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Pleating forming is the most core process in air filter production, directly determining the effective filtration area, dust storage capacity, and air intake resistance of the product. Modern filter factories adopt fully automatic CNC pleating machines to replace traditional manual folding, realizing precise digital co
After pleating and shaping, the filter media enters the fixed-length precision cutting process, which is a key link to ensure the dimensional accuracy of finished filters. Professional automated cutting equipment adopts laser positioning and numerical control sizing technology, realizing zero-error cutting according to
PU frame molding is the key molding process for high-end automotive air filters, determining the overall structural stability and sealing performance of the filter. The factory adopts advanced one-piece PU foaming molding technology, using high-elasticity and aging-resistant polyurethane raw materials, which are inject
Thermal curing stabilization is an essential post-processing process for high-performance air filters, specially designed to solve the problems of filter paper deformation, fold rebound, and poor moisture resistance. After pleating and cutting, the filter element is sent to a constant-temperature curing workshop for st
Resin impregnation is one of the most critical hidden processes in high-grade automotive air filter manufacturing, which fundamentally improves the physical performance of ordinary filter paper and adapts to complex engine operating environments. Ordinary untreated filter paper is soft, prone to water absorption, defor
The dimensional accuracy of air filter finished products depends entirely on the precision level of production molds. High-quality auto filter factories adopt ultra-precision mold processing technology including electrical discharge machining and ultra-precision grinding, with the mold tolerance controlled within micro
