Import 500-0047-130 Willett 43s 46p Main Filter — Buy in Bulk from Supplier in China

The 500-0047-130 main filter is a replacement ink filtration component engineered for integration with Willett 43S and 46P continuous inkjet (CIJ) printer models. Supplied by Guangzhou Hongxin Machinery Co., Ltd. from their facility in Tianhe District, Guangzhou, this filter sits within the main ink delivery line and functions to remove particulate contaminants, gelled pigment aggregates, and microbiological growth that would otherwise compromise printhead nozzle performance. The supplier states the filter offers high filtration efficiency and extended service life, though specific micron ratings, flow rates, and differential pressure limits are not published and must be requested directly from Hongxin.

CIJ main filters are typically constructed with a multi-layer depth medium, commonly borosilicate glass microfibre or a melt-blown polypropylene composite, supported by a stainless steel or polypropylene inner core and outer mesh for mechanical stability. Standard filtration ratings for this class of CIJ main filter range from 5 to 20 micrometres absolute, with Beta ratio performance typically exceeding 1000 at the rated particle size. The filter housing is generally injection-moulded polypropylene or nylon, with dual O-ring seals in EPDM or Viton depending on ink solvent compatibility. Hongxin has not confirmed the exact media grade, seal material, or housing polymer for this 500-0047-130 variant.

This component serves packaging lines, label converters, pharmaceutical coding operations, and beverage canning facilities that rely on Willett CIJ systems for lot, date, and barcode marking. Buyers include maintenance departments of production facilities, independent CIJ service contractors, and spare parts distributors serving the South-East Asia and Middle East markets. When sourcing from Guangzhou Hongxin, importers should verify that the filter media is compatible with their specific ink formulation (MEK-based, ethanol-based, or acetone-based), as solvent incompatibility can cause seal swelling and media degradation leading to bypass failure.

Guangzhou Hongxin Machinery Co., Ltd. operates from Unit 1, 8F, Block H, Tangde Garden, at 341 Tangde South Road in Tianhe District, Guangzhou, placing the company in a commercial-residential mixed zone rather than a dedicated industrial park. The supplier holds an imported-tier and harbor-tier classification, suggesting some combination of imported goods handling and platform screening, though the exact meaning of these tiers is not elaborated. Like the first listing, Hongxin shows a 0.00 percent response rate and zero average response hours, indicating no platform-mediated buyer communication has been recorded.

The listing does not state when Hongxin was established, how many employees it maintains, what quality management system it follows, or whether it manufactures filters in-house or sources from an OEM factory. No ISO 9001, ISO 14001, or industry-specific certifications are mentioned. The company address is an eighth-floor unit in a garden complex, which may indicate a trading office or light assembly operation rather than full manufacturing. Buyers should verify the actual scope of Hongxin's operations, request factory audit permission, and confirm whether the 500-0047-130 filter is stocked inventory or produced against order with associated lead times.