FAQ

We supply full‑series low, medium and high‑voltage variable‑frequency drives. Our lineup includes standard industrial inverters, marine anti‑corrosion VFD, shock‑resistant models and explosion‑proof drives for harsh‑condition sites.

Our drives serve marine‑offshore platforms, underground mining, oil‑gas stations, sewage‑treatment plants, building HVAC, metallurgical equipment, machine‑tool spindles and large‑scale fan‑and‑pump systems.

Three‑level hardware generates extremely low‑harmonic output. It prevents electromagnetic interference toward ship‑borne instruments, communication hardware and precision‑processing control equipment.

Yes. Our marine‑grade series adopts salt‑spray‑resistant surface coating, fully‑enclosed cabinet housing and anti‑corrosion metal components for long‑term offshore‑deck and coastal operation.

Every VFD model carries built‑in PID algorithm for stable water‑pressure or temperature maintenance. Motor speed automatically adjusts to cut idle power consumption for pumps and ventilation fans.

Mining‑specialized inverters use strengthened internal brackets, anti‑loose terminals and shock‑absorbing layouts to endure continuous vibration inside underground tunnels.

We deliver one‑stop cabinet‑integration work, covering circuit layout, thermal‑dissipation design, PLC installation, HMI touch‑screen setup and electrical safety‑protection configuration.

Multiple IP‑rating selections are available. We manufacture waterproof, dust‑proof, salt‑fog‑resistant and flame‑proof cabinets to match your on‑site working‑condition requirements.

Standard protocols include Modbus‑RTU, Modbus‑TCP, Profinet and CANopen. Custom communication modules can be developed to connect with your CNC system or battery‑management equipment.

We supply certified explosion‑proof complete control cabinets that satisfy safety‑standards for Class‑I explosive‑risk locations in mines and petroleum‑processing facilities.

Small‑batch trial‑orders are accepted on standard low‑voltage VFD. Single‑unit sample purchases are supported for medium‑voltage and high‑voltage customized frequency‑converter equipment.

Submit motor rated‑power, working voltage, application industry and special‑function demands. Our engineering department will issue a detailed formal quote within 24 working hours.

Full‑scale OEM & ODM customization is available, including private‑logo branding, multi‑language operation panels, customized firmware and bespoke cabinet appearance design.

T/T remittance, sight‑letter‑of‑credit and Western‑Union payments are supported. Flexible settlement terms are negotiable for stable long‑term overseas‑partnership clients.

Stock‑ready standard low‑voltage VFD requires 7‑10 working‑day lead‑time. Custom‑built medium‑high‑voltage inverters and integrated control cabinets need 15‑28 working‑days.

Sea‑freight, air‑cargo, international courier and China‑Europe railway transport are optional according to your delivery speed and logistics‑budget demands.

We support FOB, CFR, CIF and DDP logistics contracts, delivering goods to your appointed seaport, bonded warehouse or job‑site location.

Our export‑document package contains commercial invoice, packing list, certificate‑of‑origin, material inspection reports and product qualification certification files for customs‑clearance.

Our product portfolio carries CE‑certification, ISO9001 quality approval, marine‑equipment inspection certificates, fire‑resistance documents and explosion‑proof test‑reports for industrial tender submissions.

All overseas clients are welcome to visit our production workshops. Our R&D engineers accompany guests for equipment testing and custom‑solution consultations.

Our specialized R&D team devotes research resources to medium‑high‑voltage circuit topology, marine anti‑corrosion technology and spindle‑motor constant‑torque drive‑algorithms.

Every frequency‑inverter carries a standard 24‑month factory warranty. Extended maintenance‑contract service is available for large‑scale industrial‑project orders.

Remote video‑based technical support is always available. For large turnkey industrial‑projects, overseas on‑site engineer deployment can be scheduled upon request.

Round‑the‑clock sales and engineering assistance can be reached via email, WhatsApp and live video‑calls, used for fault diagnosis and drive‑parameter commissioning.

Our international spare‑part logistics network delivers power modules, main‑control circuit boards and cabinet‑accessory replacements to clients globally.

We provide free component‑replacement or full‑unit maintenance for failures not caused by improper human‑operated damage while under warranty.