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Variable Frequency Drive Manufacturer & Supplier

HARS is dedicated to the design and manufacture of sophisticated Variable Frequency Drives, used to control electric motors in a wide variety of industrial and energy saving applications.

● Original Manufacturer with Competitive Price
● 16+ Years of VFD Knowledge and Experience
● ISO / CE Manufacturing Standards

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Variable Frequency Drives (VFDs) Offered

HARS has been trusted to provide quality products and innovative solutions to help our customers solve challenges for years. This has made us a leading manufacturer of VFD in a wide variety of applications.

Can't Find Ideal VFD (Variable Frequency Drive) For Your Industry?

We provide custom solutions to all our customers and offer professional advice that you can take advantage of.
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Hars VFD Series

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VFD Working Principle

Hars VFD is a power control equipment which adopts microelectronics technology and frequency conversion technology to change the working power frequency of motor for controlling AC motor.

Variable Frequency Drive converts incoming AC power to DC, inverts it back to AC with variable frequency and voltage, and supplies this controlled power to the motor. This control allows for precise regulation of motor speed, soft start and stop, and improved energy efficiency in various industrial applications.
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What Is A Variable Frequency Drive (VFD)?

A variable frequency drive (VFD) (also known as AC Drive, Inverter, Adjustable Frequency Drive, Adjustable Speed Drive, Variable Speed Drive Or Variable Frequency Variable Voltage Drive) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage supplied to it.

Variable Frequency Drives (VFD) consist of two main components a rectifier and an inverter. The rectifier converts AC power from the source into DC power, while the inverter transforms the DC power back into adjustable-frequency and voltage AC power, supplying it to the electric motor. This method of adjusting the power input allows the motor to operate at different speeds, making VFD widely used in various industrial applications.

HARS Series Variable Frequency Drives (VFD) play a crucial role in areas such as improving energy efficiency, reducing energy consumption, and enabling soft start and stop functionalities.
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Variable Frequency Drive Features

 Speed control HARS VFD allow for precise control of motor speed, allowing operators to adjust the rotational speed of the motor shaft to meet specific requirements.
 
 Energy savings By controlling the motor speed based on the required load, HARS Frequency converters can significantly reduce energy consumption compared to traditional fixed-speed motors.
  Soft-start capabilities HARS frequency inverter provide a gradual ramp-up of motor speed, reducing mechanical stress on the motor and associated equipment during startup, thus extending their lifespan. 
 
  Fault diagnostics HARS VFD AC drive include diagnostic capabilities to monitor motor performance, detect faults or abnormalities, and provide alerts or alarms for maintenance or troubleshooting purposes.
  Braking functions HARS VFD Variable Frequency Inverter offer built-in braking capabilities, allowing for controlled deceleration and stopping of the motor without the need for additional braking mechanisms.
 
  Overload protection HARS variable frequency drive monitor motor current and can automatically adjust motor speed to prevent overload conditions, protecting the motor from damage.
Programmability HARS variable frequency drives are programmable and offer customizable settings and parameters, allowing for fine-tuning and optimization of motor control based on specific application requirements.

Protection features HARS Variable Speed Drive include various protective measures, such as short circuit protection, overvoltage/undervoltage protection, and thermal overload protection, to safeguard the motor and VFD from potential damage.
Communication interfaces HARS adjustable frequency drive have various communication options, such as serial interfaces (RS485, Modbus), Ethernet, or fieldbus protocols, enabling integration with other control systems or remote monitoring.

User-friendly interface HARS Adjustable Speed Drive come with user-friendly control panels and displays, allowing operators to easily configure and monitor motor operation and performance. VFD also feature remote control capabilities through external devices or software interfaces.
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When To Use a VFD?

As a leading VFD AC drive manufacturer and supplier, we recommend using VFD in many situations, which are as follows

> To precisely control the speed of a manufacturing process based on specific parameters or conditions
> To provide a smooth start and vigilant acceleration to operating speed, preventing damage to the equipment being transported.
> To ensure energy savings, especially in areas where a load’s torque and power may vary.
>To make the process and quality enhancements in applications’ acceleration, monitoring, speed, temperature, tension, pressure, and torque.

