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References low-voltage motors

1,800kW drive for an induced draft fan

EMZ built a low-voltage motor with 1,800kW for a sinter dedusting fan of a steel plant in North Rhine-Westphalia.

Usually motors of this size are designed for high voltage (e.g. 6kV). In order to regulate the volume flow of the induced draft fan, the rotational speed of the 1,800kW motor is controlled by a frequency inverter. Since a 690V frequency inverter is significantly cheaper than 6kV inverter, the motor was specifically designed for the Voltage of 690V.

3-phase AC-squirrel-cage-motor:

Brand: EMZ | Power: 1800 kW | Voltage: 690V | Speed: 494 rpm. | Degree of protection:: IP55 | Cooling: IC611 | Weight: 14.300 kg

Motors for district heating pumps

EMZ supplies two squirrel‐cage motors as a pump drive for a German coal power station.

The motors with a capacity of 1,300 kW each are designed for frequency‐converter operations.

Squirrel-cage motor:

Manufacturer: Siemens | Power: 1.300 kW | Voltage: 690 V | Speed: 1.500 rpm. | Protection class: IP55


Delivery of a 315 KW motor for an induced-draught fan in the metal industry

EMZ supplied a motor to a German fan manufacturer for an induced-draught fan for a plant in China.

To control the volumetric flow of the induced-draught fan, the rotational speed of the 315 kW
motor is controlled by frequency converters.

Three-phase low-voltage motor:

Brand: EMK | Output: 315 kW | Voltage: 380 V | Speed: 2.980 rpm. | Safety class: IP55 | Cooling system: IC411 | Weight: 1.850 kg


Motors for fan manufacturers

EMZ delivered a 90 kW motor to a renowned fan manufacturer in France.

The motor is operated on the frequency converter so that the air flow can be controlled.
To guarantee the faultless operation of the drive, it was equipped with an electrically-insulated bearing
in our own workshop.

Asynchronous low-voltage squirrel-cage rotor:

Brand: EMK | Output: 90 kW | Voltage: 400 V | Speed: 1.500 U/min. | Safety class: IP55 | Efficiency: IE2 | Weight: 670 kg


EMZ supplies three-phase asynchronous motors to a German manufacturer of suction dredgers

The motors with a power range of 250 to 400 kW are used as the main drive for suction pumps for gravel extraction.

Owing to their open use on floating pontoons, the motors are constantly exposed to all types of weather
conditions. Especially in winter with rain, snow and ice. The robust cast iron EMK motors meet the requirements for this application. 

Three-phase asynchronous motor:

Brand: EMZ - EMK | Output: 250 kW | Voltage: 400/690 V | Speed: 1.485 U/min. | Safety class: IP55


Motors for a pump-test bench

EMZ delivered the motors for a pump-test bench to a German pump manufacturer. 

The pump-test bench was assembled in Germany.

Three-phase standard motors, 2 units:

Brand: EMZ | Output: 132 kW | Voltage: 400 V | Speed: 995 rpm. | Safety class: IP55 | Weight: 1.150 kg

Three-phase standard motor, 1 unit:

Brand: EMZ | Output: 18,5 kW | Voltage: 400 V | Speed: 1.470 rpm. | Safety class: IP55 | Weight: 204 kg


Motors for crushing plants

EMZ supplied the main drive for a shaft impactor to a German crushing-plant manufacturer.

The location is a quarry in southern Germany.

Three-phase high-voltage squirrel-cage rotor:

Brand: EMZ | Output: 200 kW | Voltage: 400 V | Speed: 1.485 U/min. | Safety class: IP55 | Weight: 1.331 kg


Motors for crushing plant

EMZ supplied the main drive for a mobile crushing plant to a German crushing-plant manufacturer.

The mobile crusher is in operation in France.

Three-phase standard motor:

Brand: EMZ | Output: 90 kW | Voltage: 400 V | Speed: 1.480 U/min. | Safety class: IP55 | Weight: 672 kg


Delivery of a 160 kW low-voltage motor

EMZ supplied various EMK motors as drives for high-pressure pumps to an internationally-operative pump manufacturer.

Three-phase low-voltage squirrel-cage rotors:

Brand: EMK | Output: 160 kW | Voltage: 400 V | Speed: 1.490 rpm. | Safety class: IP55 | Efficiency: IE2 | Weight: 1.200 kg


Delivery of a 315 kW low-voltage motor

EMZ delivered an EMK motor to a German machine and plant manufacturer for the German construction materials industry.

The engine was mounted as the main drive on a rotary crusher and successfully put into operation in a quarry.

Three-phase low-voltage squirrel-cage rotor:

Brand: EMK | Output: 315 kW | Voltage: 400 V | Speed: 1.490 rpm. | Safety class: IP55 | Efficiency: IE2 | Weight: 1.800 kg