Electric motors reimagined
Groundbreaking innovations are currently emerging in the field of electric motors. One of these is the synchronous reluctance motor – technically established, but still underestimated. Thanks to its high efficiency and low losses, it deserves much more attention.
However, the torque motor from EMF is truly revolutionary. An intelligent arrangement of permanent magnets on the shaft in combination with the stator winding creates a loss-free, backlash-free gear function – without a conventional gearbox. A gearbox without a gearbox. Unusual, but proven.
Electric motors are basically based on two physical principles: Lorentz force and reluctance force. While Lorentz force is widely known, reluctance force offers decisive advantages – especially over asynchronous motors. Reluctance motors do not require rotor currents, do not generate rotor heat and therefore operate much more efficiently. Synchronous reluctance motors achieve IE4 (Super Premium Efficiency) as standard and have a ‘cold’ rotor, which increases bearing life.
The EMF Torque Motor goes one step further: it combines the motor and gearbox in a single, wear-free system. This globally unique technology opens up completely new possibilities in terms of efficiency, precision and reliability.
The advantages of this technology, which is only offered worldwide by EMF, are sensational:
- The torque motor has the best efficiency worldwide (up to 98%), in practice savings of approx. 20% and more are achieved (this is extremely high).
- The gear function between shaft and stator rotating field is absolutely loss- and backlash-free(!) (otherwise the high efficiency could not be explained, fantastic properties for any servo application of torque motors)
- Offers the best torque-to-weight ratio, does not require cooling (IC410 only)
- Significant improvement of control characteristics in terms of position, speed and torque (improvement up to 10-fold),
- Provides the lowest torque ripple (again, a significant improvement, about 6 times),
- With all these improvements, this new motor technology can be called an all-in-one solution.
When has a technological leap in the motor sector, in so many areas, ever achieved so many improvements so clearly? When you use this motor technology (the motor range goes from 3 to 13,000 Nm), you bring the future into the present. Talk to us, you will be amazed.
Revolution in converter technology
Converter technology is also undergoing a fundamental change:
Traditional AC–DC–AC inverters are being replaced by direct single-stage AC–AC inverters.
This new technology offers decisive advantages and clear customer benefits:
- Elimination of technically complex rectification
- Higher efficiency and significantly lower energy consumption
- No capacitors → significantly longer service life
- Standard feedback of braking energy into the grid → simple and efficient
- No more braking resistors required
- More precise control behaviour in terms of speed, torque and position thanks to almost ideal sine wave formation
- Full torque even at standstill (n = 0)
The result: maximum efficiency, higher reliability, better control and noticeable energy savings.
Further information can be found under INVERTER / CONTROLLER.
We will be happy to improve your situation.