Professional VFD Solutions
for Industrial Automation
WXQ300 Series Variable Frequency Drives
High-performance inverters from 0.75kW to 720kW — featuring premium IGBT modules, sensorless vector control, and comprehensive 6-fold protection systems for demanding industrial environments.
Complete VFD Product Range — From 0.75kW to 720kW, 1-Phase to 3-Phase Solutions
See SHZK in Action
Watch our promotional video to learn more about SHZK VFD solutions
Product Series
Complete range of Variable Frequency Drives for every industrial application
VFD 300 N/T Series
Three Phase 380V Input/Output
Sensorless Vector Control VFD
0.75kW – 720kW
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VFD 300 S2 Series
Single Phase 220V In → Three Phase 220V Out
Compact & High Efficiency
0.75kW – 5.5kW
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VFD 300 S3 Series
Single Phase 220V In → Three Phase 380V Out
Stepless Speed Regulation
0.75kW – 11kW
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VFD 300 H2 Series
Single Phase 220V In → Single Phase 220V Out
Ultra-lightweight 1.24kg
0.75kW – 3kW
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ZK Series Intelligent Soft Starter — Compact Design, Reliable Motor Control
Why Use a Variable Frequency Drive (VFD)?
Variable frequency drives (VFDs) are commonly used to control motor speed based on actual load demand. By adjusting motor output, they help improve system efficiency, reduce mechanical stress, and maintain stable operation across applications such as HVAC systems, pumps, and industrial machinery.
Sensorless Vector Control
Provides stable speed and torque regulation without requiring encoder feedback. Reliable operation is maintained even when load conditions change.
Smart Protection Logic
Multiple protection functions monitor abnormal voltage and fault conditions in real time. Thermal monitoring shuts the system down before damage occurs.
Modbus RS485 Communication
Remote monitoring and data exchange are supported through RS485 communication, allowing connection with external control systems.
Energy Efficient Operation
When load demand changes, motor output adjusts accordingly to reduce unnecessary power consumption in fan and pump applications.
Digital Keypad Interface
Simple parameter setup and real-time operating status are available through the keypad interface, helping reduce commissioning time.
Compact Modular Design
A compact modular structure fits easily into standard electrical cabinets and supports both new installations and retrofit projects.
Why Choose SHZK
Trusted by industrial customers worldwide for quality, reliability, and value
Premium IGBT Core
High-quality IGBT power module with SVPWM control technology, ensuring stable output and long service life.
6-Fold Protection
Comprehensive protection against over-current, over-voltage, under-voltage, over-heat, overload, and short-circuit.
UL94 V-0 Housing
Flame-retardant enclosure rated UL94 V-0 for maximum operational safety in industrial environments.
Factory Direct
Manufactured in Yueqing, China with 10+ years of VFD expertise. Competitive factory-direct pricing with no middleman.
Fast Delivery
Standard models in stock for immediate shipment. Custom orders fulfilled within 7–15 business days.
Technical Support
Complete documentation package including wiring diagrams, parameter manuals, and application guides for every model.
VFD Application Guide
LAKINELE Variable Frequency Drives efficiently control AC motors and PMSM motors across a wide range of industrial and commercial applications—crane systems, fresh air ventilation, water pumps, and food processing machinery—delivering precise speed control, energy savings, and reliable performance.
Choose the right VFD model based on your specific application requirements.
Belt Conveyor
Belt conveyors require smooth acceleration to reduce belt slippage and mechanical impact during startup. Adjustable speed control matches the conveying rate to production requirements, improving efficiency and reducing mechanical wear.
Electric Wire Rope Hoist
Wire rope hoists need controlled acceleration and deceleration for stable lifting. Sudden starts and stops create mechanical stress and load swing. A VFD reduces impact on components and improves positioning accuracy during repeated lift cycles.
Centrifugal Water Pump
Centrifugal pumps run under changing demand. Continuous full-speed operation wastes energy. Matching motor speed to demand via VFD cuts power use, maintains stable flow, and reduces pressure spikes that cause pipeline stress and water hammer.
Rotary Screw Air Compressor
Screw compressors run long shifts while air consumption varies. Speed adjustment based on real-time demand reduces idle losses and improves energy efficiency, while stable pressure protects downstream pneumatic equipment.
HVAC Fan
HVAC fans face continuously changing airflow demand. Constant-speed running wastes energy; speed adjustment matches airflow to actual ventilation needs, improving comfort and cutting operating costs while reducing duct vibration.
Our engineers will help you match the right drive to your application
Model Comparison
Complete range of Variable Frequency Drives for every industrial application
| Parameter | VFD 300 N/T | VFD 300 S2 | VFD 300 S3 | VFD 300 H2 |
|---|---|---|---|---|
| Application | General Machinery / Conveyor | Small Motor / Light Load | Pump / Fan | Crane & Hoist |
| Power Range | 0.75 – 720 kW | 0.75 – 5.5 kW | 0.75 – 11 kW | 0.75 – 3 kW |
| Input Voltage | 3PH 380V | 1PH 220V | 1PH 220V | 1PH 220V |
| Output Voltage | 3PH 380V | 3PH 220V | 3PH 380V | 1PH 220V |
| Control Mode | V/F, SVC, FVC | V/F, SVC | V/F, SVC, FVC | V/F, SVC |
| Communication | Modbus RTU | Modbus RTU | Modbus RTU | Modbus RTU |
| Output Frequency | 0 – 500 Hz | 0 – 400 Hz | 0 – 400 Hz | 0 – 400 Hz |
Featured Projects
Proven track record in delivering reliable power solutions for industrial and renewable energy applications
New Energy Technology — Solar PV Power Generation Solutions
Industrial PV Substation Installation — Reliable Power Distribution
What Our Customers Say
Real results from real industrial users around the world
Our maintenance tech went through two drives in 3 months with the old brand. A total headache. Been running the SHZK VFD 300 N/T 720kW for over a year now — no problems at all.
We’ve been using the SHZK VFD 300 on our fans and pumps for over a year now. Energy consumption is down by 25%, and the electricity bill has dropped by 20%. Paid for itself in under 18 months. Planning to add more next quarter.
Our control cabinet was already packed and we really didn’t have room left for anything bigger. The SHZK VFD 300 H2 is small enough that we squeezed it into the last bit of space. For a small conveyor motor that’s all we needed. Been running fine so far.
Ready to Optimize Your Motor Control?
Contact us for technical consultation and competitive pricing on SHZK variable frequency drives.
Certifications & Compliance
Our products meet international safety and environmental standards