Quality Control
At Witroy, quality is not just a checkpoint—it’s embedded in every stage of our production process. With 15 years of hands-on experience in quality assurance, our inspection team is dedicated to ensuring that every unit delivered meets the highest standards of safety, performance, and reliability.
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Quality Control Process
Our quality assurance system covers the entire production lifecycle—from incoming materials to final product shipment.
Supplier Quality Management
Rigorous evaluation and continuous monitoring of suppliers to guarantee material quality and consistency.
R&D Quality Control
Strict quality checks during product development to ensure design reliability and manufacturability.
Raw Material Inspection
Thorough incoming inspection of all raw materials and components before production begins.
In-Process Monitoring
Real-time quality checks during manufacturing to catch issues early and maintain process stability.
Product Testing
Extensive electrical, environmental, and safety testing on finished products to verify performance and durability.
Final Quality Assurance
Comprehensive inspection and verification before shipment to ensure every product meets our high standards.
Product Testing and Certification
All products are tested to meet international quality and safety standards, including:
Electrical Safety Testing: Insulation, grounding, over-voltage, and leakage checks
Environmental Testing: High/low temperature, humidity, and salt-spray resistance
Battery Safety: Overcharge, over-discharge, short-circuit, and drop testing
Certifications: CE, MSDS, CANS, and internal patent protection
Comprehensive Testing Capabilities
Our in-house testing lab enables precise simulation of real-world conditions, supporting product validation at every stage:
AAA-Class Solar Simulator for accurate photovoltaic performance
IP67 Test Chambers for dustproof and waterproof integrity
Arbin Battery Testing System for long-term charge/discharge cycles
Aging Racks & Load Simulators to test full-capacity reliability over time
State-of-the-Art Facilities
Our 9,000㎡ smart factory integrates quality control with automation and digital tracking:
Automated SMT Lines with micron-level placement accuracy
High-Speed Stringers for consistent solar cell bonding
Real-Time Quality Data Capture Systems across workstations
Clean Assembly Zones to prevent contamination and ensure battery integrity
This investment in precision and technology allows us to consistently deliver products with 99.8% pass rates.
contact us
Witroy provides professional OEM and ODM services for portable power stations, solar panels, and solar inverters, including development board customization and brand logo. Our R&D team, with over 15 years of experience, offers customized solutions to support your commercial projects.
call us
+86 13715946710
info@witroy.com
address
Floors 5-7, Building 1, Huidongsheng Industrial Park, Guangqiao Road, Guangming District, Shenzhen, Guangdong Province, China