Tianjin Yongkai International Trade Co., Ltd.

Precision Control
Industrial Grade VFDs

Empowering global automation with advanced 3 phase variable frequency drive systems. We deliver unmatched torque control, energy efficiency, and seamless integration for high-demand electrical machinery in the most rigorous industrial environments.

50000+
Annual Output
120+
Countries Served
7 Days
Sample Lead Time
99.8%
On-Time Delivery

Engineering Excellence
& Motion Mastery

The benchmark for high-performance motor control in modern industrial automation.

Our 3 phase variable frequency drive series stands as a cornerstone of modern electrical machinery. By integrating advanced PWM technology and robust thermal management, we provide a solution that not only optimizes motor speed but dramatically reduces mechanical wear and tear. These drives are engineered to maintain peak efficiency across varying load conditions, ensuring your production line remains uninterrupted.

Beyond simple speed control, our technical advantage lies in the intelligent harmonic filtration and rapid response time. This ensures that sensitive electronics in the automation chain are protected from electrical noise. Whether managing heavy-duty conveyors or high-precision CNC spindles, the stability of our 3-phase VFDs guarantees a significant reduction in energy consumption and a prolonged lifespan for your industrial assets.

Core Technical
Pillars

Three foundational strengths ensuring maximum reliability and precision.

01

Energy Efficiency

Optimizing power consumption through intelligent load adaptation.

  • Low Standby Power: Reducing inactive energy waste by up to 15%.
  • Dynamic Voltage: Automatic adjustment based on torque requirements.
  • Eco-Mode: Specialized algorithms for light-load operations.
02

Precision Control

High-fidelity frequency modulation for exact speed synchronization.

  • Zero-Slip Logic: Ensuring constant velocity regardless of load changes.
  • Fast Ramp-up: Millisecond-level acceleration and deceleration curves.
  • PID Integration: Built-in proportional-integral-derivative control.
03

Industrial Durability

Hardened components designed for 24/7 operation in harsh climates.

  • Heat Dissipation: High-efficiency aluminum heatsinks for cooling.
  • Surge Protection: Built-in protection against voltage spikes.
  • IP-Rated Housing: Dust and moisture resistance for factory floors.

Performance Metrics
& Efficiency Data

Quantitative evidence of our technical superiority in the automation sector.

Energy Savings Distribution

Operational Stability Index

Technical Data
Specifications

Complete engineering parameters for precision system integration.

Model Series
Input Voltage
Output Power
Freq Range
Control Mode
Efficiency
VFD-Standard 0.75kW
3-Phase 380V
0.75 kW
0.1 - 400 Hz
V/f Control
97.2%
VFD-Standard 1.5kW
3-Phase 380V
1.5 kW
0.1 - 400 Hz
V/f Control
97.5%
VFD-Heavy 5.5kW
3-Phase 400V
5.5 kW
0.5 - 600 Hz
Sensorless Vector
96.8%
VFD-Heavy 11kW
3-Phase 400V
11 kW
0.5 - 600 Hz
Sensorless Vector
96.5%
VFD-Industrial 22kW
3-Phase 480V
22 kW
0.1 - 400 Hz
Closed-loop Vector
95.9%
VFD-Industrial 37kW
3-Phase 480V
37 kW
0.1 - 400 Hz
Closed-loop Vector
95.7%
VFD-Extreme 55kW
3-Phase 600V
55 kW
0.1 - 400 Hz
Direct Torque Ctrl
94.8%
VFD-Extreme 75kW
3-Phase 600V
75 kW
0.1 - 400 Hz
Direct Torque Ctrl
94.5%

Real-World
Impact

Proven success across diverse global industrial landscapes.

Global Logistics Hub

Conveyor System Optimization

Implemented high-torque VFDs across 2km of sorting conveyors, reducing startup current spikes by 40%.

Energy Cut: 22% ROI: 14 Months

Steel Milling Plant

Heavy Duty Blower Control

Replaced mechanical dampers with variable frequency drives for cooling fans, eliminating excessive vibration.

Noise Reduction: 12dB Uptime: +15%

Textile Manufacturer

Precision Loom Sync

Deployed closed-loop VFDs to synchronize multiple looms, reducing fabric defects by 30%.

Defect Rate: -30% Precision: +/- 0.01Hz

Water Treatment Plant

Pump Pressure Control

Integrated VFDs with pressure sensors to maintain constant flow, reducing energy costs by 35%.

Power Save: 35% Stability: 99.9%

Automotive Assembly

Robotic Arm Sync

High-precision VFDs implemented for robotic conveyor sync, improving assembly throughput by 12%.

Throughput: +12% Cycle Time: -5s

Mining Ventilation

Subterranean Airflow

Installed extreme-environment VFDs to regulate airflow based on real-time gas sensors.

Reliability: 99.98% Compliance: 100%

Industry
Applications

Tailored solutions for demanding environments.

Food & Beverage

Hygienic speed control for mixers, bottling lines, and conveyor systems requiring wash-down compatibility.

Oil & Gas

Explosion-proof VFD configurations for centrifugal pumps and compressors in volatile environments.

HVAC Systems

Variable airflow control for commercial chillers and ventilation units, maximizing thermal efficiency.

Pulp & Paper

Precision speed synchronization for massive rollers and drying cylinders in paper production.

Mining Equipment

Heavy-duty motor drives for crushers and conveyor belts operating in abrasive environments.

Textile Industry

Ultra-stable frequency output for spinning machines, ensuring consistent yarn quality.

Quality Assurance
& Export Standards

Rigorous Load Testing

Every unit undergoes a 48-hour continuous burn-in test at 110% rated load to ensure thermal stability and component longevity before shipping.

Dielectric Isolation Standards

We utilize high-voltage isolation barriers and premium capacitors to prevent leakage and ensure operator safety in high-humidity zones.

Global Compliance Audit

Our production lines follow ISO 9001:2015 quality protocols, with each batch receiving a certified test report for export transparency.

Trust Verified

Certified for the most demanding electrical environments worldwide.

✓ CE Certified ✓ UL Listed ✓ RoHS Compliant

Frequently Asked
Questions

Expert answers to common technical and commercial inquiries.

01

How does a 3 phase variable frequency drive reduce energy costs?

By adjusting the motor speed to match the actual load requirement instead of running at full speed and using dampers or valves, our VFDs eliminate wasted energy, often reducing power consumption by 20-50%.

02

What is the difference between V/f and Vector control?

V/f control is ideal for simple applications like fans and pumps. Vector control provides precise torque and speed regulation, making it essential for cranes, elevators, and high-precision CNC machinery.

03

Can your VFDs operate in extreme temperatures?

Yes, our industrial series features extended temperature ratings and advanced heatsink designs, allowing stable operation in environments ranging from -20°C to +60°C.

04

Do these drives support Modbus or Profibus communication?

Absolutely. Most of our models come with Modbus RTU as standard, and we offer optional expansion modules for Profibus, Profinet, and EtherCAT integration.

05

What is the lead time for custom power ratings?

For standard models, we ship within 7 days. Custom power configurations usually require 14-21 days for precision engineering and certification testing.

06

How do I prevent harmonic distortion in my plant?

We recommend integrating our VFDs with active harmonic filters or using reactors on the input side to maintain a clean power grid and protect other sensitive equipment.

Optimize Your Production Today

Upgrade to our high-efficiency 3 phase variable frequency drive systems and experience unmatched reliability and energy savings.

Get a Quote

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