Professional 7kv Motor Manufacturer in China

Longbank is the highest manufacturing industry for 7kv motors in China. The accumulation of advanced features in the device boosts efficiency and maintenance for an extended period.

  • Easy to manage and install
  • Robust features with a high proficiency rate
  • Produces slight vibration on working
  • Anti-condensational heaters protect the device from moist
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Custom 7kv Motors

Longbank fabricates a 7kv Motor with marginal magnetic ends in north and south directions. The output of the 7kv motor is 5.5kw. The motor shows a speed of 3600rpm with a weight of 98kgs. The device’s advanced features increase its application in cranes, conveyors, fans, compressors, and mixers, at the industrial working for mining, drilling, and turning.

Longbank is a sterling manufacturing unit in China. All of the company’s products are hard-wearing and effective in their working. Customers can also adjust the custom features in the motor of their choice. Our expert engineers need only the specifications, and we shall manufacture them according to your necessity.

Longbank verbalizes the 1kv motor that turns at the rate of 3000rpm when the frequency is 50Hz. Application in the pumps and washing machines.

2kv motor rotates with the succession of 1450rpm at 50Hz and also comprises an E1 efficiency system. IP Protection technology improves the reserve of devices.

3kv is asynchronous with an energy budget of 185 to 3550kw. Shows multiple ways of protection technology and is present in the form of 50Hz or 60Hz.

4kv motor produces the output of 4000w, and ISO certified compact body design. Shows applications in the cranes and crushes.

5Kv motor is asynchronous, extracting the power of 6.5 to 1000KW at 50Hz and showing the rotation of 1500rpm.

6Kv motor is asynchronous that yields the power of 185KW to 2500KW at 50Hz. Three-phase machine with IEC verified.

Why Choose Longbank 7kv Motors?

Cooling and Ventilation
Cooling and Ventilation

Longbank manufactures 7kv Motors that yield a high-efficiency rate. For the optimum temp of the device, the fan is inserted inside the device’s box, which expels the metabolic heat of the device and keeps it working smoothly.

Quality Assurance
Quality Assurance

Longbank holds the unbeatable quality of 7kv due to its efficient features. Being an ISO-certified brand, the device has premium quality features that maximize its proficiency. The device’s body parts contain aluminum, enhancing its durability and authenticity. The machine includes details of pure quality that improve resistivity.

Optimal Features
Feature Optimization

Longbank enterprise products contain better-quality features such as working in an environment-friendly mode, slight vibration when working start, portable, capable of working for an extended period, and easy to manage. Customers can also add conventional features to the device.

Insulation Class
Protective Insulation

Longbank coats the products with the casing of iron that acts as a protective shield and guards the device against deterioration. It also contains IP fortification expertise with anti-condensational heaters that sentinel the motors from environmental fluxes.

What are the 7kv Motors?

7kv Motor is a three-phase induction motor that yields energy of 5.5kw. The asynchronous motor rotates with a speed of 3600rpm and is portable with a weight of 98kg. ISO certified product and applicable in conveyors, mills, fans, mixers, compressors, pumps, crushes, and cranes.

For the same motor rotation, the propeller is adjusted in the device. The durable and hard covering of the machine protects it from environmental effects. Anti-condensational heaters also protect it from humidity.

Construction and Structure

Construction of 7kV Motor

Irrespective of various IEC low voltage motors, Longbank is manufacturing high voltage motors that can complete their tasks diligently. These motors are the YE2, YVFE2, YBX3, and YE3.

7kV motor comprises several components that play a collective role in determining the motor’s efficiency. Any disturbance in the smooth function of its members can disturb the motor’s performance. Following are the few essential components of a 7kV engine:

The Bearing System:

The bearing system of the 7kV motor can be unconfined or jointed. The type of grease determines the lifetime of each bearing system. The primary role of the bearing system is to maintain a particular distance between the stator and the rotor while supporting the rotating objects.

Grease Life and Re-Greasing Interval:

Lubricants play an essential role in calculating the lifespan of bearings. This greasing can be done frequently or once in the whole life of the motor. Frequent lubrication is much better as it improves the lifetime of the bearing.

Innumerable factors play their part in determining the overall productivity of the motor. It includes external temperature, operating conditions of the motor, the speed of the motor at varying frequencies, the bearing size, and the amount of load.


The toing and froing of the rotor generate vibration. This vibration is maintained within a narrow limit; otherwise, it exerts more pressure on the axial and the radial side of the bearings leading to loss of motor productivity. These rotors contain metal sheets that impart their role in magnetization. These armatures are sustained by half-key.

