Variable Frequency Motor

Your Professional Variable Frequency Motor Supplier

Our goal is to become your true partner in the field of high efficiency electric motor in China. Milestone Motor is one of the earliest enterprises to design, produce and promote new energy-saving Y-series motors in China. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

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Why Choose Us

Our certification: Our company has passed ISO9001 quality management system certification, ISO14001 environmental management system certification and ISO45001 occupational health and safety management system certification.

Production market: Our products are very popular in the market and are exported to countries and regions such as Germany, Argentina, Egypt and Poland.

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Advantages of Variable Frequency Motor

Precise speed regulation

The speed regulation range of the vfd ready motor is between 1:10 - 1:100, and the speed regulation accuracy is ±0.5%.

Durable

The vfd ready motor can withstand 2 - 3 times the rated load impact and has a service life of 10 - 15 years.

Low noise operation

The noise of the vfd ready motor is controlled at 60 - 70 decibels when running at full load.

Specification of Variable Frequency Motor

Description	Details
Frame material	Grey cast iron
Winding	100% pure copper
Shaft material	45 steel or 40cr
Standard	IEC & GB/T28575
Power output	0.55kW - 315kW
Pole	2, 4, 6, 8, 10
Voltage	380V/660V (customized voltage available)
Mounting construction	IEC 60034 - 7: IM B3, IM B5, IM B35, IMV1, etc.
Protection degree	All motors are designed to IP55 degree (IEC 60034 - 5) or IP65 or IP56
Insulation system	F or H
Cooling	IC416
Color	Gray or custom-made
Test	Factory test report
Rated frequency	50/60Hz
Bearing type	Rolling bearing or SKF

Features of Variable Frequency Motor

High efficiency and energy saving

The energy efficiency level of variable frequency speed motors reaches ie5, which can save up to 40% of energy consumption compared to traditional ie3 asynchronous motors.

Precise control

Our variable frequency speed motors are equipped with a 24-bit high-resolution encoder, which achieves ±0.01% speed accuracy control, so that the speed fluctuation is controlled within ±1rpm, which is particularly critical in the precision processing industry.

Wide speed range

Our variable frequency speed motor offers an ultra-wide speed range of 1:2000, which means it can achieve speed regulation from 0.3rpm to 6000rpm. In contrast, the speed range of traditional motors is only 1:100.

Low noise operation

The noise level of our variable frequency speed motor at rated load is only 58db, which is 17db lower than the industry average. Through computational fluid dynamics optimization, we have reduced fan noise by 6db.

Application of Variable Frequency Motor

01/

Hvac systems:

One of the most noticeable everyday uses of variable frequency motor is in heating, ventilation, and air conditioning (hvac) systems. In residential and commercial buildings, hvac systems rely on variable frequency motor to regulate the speed of fans and pumps.

02/

Home appliances:

Many modern home appliances are equipped with variable frequency motor to optimize their performance. Washing machines, for example, use variable frequency motor to control the speed of the drum during different stages of the wash cycle.

03/

Elevators and escalators:

In buildings with elevators and escalators, variable frequency motor play a crucial role in managing their operation. By controlling the motor speed, variable frequency motor ensure smooth acceleration and deceleration, enhancing passenger comfort and safety.

04/

Pumps and water systems:

Variable frequency motor are extensively used in water supply and wastewater management systems. In residential settings, variable frequency motor help regulate the speed of water pumps, ensuring a consistent water pressure throughout the house.

05/

Refrigeration systems:

In refrigeration systems, such as those found in supermarkets, cold storage facilities, and even home refrigerators, variable frequency motor control the speed of compressor motors. By adjusting the compressor speed to match the cooling demand, variable frequency motor help in maintaining the desired temperature more efficiently.

06/

Fan systems:

Ventilation fans, whether in industrial facilities, commercial buildings, or even homes, often use variable frequency motor to control their operation. By varying the fan speed, variable frequency motor help in maintaining optimal air circulation while saving energy.

Packing and Shipping of Variable Frequency Motor

Packing	Wooden box
Shipping	Shipped by road, sea, rail

FAQ

Q: What is a variable frequency motor?

A: Avariable-frequency drive (VFD, or adjustable-frequency drive, adjustable-speed drive, variable-speed drive, AC drive, micro drive, inverter drive.

Q: What is the difference between VFD motor and normal motor?

A: VFD motors can meet the required speed requirements by changing the frequency of the motor according to work needs, and can adjust the speed.

Q: How long does a variable speed motor last?

A: Still, many people don't know how they work internally and how long they should last. From our experience, most low voltage VFDs will last about ten years, whereas medium voltage VFDs will often last 20. This can vary and is based on many factors

Q: What is the life expectancy of a VFD?

A: The lifespan of a Variable Frequency Drive (VFD) typically ranges from 7 to 12 years. However, several factors can influence this duration. Quality is crucial; a well-designed VFD with high-quality components tends to last longer.

Q: What are the advantages of a variable speed motor?

A: Variable speed motors offer better control over motor speed and torque than induction motors. This is because variable speed motors can be programmed to operate at specific speeds and torque levels, which can be useful in applications that require precise control, such as manufacturing processes or robotics.

Q: What is the difference between a variable speed motor and a VFD?

A: Avariable frequency drive (VFD) refers to AC drives only and a variable speed drive (VSD) refers to either AC Drives or DC Drives. VFDs vary the speed of an AC motor by varying the frequency to the motor

As one of the most professional variable frequency motor manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy bulk discount variable frequency motor from our factory. Contact us for customized service and quotation.

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