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e+a-MotorScout – searching made easy!

Online data base with integrated search function: You can define your search by entering criteria such as geometry, performance, speed and torque of the motor elements and compare them in graphics and tables.

Direct inquiry

NEW - More than 1 million acceleration cycles for IPM synchronous rotor

To investigate the fatigue strength of IPM synchronous rotors with internal magnets, e+a carried out an acceleration test and achieved more than 1 million acceleration cycles.

The test rig used for this purpose is scalable and can be used for extended investigations. Contact us, we will be happy to advise you on the choice of the right motor element for you.

Machine tool motors

Direct drives for machine tool spindles are our core business

Turning, milling, ... the best motor for your application
Compact design
High speeds
Asynchronous and synchronous motors
Prototype and series production
Over 1400 motor types to choose from
Experience since 1981

Motors for Cryogenic Applications

Expertise:

Operation of e+a rotors & stators immersed in liquid natural gas (LNG, -160 ° C) and liquid nitrogen (LN, -196 ° C)
Testing of materials for operation in cryogenic liquids
New rotor manufacturing variant developed and successfully tested.
Evaluation of increased power density in cryogenic liquids

Outrunner as motorcycle traction motor

e+a develops direct drive motorcycle traction motor
Configured as an outrunner design (rotor outside of stator)

Design challenges:

Maximize torque per weight ratio
Efficient use of small space inside a wheel
Cluster optimization of possible designs using in-house software
Short development time

Do you share our passion for innovation?

We will make develop young engineers and participate in international projects. Not only will we be on the cutting edge, but also shape the development of our industry.

More about Internships

Large size motors – up to 680mm!

New data about the serie of large size motors is now available at our e+a MotorScout (stator outer diameter from 300 up to 680mm).

Alternatively you can find the overview with all available sizes at the product documentations.

Please contact us! We would like to advise you personal on your requirements!

PM-Rotors with Interior Magnets

e+a did develop a permanent magnet motor with interior magnets.

e+a motor elements are airborne

For the all-electric aircraft e-Sling, which was developed and built as part of a student project at ETH Zurich, e+a acted as sponsor for the electromagnetic and mechanical design as well as the production of the motor elements for the aircraft propulsion system.

With a take-off power of 110 kW at 2300 min-1, the power-to-weight ratio of the air-cooled motor is 5 kW/kg.

NEW - VPA-Voltage Peak Analyser

e+a has developed the VPA-Voltage Peak Analyser measuring device to analyse the entire drive system consisting of converter, motor element and peripheral devices and is now offering:

VPA voltage peak analyser
Determination of the e+a load index for assessing the overall system consisting of inverter, motor element and peripheral devices
Supplementary training on the subject
Measurement services in the context of commissioning

e+a will be happy to advise you and provide further information if you are interested. Contact our engineers.

NEW – DblExplorer Extension – Our Digital Service

Your customised Motor Data 24/7 available.

Additional functions (improved visualisation as well as further comparison options)
New Motor Simulation Tool integrated

e+a will be happy to advise you and provide further information if you are interested. Contact our engineers.

Energy Generation

Use of turbo compressors in decentralized energy generation

Expertise:

Development of motor elements for high power applications (> 1000kW)
High-performance windings minimizing losses
Compatibility with commercial refrigerants

Motors for energy storage

Kinetic energy storage & load levelling on national or private grids due to load fluctuations:

Expertise:

Motor operation in a vacuum, typically with flywheel energy storage devices
Testing of insulation materials in a vacuum
Evaluation of optimized stator windings during vacuum operation
Calculation of power losses, especially in the rotor

Motors for Hand-held tools

Drive motors for professional hand tools, targeted for construction sites:

Expertise:

New motor concepts developed and verified
Torque, size & weight optimized
Ruggedized products produced at competitive prices

Small size motors – new series!

e+a has developed five new series for permanent magnet synchronous machines with external diameters of 13 mm to 24 mm.

Thanks to their compact construction, they can also be successfully used in medical applications.