Water-cooled electric motors | compact, powerful, quiet
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If the installation space is small and at the same time a high drive power is required, are water-cooled electric motors the drive of choice. They are very efficient and tend to be more efficient than air-cooled motors, as the latter generate far more heat and friction losses. In addition, water has the best thermal conductivity coefficient. We present to you below New developments from the field of water-cooled electric motors.
Contents
- Modular servo motor with integrated water cooling
- Induction, DC or servo motors in stainless steel
- Compact quiet water-cooled electric motors
- Why water-cooled electric motors are great - video
- Water-cooled synchronous motor with 60.000 Nm torque
- Smart domestic waterworks with whisper-quiet water-cooled motor
- Water-cooled 600 kW compressor motor
- Water-cooled high-torque motor with an axle height of 560 mm
- Heavy-duty torque motors with peak torques of up to 5400 Nm
Modular servo motor with integrated water cooling
12.12.2023/8300/XNUMX | The AMXNUMX servo motor series expands this Beckhoff Portfolio includes a modular motor series with integrated water cooling. Based on this efficient cooling, an extremely high power density is achieved: nominal outputs of up to 40 kW possible. Compared to comparable convection-cooled ones Engines the standstill torque increases threefold.
Induction, DC or servo motors in stainless steel
30.01.2023/XNUMX/XNUMX | Servo motor and DC motor from Groschopp is now also available in stainless steel case. Depending on the cooling concept used, the user achieves an extremely high output. With water cooling they achieve significantly higher values compared to other stainless steel motors. The servo motor ESK80-8, Silver Line series, water-cooled, achieves 2600 W at a speed of 6000 rpm-1.
Compact quiet water-cooled electric motors
12.01.2022/XNUMX/XNUMX | The new water-cooled electric motor series is compact, powerful, light and quiet BEN Buchele Motor Works GmbH. The new standard series of water-cooled electric motors includes size 71 to size 315. Water-cooled motors are very compact and still offer high performance.
The new standard series of water-cooled electric motors is used, for example, in smaller ones yachts and patrol boats. You benefit from the lower weight of the engine. In addition, water-cooled engines are many times quieter than an air-cooled machine.
In addition to ship drives, the applications are very diverse and are always in demand when one small size with high performance is needed. Winch drives such as anchor or mooring winches are also possible. Water-cooled electric motors are also suitable for test benches where low noise pollution is important for the operator.
IES2 low voltage motors in the power range of up to 200 1600 kW
Water-cooled electric motors also emit hardly any heat. This makes them well suited for use in air-conditioned rooms such as laboratories where temperature must be maintained.
Manufacture approach: Each motor is a one-off
The manufacture approach characterizes the new product line. “Each engine is made specifically for the customer's application. Therefore, we attach great importance to intensive consultation in advance. We only start production once the specification has been established,” explains Stefan Kunzmann, Head of Design at BEN Buchele.
What is new is that, despite all the individuality, a series with standard sizes has now been defined as a guide. “Nevertheless, you have to look at each engine as a one-off, which we still do specially tailored to customer requirements", says Stefan Kunzmann. This also includes the special version, which can meet individual requirements from the standstill heating to the built-in backstop. For more powerful frequency converter-controlled motors, the manufacturer has provided current-insulated storage as standard.
Explosion-proof motors and special motors with high efficiency
The water-cooled engines are made of steel. Although gray cast iron housings are often common, the steel version is more flexible, cheaper and more durable in terms of external environmental influences. The painting of the engine is matched to the customer applications, some of which are subject to specific standards. For example, salty sea air requires a different coating than, for example, certain chemicals in sewage treatment plants or exhaust gases in tunnels.
The water-cooled engines also offer a multi foot attachment. This enables eight screwing positions, each at a 45° angle. As a result, the terminal box is always optimally accessible, depending on the installation situation. The coolant connections are located axially on the non-drive side. This allows the terminal box layer to be turned to any position without the connections getting in the way.
