HANGZHOU WINJIA PUMP INDUSTRY CO,.LTD.
Welcome to Draconis!
We are your trusted water pump partner, specializing in flexible and high-quality customized solutions. Whether you need OEM, or ODM,we can develop products tailored exactly to your requirements.Based in Hangzhou, China, we combine solid manufacturing capabilities with real industry experience to deliver reliable pumps you can depend on.
Our History
Draconis has focused on the water pump industry for more than 30 years, specializing in clean water pump solutions for industrial, commercial, and residential applications.
Headquartered in Hangzhou, we operate three production bases with over 30,000㎡ factory area and 300+ professional employees, providing product development, design, and OEM/ODM manufacturing solutions.
With continuous innovation and strict quality control, Draconis delivers reliable pump performance comparable to leading European brands, while offering competitive pricing and flexible solutions for global markets.
01
Professional Manufacturer
With over 30 years of manufacturing focus, we possess the deep expertise required to produce high-performance booster, pipeline, and centrifugal pumps. We don’t just assemble; we understand the engineering behind every pump.
02
OEM & ODM Services
We provide flexible OEM and ODM services backed by over 30 years of manufacturing experience. We specialize in customizing key components—such as impellers, mechanical seals, or motor specifications—to precisely match your specific performance and market requirements. Our vertical supply chain ensures direct control over quality and lead times for every custom order.
03
Large Capacity & Automated Production
Equipped with fully automated production lines, our factory has the scale to meet large-volume orders while maintaining consistent precision. We handle different purchase quantities with high efficiency and stable quality.
04
Production Advantage: Direct Supply, Lower Costs
Our group runs 4 independent factories, each focused on a different series of pumps. Instead of relying on outside suppliers, every factory handles its own vertical supply chain for components. This setup completely cuts out the middleman, giving us full control over production flexibility and lead times—and passing the lower costs directly to you.
05
Rigorous Performance Testing
We don’t rely on sampling. Every single pump must pass 100% hydraulic performance testing in our computerized labs before packing, ensuring that every unit meets international safety and efficiency standards.
06
Transparent & Direct Communication
As a company with a long history of serving global clients, we provide clear, technical, and direct communication. You work directly with the manufacturer to ensure smooth information exchange and reliable after-sales support.
Customization:
We build pumps to your specifications. Whether you need private labeling (logo and packing) or a completely custom pump design, our team handles it.
Vertical Supply Chain Advantage: Due to we operate our own 4 specialized facilities, we control the cost, modification flexibility, and lead time directly. You don’t pay middleman markups.
What we customize: Brand labeling, color schemes, motor voltage/frequency, and material upgrades.
Quality Control
100% Hydraulic Performance Test: Every single pump—no random sampling—goes through our computerized testing lab before packing.
Spray Coating Conveyor Line
Automated Machining Workshop
Finished Pump Warehouse
Packaged Goods Dispatch Zone
Motor Stator Assembly Line
Motor Finished Goods Area
Motor Rotor & Housing Storage
We track global market trends and benchmark against the industry’s most successful, high-demand models to guide our product development and mold manufacturing. Driven by an elite R&D team composed of fluid technology experts from top-tier universities worldwide, we reverse-engineer and optimize advanced hydraulic models. This powerful secondary innovation allows us to eliminate common industry pain points—such as excessive energy consumption, insufficient pressure, and high noise levels. The result? High-performance pumps that perfectly match, and often exceed, the quality and efficiency of leading European brands.
We carefully source high-grade industrial materials — including stainless steel, cast iron, seals, and premium motor copper wire. Every batch undergoes strict incoming inspection for hardness, corrosion resistance, pressure tolerance, and material purity. Only materials that meet our high standards are approved for production, guaranteeing durability and reliability from the very beginning.
Our advanced CNC machines precisely process critical components such as the pump body, impeller, pump cover, and bearing housing. We maintain tight control over tolerances, surface finish, and concentricity. Through expert polishing and integrated forming techniques, we reduce internal gaps and wear, resulting in smoother operation and lower energy use.
After machining, we perform professional dynamic balancing on the impeller and rotor assembly. Using high-precision balancing equipment, we detect and eliminate any imbalance. This important step significantly reduces vibration and noise, leading to smoother running, less wear, and longer pump life.
We assemble the pumps in stages following standardized procedures: motor installation, impeller alignment, sealing system fitting, bearing assembly, and final integration. All work is done in a clean, controlled environment with precise attention to sealing gaps and mechanical alignment. This careful process minimizes risks of leakage or mechanical issues and ensures stable, reliable performance.
The pump exterior undergoes a rigorous, specialized surface treatment process, including thorough rust removal, passivation, and the application of a high-grade anti-corrosion, waterproof protective coating. This robust outer shield is engineered to withstand the harshest elements—protecting the equipment from severe outdoor exposure, high humidity, and corrosive environments.
Every completed pump goes through rigorous testing, including hydrostatic pressure tests, no-load and full-load operation, energy consumption measurement, noise and vibration checks, and leakage verification. We simulate real-world conditions to fine-tune flow rate, head, and pressure, making sure each unit is efficient, quiet, and fully performance-compliant.
Once a pump passes all tests, it receives careful protective packaging with multi-layer shockproof, moisture-proof, and anti-rust materials. We follow international shipping standards for secure container loading, ensuring safe delivery to customers worldwide by sea, air, or land transport.
At Draconis, we believe our team is our real strength. We value close collaboration, practical solutions, and continuous innovation.
For us, teamwork isn’t just about working together — it’s about inspiring each other, making full use of everyone’s strengths, and getting things done right. That’s what keeps us moving forward.
