Import Air Filter B222100000599 — Buy in wholesale FOB from Supplier in China

The B222100000599 is a primary engine air filter designed for Sany hydraulic excavators and truck models in the SY55 to SY95 size class, supplied by Duratech Industrial Group Limited from their Hong Kong-registered operations with China-based supply chain. This filter serves the engine air intake system of compact-to-mid-range construction equipment, protecting the diesel engine from silica dust, grit, and debris common in earthmoving applications. The part number B222100000599 is specific to Sany original equipment and replacement parts channels. Duratech positions itself as a supplier of OEM parts for SDLG, XCMG, Sany, LiuGong, LGMG, and Tonly machinery, indicating cross-brand parts coverage rather than exclusive Sany focus.

Construction equipment air filters for this application class typically use heavy-duty cellulose media with resin-impregnated pleats, steel or reinforced plastic end caps, and a polyurethane or rubber sealing element to withstand vibration and pulsating intake flow. The B222100000599 is expected to conform to Sany's internal specification for dust arrestance and air flow capacity, though the listing does not detail media grade, pleat count, or seal geometry. Operating conditions for SY-series excavators involve high dust loading in mining, quarry, and demolition environments, demanding higher dust-holding capacity than passenger vehicle filters. Standard service intervals for such equipment range from 250 to 500 operating hours, depending on the dust concentration in the job site atmosphere.

Buyers for this part include construction equipment rental fleets, mining contractors, authorised Sany dealers, and independent parts distributors serving the Chinese domestic and export aftermarket, particularly in Belt and Road infrastructure markets. Duratech Industrial Group Limited is registered in Hong Kong with a Central district address, suggesting a trading or holding company structure with supply chain managed from mainland China. The listing does not state manufacturing location, inventory position, or whether the filter is sourced directly from Sany's parts network or produced under licence. Trade buyers should confirm origin of manufacture, batch traceability, and whether the part carries Sany branding or is an aftermarket equivalent marked to the B222100000599 number.

Duratech Industrial Group Limited is registered at Unit 2508A, 25/F, Bank of America Tower, 12 Harcourt Road, Central, Hong Kong, with its operational supply chain based in mainland China. The company carries a Harbor trust tier and shows a 0.00% response rate with no recorded average response time. Its stated business is supplying parts suitable for construction and mining equipment, with emphasis on SDLG, XCMG, Sany, LiuGong, LGMG, and Tonly OEM parts. The Hong Kong registration and Central district office address suggest a trading company structure rather than a manufacturing entity, with parts sourced through authorised channels, licensed production, or aftermarket supply agreements.

The listing provides no information about establishment year, employee count, warehouse capacity, annual turnover, or major client references. There is no mention of quality system certification, factory audit status, or exclusive distribution agreements with the named equipment manufacturers. Buyers should verify whether Duratech holds authorised dealer or distributor status for Sany genuine parts, or whether the B222100000599 is an aftermarket equivalent. The company's description uses the phrase 'leading supplier' without supporting data; buyers should treat this as unverified marketing language and request proof of supply chain position. Due diligence should focus on mainland China operational contacts, inventory holding location, and whether the company can provide batch traceability and manufacturer certificates of conformity for critical wear parts.