Import Air Filter — Buy in Bulk from Supplier in China

Holysun Machinery Technology Co., Ltd supplies compressed air filter units in five standard grades: HF9 separator filter, HF7 air line filter, HF5 high-efficiency oil removal filter, HF3 ultra-high-efficiency oil removal filter, and HF1 oil vapor removal filter. The HF9 achieves 3 micron coalescence with 5 ppm w/w maximum remaining oil content using two-stage stainless steel orifice tube separation followed by in-depth fiber media. The HF7 removes solid particles to 1 micron with 1.0 ppm w/w maximum remaining oil content through alternate layers of fiber media and media screen, plus epoxy-bonded blended fiber media for aerosol coalescence.

The HF5 grade targets 0.01 micron solid particle retention with 0.01 ppm w/w maximum remaining oil content, employing multiple layers of bonded blended fiber media in both stages and an outer coated closed-cell foam sleeve. The HF3 pushes to 0.001 ppm w/w maximum remaining oil content with a coated closed-cell foam pre-filter and flow disperser followed by matrix blended fiber media for ultra-fine coalescence. The HF1 adds stabilized activated carbon beds for oil vapor and hydrocarbon vapor absorption, with bonded micro-fine carbon particles in fiber media layers and outer foam sleeve to prevent fiber migration.

These filters suit compressed air systems in food processing, pharmaceutical manufacturing, electronics assembly, and precision machining where particulate and oil contamination control is critical. Designed life is 1000 hours under rated conditions. Buyers should confirm with Holysun Machinery Technology Co., Ltd the exact grade required for their application, applicable pressure ratings, connection sizes, and whether replacement element kits are supplied separately or as part of bulk orders.

Holysun Machinery Technology Co., Ltd is located at Sippc No. 1111 Zhennan Road, Shanghai 2003321, China. The supplier holds an imported tier classification and a harbor trust tier. The listing shows a 0.00 percent response rate with zero average response hours, which buyers should note when planning communication timelines. No additional verification signals, certifications, or factory audit details are provided in the source profile.

The company positions itself as a filtration equipment supplier with specific technical documentation for its compressed air filter range. Buyers should verify directly with Holysun Machinery Technology Co., Ltd whether the company manufactures these filters directly or sources them, what ISO certifications apply to production, and whether technical datasheets with pressure drop curves and test protocols are available. The Shanghai location offers logistical advantages for port access, though buyers should confirm export handling experience and Incoterms offered.