Why water-cooled electric motors are great - video
17.12.2020 | Matthias Beetz from the Baumüller Academy explains why water-cooled servomotors are ideally suited for use in textile machines, packaging machines or plastics machines, among other things
Water-cooled synchronous motor with 60.000 Nm torque
07.05.2020 | Baumüller offers many of its electric motors with water cooling. With a new synchronous motor, the drive specialist has now added torques from 2 to 325 Nm to its DST 60.000 series. But even with all other electric motors with water cooling, the very compact design is more powerful than that of the fan-cooled motors. The water cooling is now available for almost the entire portfolio of the manufacturer.
Smart domestic waterworks with whisper-quiet water-cooled motor
12.12.2019/2/XNUMX | Expanded after the successful introduction of "ScalaXNUMX" three years ago Cranendfos the program for the domestic waterworks Scala1. The compact dimensions, the whisper-quiet water-cooled motor and the simple operating concept were adopted. The Scala1 has the outdoor protection class IPx4D (splash water from all directions). In this way, the domestic waterworks can be installed outdoors directly and without additional housing.
Water-cooled 600 kW compressor motor
16.10.2019 | Menzel electric motors has to drive a pistonkompressors manufactured an optimally adapted motor at increased ambient temperatures. The special version was designed on behalf of a long-standing Italian customer from the chemical industry with cooling type IC 81W (air-water heat exchanger) and protection class IP55. Two oil coolers were installed directly on the engine housing to cool the bearings assembled.
The 600 kW engine has a previously air-cooled one Motor with protection class IP23 replaced. Thanks to the new design, there will be no more problems with dirt inside the engine in the future. Perfect functioning is continuously guaranteed, especially in summer at ambient temperatures well above 40 °C. In addition, the maintenance effort will be significantly reduced.
Menzel's range of modular slip-ring motors Allows quick, application-specific adaptation of cooling and protection types. Various accessory options are available. The motor of the MEBSSW series was also adapted to the electrical and mechanical data of the existing motor. It can be installed quickly and without modifications at the installation site. The engine has a rated speed of 491 min-1 and a rated voltage of 3000 V. The water-cooled electric motor is compact, lightweight, reliable and quiet.
Water-cooled high-torque motor with an axle height of 560 mm
19.09.2018/XNUMX/XNUMX | With the current expansion of its engine portfolio Baumüller his own axle height record. With a shaft height of 2 mm, the new high-torque motor DST560-560 is now the largest series motor offered by the manufacturer and pioneer of direct drive technology.
With a maximum Torque of up to 80.000 Nm are the Engines for use in different industries and plants such as for servo presses, extruders and shredders. Even at low speeds, the water-cooled drives offer very high torques and very good concentricity properties, a robust design and a smooth housing surface that is not susceptible to dirt.
Especially for the use in ships the DST2-560 are also optionally available with so-called wing mounts. These feet, located diametrically on the outside diameter of the motor, facilitate integration into the ship's structure. In addition, the high-torque motor has already been prepared for approval according to Lloyd's Register and DNV GL. With efficiencies of 96% over a wide speed setting range, the DST2-560 motors are very energy efficient.
Heavy-duty torque motors with peak torques of up to 5400 Nm
08.11.2017 | Hiwin has developed a new high-speed, water-cooled torque motor for particularly demanding applications based on the proven TMRW series. The reduced eddy current losses increased the upper speed limit.
Nothing of this can be seen on the outside of the stator of the new TMRI direct drives. As a rotor, however, the slotted, high-performance internal rotors have an assembly with a instead of the previous homogeneous steel part laminated magnet carrier downtown. Thanks to the reduced eddy current losses, the previously applicable upper speed limit could be broken.
Because the permanent magnets in the rotor were arranged in such a way that the magnetic flux density increases, the water-cooled electric motor also achieves a new level of torque. Compared to the previous TMRW series, it therefore offers higher speeds, greater torques and a better efficiency.
Frequency converter innovations: decentralized, networked, with app
The TMRI is available with external diameters from 230 to 565 mm and peak torques of up to 5400 Nm in various standard windings for high torque and different speeds. Optionally, the motors are also included ready-to-connect steel cooling jacket available. Their area of application includes printing machines, transport systems, lathes and milling machines Automation services and applications that require extremely accurate positioning.
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Angela Struck is editor-in-chief of the development scout and freelance journalist as well as managing director of Presse Service Büro GbR in Ried.