Industrial VFD solutions for pumps, fans, compressors and engineered machinery.
We connect motor control, application requirements and project delivery—from machine integration to large industrial systems.
Intelligent pumpjack control
Adaptive variable-frequency control, well-condition monitoring, equipment protection and SCADA connectivity for demanding oil production sites.
Compressor drive control
Pressure closed-loop control, smooth starting and flexible integration for induction- and permanent-magnet-motor compressor systems.
Water pump drive control
Pressure, flow and level control with WD200 low-voltage and WD5100 medium-voltage drive platforms, multi-pump coordination and SCADA integration.
High-speed drive control
Up to 3000 Hz output across low-, 690 V and medium-voltage platforms for spindles, centrifugal machinery, vacuum pumps and magnetic-bearing systems.
Mobile emergency power conversion
WD610A four-quadrant permanent-magnet generator conversion for compact 50–300 kW emergency power vehicles and mobile generation platforms.
Industrial fan drive control
WD200 low-voltage and WD5100 medium-voltage platforms for ventilation, forced and induced draft, dust collection, kilns, mines, tunnels, cooling and HVAC systems.
Engineering depth. Global manufacturing. Direct support.
Wolong combines motor and drive expertise with global manufacturing, R&D and service resources. Certifications and technical documentation are provided according to product model and target market.


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