Leading VFD & Hybrid Inverter
Provfd Frequency Converters
Engineered for excellence, built for reliability. Our comprehensive range of frequency converters delivers optimal performance across diverse industrial applications.
Complete Product Range
Three major series with over ten specialized models to meet your specific industrial requirements
General Purpose Series
Versatile frequency converters suitable for pumps, fans, conveyors, and general machinery applications across multiple industries.
- 0.4kW - 630kW power range
- Advanced vector control
- Multiple protection features
High Performance Series
Premium frequency converters with advanced features for demanding applications requiring precise control and high efficiency.
- Superior dynamic response
- Energy saving technology
- Industrial Ethernet support
Specialized Application Series
Industry-specific solutions tailored for unique requirements in cement, paper, textile, metallurgy, and petrochemical sectors.
- Custom configurations
- Harsh environment rated
- Application-specific algorithms
Compact Series
Space-saving designs for applications with limited installation space while maintaining full functionality and reliability.
- Ultra-compact footprint
- Easy installation
- Cost-effective solution
Heavy Duty Series
Robust frequency converters engineered for extreme conditions and continuous operation in the most demanding industrial environments.
- 24/7 continuous operation
- Enhanced cooling system
- Extreme environment rated
Comprehensive Customer Services
From initial consultation to ongoing support, we're committed to your success at every stage
Technical Consultation
Expert guidance for optimal solution selection
Custom Engineering
Tailored solutions for unique applications
Fast Delivery
3000 units daily production capacity
24/7 Support
Round-the-clock technical assistance
Complete Lifecycle Support
Pre-Sales Engineering
Application analysis, system design, and solution optimization
Installation & Commissioning
On-site installation support and system commissioning services
Training & Documentation
Comprehensive operator training and technical documentation
Maintenance & Upgrades
Preventive maintenance programs and technology upgrades
Trusted Across Industries
Our frequency converters power critical applications across diverse industrial sectors worldwide
Cement
Kilns, mills, conveyors
Paper & Pulp
Paper machines, winders
Metallurgy
Rolling mills, furnaces
Textile
Spinning, weaving machines
Petrochemical
Pumps, compressors
Partner with China's Leading VFD Manufacturer
Direct factory pricing and customized solutions to maximize your investment while maintaining superior quality standards
By partnering directly with Haishang's manufacturing facility, you gain access to wholesale pricing that significantly reduces your procurement costs compared to traditional distribution channels.
Our commitment to sustainable manufacturing practices ensures that every frequency converter is produced using eco-friendly processes and materials, supporting your company's environmental initiatives.
As your business scales, our flexible production capacity and technical expertise ensure consistent quality and reliable supply chain management for your growing automation needs.
Advanced Manufacturing Capabilities
State-of-the-art 30,000㎡ facility with automated production lines delivering superior frequency converter solutions.
Automated Production
Seven assembly lines with robotic systems ensuring consistent quality and rapid production cycles.
Quality Control
5S management with strict protocols ensuring every component meets specifications.
High-Speed Assembly
HS320 production line achieves 26-second cycle times with 3,000 units daily capacity.
Coating Technology
Three automated conformal coating lines providing superior environmental protection.
Testing Excellence
Comprehensive quality checkpoints ensuring rigorous performance standards.
Smart Packaging
Automated packaging systems ensuring secure protection for global distribution.
What Our Customers Have to Say
Trusted by industry leaders worldwide for reliable frequency converter solutions and exceptional service.
"Provfd's frequency converters have transformed our cement production line. The reliability and energy efficiency exceeded our expectations. Their technical support team provided excellent guidance throughout the implementation."
"Outstanding quality and performance! We've been using Provfd converters in our textile machinery for two years. The precision control and durability have significantly improved our production efficiency."
"The custom frequency converter solutions from Provfd perfectly matched our metallurgy requirements. Exceptional build quality and the engineering team's expertise made the integration seamless."
Ready to Optimize Your Industrial Process?
Contact our technical experts today to discuss your specific requirements. We'll help you select the perfect frequency converter solution for your application.