
China Cooling Fan Factory 50*50*20mm Axial Cooling Fan for Wholse. Customizable Specifications: Rated voltage, speed, air flow, and static pressure can be customized based on customer requirements. High-Quality Bearings: Ball bearings are Minebea NMB brand from Japan with 50,000 hours life; Sleeve bearings last 30,000 hours. Comprehensive Certifications: Products pass CE, UL, CUL, RoHS, ISO9001, ISO14001, and IATF16949 standards. Advanced Testing Equipment: Equipped with wind tunnel, noise room, salt fog tester, and XRF-ROHS inspection instruments. 100% Quality Inspection: 100% inspection of incoming materials and 100% testing before packing for every fan. Flexible Customization Options: ODM and OEM services available with customization from designs or samples. High Production Capacity: Daily production capacity exceeds 70,000 pieces with 350 experienced staff members. Diverse Functionality: Available functions include tachometer, alarm, dual speed, temperature control, PWM, and waterproof options.