Import 50 Inch Industrial Double Door Cone Ventilator — Buy in wholesale FOB from Supplier in China

This 50-inch industrial double door cone ventilator is a negative-pressure exhaust fan designed for high-volume air movement in agricultural and industrial environments. The 50-inch designation refers to the impeller diameter, a standard sizing convention for axial ventilation fans in the Chinese poultry and livestock equipment sector. The unit features a cone-shaped outlet shroud engineered to concentrate and direct airflow, with double-door shutters that seal via rubber gaskets when the fan is not operating. The impeller comprises six blades formed from 1.2 mm Krupp stainless steel with a BA (bright annealed) surface finish, claimed by the supplier to resist deformation and dust accumulation. A stated efficiency improvement of 15-20% over same-power conventional fans is attributed to the cone geometry and dual-door sealing system, though buyers should request independent test data to verify this figure.

The fan blade material specification of Krupp stainless steel indicates an austenitic grade, typically AISI 304 or 316, with the 1.2 mm thickness suggesting punched and formed construction rather than cast or machined blades. The BA finish provides a smooth, reflective surface that reduces particulate adhesion in dusty poultry house environments. The shutter system uses high-strength PVC with claimed oxidation resistance, while the hub assembly employs a die-cast aluminium-magnesium alloy wheel. The double-door configuration with rubber sealing is designed to prevent backdraft when multiple fans operate in a ventilated structure at staggered start times, a common requirement in tunnel-ventilated poultry houses. Noise level, motor power rating, and airflow rate in cubic metres per hour are not stated in the source data and should be confirmed directly with the supplier.

Primary applications include poultry house ventilation, livestock barn climate control, and industrial workshop exhaust where high air exchange rates and energy efficiency are prioritised. The 9FJ-E series designation positions this unit above the supplier's 9FJA/B lines in terms of claimed airflow volume and efficiency. Buyers should confirm whether the CE marking referenced in the source represents current, valid certification with applicable EN standards for industrial fans, or if it refers to historical testing. The supplier's location in Qingzhou, Shandong Province, places production within China's established agricultural machinery manufacturing cluster. Import considerations include verifying motor voltage and frequency compatibility, as Chinese-standard 380V/50Hz three-phase supply may require adaptation for 460V/60Hz markets.

Qingzhou Yongsheng Machinery Company is located at No. 1377, North of Yiwangfu Road, Qingzhou, Shandong Province 262500, China. The supplier holds a harbor trust tier, indicating verified business registration without additional assurance verification. Response metrics show 0.00% response rate with zero average response hours, which may reflect data collection timing, profile inactivity, or communication channel issues. Buyers should conduct direct outreach via multiple channels to confirm current operational status and sales engagement capability before planning procurement timelines.

The company profile does not disclose establishment year, production floor area, workforce size, annual revenue, or export market history. No quality management system certifications (ISO 9001, ISO 14001) or industry-specific accreditations are mentioned beyond the CE reference on the product. The product range centres on agricultural ventilation equipment, specifically cone fans and butterfly cone fans for poultry housing. The detailed technical description suggests engineering involvement in fan aerodynamics, though buyers should verify whether design is in-house or sourced from common regional platforms. For buyers requiring consistent after-sales support or spare parts availability, confirm whether the company maintains dedicated export staff and English-language technical documentation.