HARS is a professional AC drives manufacturer and global supplier specialized in research, manufacturing, and trading high to low variable frequency drives. Armed with years of experience and a dedicated team, offering a wide array of VFD products.

Need VFD Drive? Reach Out to Us!
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About HARS

We are a high-tech enterprise specialized in research, development, production, sales, and technical services of industrial frequency converters. We were established in 2008 and is located at 18 Xiaoguo Avenue, Economic Development Zone, XiaoXian City, Anhui Province. The company currently has over 200 employees, including 2 Ph.D. holders and more than 10 master's degree holders. Over 50% of the workforce consists of professionals with expertise in variable frequency technology, contributing to its robust product research and development capabilities and technical support.

Hars VFD are selling well in both China and oversea countries.Now our overseas business is booming rapidly! Hars holds the leading position in its main business of VFD manufacturing, who are well-known as stable performance, high quality and perfect technical support. They are widely used in electric, building material, papermaking, petrochemical, port, airport, steel, charging cluster, municipal, rail transit, new energy, coal and more.
As a government-supported high-tech enterprise, we has obtained ISO9001:2015 quality management system certification and EU CE certification. It has been honored with awards such as the National Innovation Fund, High-tech Research Subsidy, Product Innovation Award, and Most Valuable Investment Award. With continuous research and development efforts, our VFD have evolved into three major series and over ten specialized models, earning five invention patents and more than thirty utility model patents. Our best-selling models are: HS320, HS720, HS310 and so on.
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Production Capacity

HARS VFD production base covers an area of over 30,000 square meters and is equipped with seven assembly lines for frequency inverters, three production lines for circuit boards and testing, three automated packaging lines, and three fully automated three-proof coating lines. Additionally, the base is equipped with automated devices such as automatic screw machines, automatic welding machines, and automatic unboxing machines. The SD320 assembly line, in particular, can produce one frequency inverter every 26 seconds, with a daily output of up to 3000 units. The advanced equipment ensures both the quality and productivity of our products.
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Cooperation Process

Step.1
Send your inquiry
Step.2
Quote price
Step.3
Negotiate price and lead time
Step.4
Sign the contract
Step.5
Payment and production
Step.6
Inspection
Step.7
Shipment
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Variable Frequency Drive FAQ

  • What does a variable frequency drive do?

    A variable frequency drive (VFD) is an electronic device used to control the speed and torque of an electric motor by varying the frequency and voltage supplied to it. it widely used in various applications, including HVAC systems, industrial machinery, pumps, fans, compressors, and more.
  • What is difference between VSD and VFD?

    Variable frequency drives (VFDs) and variable speed drives (VSDs) differ in that VFDs are AC drives only, while VSDs can be either AC drives or DC drives.  VFDs vary the speed of an AC motor by varying the frequency to the motor.  VSDs referring to DC motors, vary the speed by varying the voltage to the motor.The VFD is designed for the continuous operation of electrical motors.
  • What is the advantage to variable frequency drive motors?

    Energy efficiency, soft start and stop capabilities, enhanced process control, extended motor lifespan, adaptability to load changes, reduced electrical stress, cost savings, improved power factor, remote monitoring and control features.
  • What applications can I use a VFD?

    Pumps 
    Fans 
    Conveyors
    Compressors 
    Centrifuges 
    Mixers and Agitators 
    Machine Tools 
    Crushers and Grinders
    Extruders
    Hoists and Lifts 
    Escalators and Elevators
    Paper Machines 
    Textile Machinery 
    Electric Vehicles 
    Wastewater Treatment 
  • What are the different types of variable frequency drives?

    Single phase and three phase VFD
    A single-phase converter outputs three phases with a voltage of 220V from a single-phase 220V network.
    Three-phase VFDs are connected to three-phase 380V networks and output three phases at 380V as output voltage.
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