Import Air Filter — Buy in Bulk from Supplier in China

Sino-UK Joint Venture Ningbo Shengda Sunshine Pneumatic Machinery Co., Ltd. supplies a multi-layer panel air filter intended for HVAC integration in residential, commercial, and light industrial environments. The filter employs a layered synthetic media construction with a rigid frame designed for insertion into standard ducted air handling units. The supplier's location in Ningbo, Zhejiang Province, places it within a mature manufacturing corridor with established logistics links to Ningbo-Zhoushan Port. The listing carries harbor trust verification with imported supplier tier classification, though no response activity is recorded.

The multi-layer configuration typically consists of a pre-filter layer, a main particulate layer, and a reinforcing scrim, with standard synthetic fibre media such as melt-blown polypropylene or electrostatically charged glass fibre. The frame is likely rigid cardboard or plastic for light-duty applications, though the exact material is not specified. The dust-holding capacity and initial efficiency depend on the media grade selected, with typical atmospheric dust spot efficiency ranging from 20 to 40 percent for standard pleated products in this category. Operating conditions are standard for synthetic media, with typical humidity limits of 80 percent relative humidity continuous.

Target buyers include HVAC original equipment manufacturers, building services contractors, and facilities management companies requiring replacement filter inventory. The filter's compatibility with multiple HVAC models suggests a focus on aftermarket supply. Buyers must confirm all commercial terms, including volume pricing, production lead time, and warranty conditions, directly with the supplier as these are not disclosed in the available data.

Sino-UK Joint Venture Ningbo Shengda Sunshine Pneumatic Machinery Co., Ltd. is registered at Hi-Tech Enterprise Park, Fenghua, Ningbo, Zhejiang, China, postal code 315504. The company name indicates a Sino-UK joint venture structure, though the specific UK partner, equity split, and date of formation are not disclosed in the listing. The supplier operates under an imported tier with harbor trust verification. Response metrics show zero percent response rate and zero average response hours, suggesting no active buyer engagement through monitored channels.

The listing provides no information about factory floor space, number of employees, annual turnover, production lines, or named customers. The reference to ISO and CE in the source description is generic and not confirmed with certificate numbers or scopes. Buyers should independently verify the joint venture structure, the nature and extent of UK involvement in technology or quality oversight, and the supplier's actual manufacturing scope versus trading activities.