manufacturer-reported maximum torque improvement of up to 32%	Convection cooling or liquid cooling	Continuous torque-speed curves and comparison test conditions
Kollmorgen AKD2G / motion systems	Multi-axis synchronization and shared DC bus demonstrated	Operating conditions depend on the connected motor	Motor-specific speed, torque, and temperature data
SIEB & MEYER SD4x drives	SD4S: 0.8–32 kW; drive generation supports frequencies up to 6,000 Hz	Designed for high-speed motor applications	Actual motor operating frequency, speed, and thermal limits
Baumüller b maXX / DS4	High-power drive architecture; DS4 motor reported as 20% more compact than its predecessor	Application-dependent duty cycles	Continuous motor rating and cooling arrangement

Source basis: manufacturer product information and SPS 2026 pre-event announcements available as of 11 November 2026. Motor, drive, and system specifications refer to different configurations and should not be interpreted as a product ranking.

Continuous Torque Matters More Than a Peak Figure Alone

Peak torque ratings do not indicate how long a motor can maintain a particular load. Continuous torque-speed curves are more useful when comparing motors intended for sustained operation.

AMKmotion's DIP and Baumüller's DS4 both highlight improvements in motor performance or compactness, but their published figures describe different characteristics. A direct comparison of continuous torque would require model-specific curves under comparable cooling conditions.

Copper losses depend on winding current and resistance, while stator core losses depend on magnetic operating conditions and electrical steel characteristics.

4. Electrical Steel Considerations for High-Performance Servo Motors

The exhibition previews discussed above do not identify the NGOES grades used in the featured motors. The relevant material questions concern core losses at higher electrical frequencies, lamination thickness, and magnetic performance.

Higher Frequency Changes the Core Loss Comparison

NGOES is widely used in laminated stator cores because its magnetic properties are suitable for rotating electrical machines.

When comparing electrical steel grades, engineers commonly use core loss values measured under specified magnetic flux density and frequency conditions.

A grade's performance at 50 Hz does not establish its losses at 400 Hz, 1,000 Hz, or another operating frequency.

A study published in Frontiers in Materials examined non-oriented electrical steel losses across frequencies ranging from 50 Hz to 1,000 Hz under controlled test conditions. The measurements demonstrate how strongly frequency can affect material losses.

Lamination Thickness and Motor Efficiency

Thinner electrical steel can reduce eddy-current losses at higher frequencies, although the actual benefit varies with grade and magnetic operating conditions. For stamped motor laminations, thickness also affects handling, stacking, and dimensional control during production.

Grade comparisons should therefore use loss data measured at relevant frequencies and flux densities.

What Motor Designers Should Request from Steel Suppliers

Before selecting an electrical steel grade for a new servo motor design, the following information is particularly useful:

Material information	Relevance to motor design
Core loss at relevant frequencies and flux densities	Estimates material losses under representative magnetic conditions
Electrical steel thickness and thickness tolerance	Influences eddy-current losses and lamination manufacturing
Magnetic polarization and permeability data	Supports electromagnetic design and magnetic circuit evaluation
Coating and insulation characteristics	Supports interlaminar insulation and manufacturing compatibility
Coil width, dimensional tolerance, and traceability	Supports lamination production and material identification

HWHG supplies non-grain-oriented electrical steel (NGOES) coils for motor manufacturing, with grades and thicknesses suited to different magnetic performance requirements. Its soft magnetic material portfolio also includes iron-based amorphous alloys and cores, with amorphous materials for EV motor stators among the applications highlighted at the 2026 CISCE.

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HWHG amorphous motor core samples featuring different stator geometries, slotted cores, and laminated structures.

5. What to Check During SPS 2026

The published previews provide useful starting points, but several technical questions are better answered with the manufacturers' full product documentation or engineering teams.

Questions Worth Asking at SPS 2026

AMKmotion: Are continuous torque-speed curves available for both DIP cooling versions, and under what test conditions were the published improvements measured?

SIEB & MEYER: What output frequencies and switching configurations are used in the high-speed motor demonstrations, and is motor loss data available?

Baumüller: How does the new DS4 motor's continuous operating capability compare with its predecessor under equivalent cooling conditions?

After SPS 2026

After SPS 2026, this comparison can be updated with confirmed motor specifications and manufacturer documentation, particularly continuous torque-speed curves, cooling conditions, and measured operating data. New figures should be identified by model and test conditions.

SPS 2026 Servo Motors and Drives: Key Exhibitors and Technologies to Watch

IE4 vs IE5 Motors: Efficiency Differences and Electrical Steel Requirements

How to Identify Manufacturing-Related Core Loss Increases in Motor Stators

Electrical Steel for Servo Motors: Magnetic Requirements and Stator Core Performance

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