Electret charging is essential for manufacturing high-efficiency filter media. Permanent electrostatic charges are injected into polypropylene and polyester non-woven fabrics. Electrostatic adsorption captures aerosols, particles, viruses and bacteria while maintaining low breathing resistance for medical masks, air purifiers, cleanroom HEPA filters, vehicle air conditioning and fresh air system materials.
1. Deliver stable 0~60kV DC high voltage for corona charging on filter fabric fibers;
2. Constant voltage/current modes adapt different fabric weights, materials and widths;
3. Comprehensive short-circuit and arc protection supports 24-hour high-speed production lines.
Voltage stability ≤±0.5%, strong arc resistance, charge retention over 1 year after charging, compatible with wide media rolls above 1.6 meters and multi-electrode synchronous charging.
Strong DC high voltage generates corona discharge implanting permanent electrostatic charge into non-woven fibers. Electrostatic attraction greatly improves particle and virus filtration efficiency while maintaining low wind resistance meeting national standards for medical masks and high-efficiency air filters.
Medical mask melt-blown fabric charging, HEPA filter production, vehicle air conditioner media treatment, fresh air system filter manufacturing and ultra-high efficiency cleanroom filter material processing.