Anti-Condensation Heater:

Exceeding a temperature over a specific limit can damage the motor’s windings which play a particular role in the stator. This condensation of windings can be prevented by installing the anti-condensation heaters inside the motor. These heaters start working after the motor’s working. Without these heaters, the motor’s efficiency is lowered to a great extent.

Rated Output:

You can attain the maximum output of the 7kV motor by adjusting its controlling factors, including temperature and height above sea level. The temperature should be maintained between -15oC to 40oC while its altitude should not exceed 1000m.

Voltage and Frequency:

7kV motors offer two classes of motors: group A and group B. Both these groups of motors are IEC verified. Group A motors’ voltage and frequency variations are ±5 % and ±2%, respectively. Similarly, the group B’s voltage and frequency fluctuation are ±10% and +3% / -5% respectively. Group A’s motor can perform well even under high temperatures.

Structure Features

7kV motor owns several features which ensure the better performance of the motor. A few of these features are enlisted here:

  • The lifespan of permanently lubricated motors is 20,000 hours.
  • The re-greaseable motors have twice the lifetime.
  • The increased temperature of the motor lowers the bearing’s lifetime by one-half.
  • The power and speed of the motor vary depending on the model type.
  • The potential difference of this motor is 7kV.
  • The rigid frame of the motor enhances its mechanical strength and outlook.
  • The body structure of the radiator is quite vertical-horizontal.
  • Energy losses in the motor are maintained through laminations.
  • The stator and rotor’s body material act as magnets due to the flow of alternating current.
  • The insulated electromagnetic wire prevents damage to the motor’s parts.
  • VPI technique improves the electrical properties of the motor.
  • External and internal fans play their role in the ventilation. An eternal fan minimizes the noise of ventilation.
  • The internal fan forwards the heat towards the inner heat removing path, while the exterior fan forwards the heat towards the base shell. These fans’ primary purpose is to keep the motor’s average temperature.
  • Aluminum or copper inside the rotor produces magnetic poles.
  • The G1.0 level calculates the air space between the rotor and the stator.

Customized 7kv Motors supplier in China

Longbank is professional industry for engineering 7kv motors according to the present age. Customized features of the device increase proficiency and durability. This motor has wide applications in cranes, conveyors, compressors, mixers, fans, and washing machines.

Longbank has its checking spot for the manipulation of the performance of the machine. Such as testing the endurance of the motor and analyzing the machine’s and hub motor systems’ automation systems. All products, especially 7kv Motor, are ISO verified and got many other authorizations such as ROHS, CCC, UL, TUV, GS, CE, and many different certifications. All of these represent the quality of products.

The advancement in the features of the 7kV motor increases its demand worldwide. Longbank’s 7kV motor offers several advantages, which are as follows:

  • The body of the 7kV motor makes it durable and beautiful.
  • You can purchase this motor at a suitable price by placing your order online.
  • 7kV motor is available in various models with varying properties.
  • You can ask Longbank’s team to manufacture your product according to your requirements.
  • IP protection technology prevents the motor from corrosion.
  • Several types of sensors adjust the smooth function.

The increasing demand for a 7kV motor is because of its multiple applications. A few of its uses are written here:

  • Several industries, including petrochemical, pharmaceutical, cement, paper, and many others, are using these 7kV motors to complete their tasks in less time.
  • These motors are highly preferred where there is a need for low noise, high efficiency, and harsh working conditions.
  • Many agricultural areas install these motors to harvest, pull water, and prepare animal food.
  • You can run these motors in wind turbines.
  • Many ships are designed with these motors to run their heavy machinery.
One-Stop 3-Phase Squirrel Cage Induction Motor Solution in China
One-Stop 7kv Motor Solution in China

Longbank has been innovatively constructing the 7kv motor since 1972. Our company is ISO-certified and manufactures many motor products yearly to serve the whole world. Our company contains highly talented and hardworking engineers and workers that construct the product according to the client’s interest.

  • “We have purchased the product of 7kv Motor from Longbank. It was my incredible experience with this device that gave the extreme output. Thanks a lot!”

  • “Longbank agreements the quality of the product. It enables its customers by maximum productive rate and quality assurance.”

  • “7kv Motor has an attractive physical appearance. The machine’s design is first-rate, from its initial part to its working. Its design converses with its functional property. Thanks a lot, Longbank.”

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