Appliion





Product classifiion
Water/Oil Seperator,Hydraulic Filter,Fuel Filter,Air Cabin Filter,Oil Filter,Air Filter


Ranges of appliion
Widely used in engineering machinery, heavy duty truck, bus, generator set, port machinery, cars, ships, industrial equipment, etc

About factroy
Established in 1990, covers an area of 30,000 square meters
Largest enterprises of filter research, development, production, sale and service
High-tech and professional team
Self-owned brand : LEFONG & STAL


Work Flow

Patent number: 201010555665
Independently developed filter material curing technology of Marine air filter which greatly improves the ability of moisture absorption of filter material, burst and tensile strength, and can effectively solve the problems of ordinary air filter of poor moisture absorption and easy to soften and break.


Patent number: ZL201020570189.5
Green design concept and method applied to the design of air filter. Adopting removable oriented structural design which embeds filter cover and sealing ring to realize fast disassembly, installation, and replacement of sealing ring. This design solves the problems of traditional sealing ring and can effectively prevent the effects of deformation of glue aging.


Patent number: ZL2010102100538840
Flat metal mesh structure is unreliable, and it is not easy to loe during installation. Strength of flat metal mesh is not enough, so the air filter is easy to deform, which reduce its service life. In order to improve the strength of the metal mesh, products of our company are set a certain number of arcs in mesh surface according length to increase the strength and stress tolerance.