Views: 4 Author: Site Editor Publish Time: 2025-08-08 Origin: Site
HARS is a leading Chinese manufacturer specializing in Variable Frequency Drives (VFDs), expertly designed to control AC motor speed and torque across diverse industrial contexts. With over 18 years of industry experience, and certifications including ISO9001:2015 and CE compliance, HARS has earned a reputation for innovation and reliability in power electronics.
Their extensive product suite includes models such as the VFD‑HS290, HS‑310, HS‑320, HS‑320Pro, HS‑720, HS‑800, and Solar Pump VFD. These units serve a wide spectrum—from compact machinery to heavy industrial automation systems. HARS also offers OEM/ODM services, allowing personalization of logos, colors, molds, and specifications to meet clients’ unique needs.
A delegation of potential buyers from Bangladesh visited the Hars VFD factory on August 6th . The visit was hosted by Mr. Sun, the International Department Manager, alongside his expert team.
During the tour, Mr. Sun presented HARS VFD technology and guided the delegation through each stage of the factory's production workflow. The Bangladeshi clients expressed strong interest in acquiring HARS VFDs, praising the design integrity, reliability, and engineering quality of the products they saw.
This event underscored HARS global reputation and capability to meet international industry needs with advanced and dependable products.
HARS vertically integrated production process ensures consistent and high-quality output. The journey from raw materials to finished VFD units follows two key workflows:
PCB Fabrication: Boards are either manufactured in-house or produced via external SMT partners, balancing efficiency with quality control.
Initial Testing: Each PCB undergoes basic functional checks, including control circuitry and interface responsiveness.
Aging Test: Boards are subjected to continuous operation—typically over 24 hours—to verify long-term stability.
Post-Aging PQC: Final evaluations confirm performance under thermal stress.
Component Assembly: Integration of control boards, power modules, and enclosures into fully functional units.
In-line PQC Inspection: Quality checks embedded in the assembly process detect early defects.
Debugging & Calibration: Skilled technicians fine-tune internal parameters for optimal motor control.
Aging of Assembled Units: Completed VFDs undergo rigorous stress testing to simulate extended usage.
FQC (Final Quality Control): Comprehensive evaluations ensure compliance with electrical and safety standards.
Packaging & OQC: Approved units are securely packaged and receive a final inspection before shipment.
This multistage quality control ensures heightened reliability, minimized defects, and long-term product performance.
To fully appreciate HARS VFD technology, it's helpful to understand its operational principles:
A VFD regulates both voltage and frequency supplied to an AC motor, enabling precise control over motor speed and torque. The result: improved starting behavior, energy savings, and reduced mechanical stress.
Rectification: Converts incoming AC power to DC.
DC Bus Filtering: Smooths and stabilizes power flow.
Inversion (PWM): Uses Pulse Width Modulation to transform DC back into AC at adjustable frequency and voltage.
Advanced models like the HS‑320Pro incorporate Field-Oriented Control (FOC)—a strategy separating torque and flux control for faster response, dynamic stability, and improved handling under varying load conditions.
| Feature | Advantages |
|---|---|
| Versatility | Wide range of models accommodate diverse applications |
| Customization | OEM/ODM options cater to unique client specifications |
| Reliability | Rigorous multi-layered QC ensures consistency and quality |
| Advanced Control | Vector control, PID, multi-pump switching, and leak detection enable superior performance |
| Global Trust | ISO and CE certifications solidify its international credibility |
The August 6 visit served as a vital milestone in HARS international outreach. Under Mr. Sun’s guidance, the Bangladeshi delegation not only gained a comprehensive understanding of HARS production capabilities—but also conveyed genuine interest in pursuing procurement.
This visit demonstrated HARS transparent manufacturing practices, engineering depth, and readiness to support global industrial customers with high-quality, customizable solutions.
Final Thoughts
The August 6, 2025 factory visit by Bangladeshi clients epitomizes HARS strength in combining superior technology with open and professional engagement. Led by Mr. Sun, the experience left a positive and lasting impression—reinforcing HARS as a top-tier choice for VFD solutions across international markets.
