Our company’s fans fully meet your requirements for various parameters such as air volume and air pressure, and have a service life of over 25 years. The following are our product quality assurance measures:

From the entry of raw materials into the factory to the shipment of finished products, all processes are rigorously inspected in accordance with the ISO9001 international quality system standards. The production, inspection, testing, and acceptance of each process are jointly carried out by the Production Department, the Quality Inspection Department, and the Technical Department, with detailed records kept and filed. We provide full-process tracking, quality management, and service for every customer’s product. For example, the design and manufacture of fans comply with GB/T 3235 “Basic Types, Dimensions, Parameters, and Performance Curves of Fans” and GB/T 3235 “Basic Types, Dimensions, and Parameters of Fans.” Purchased motors must meet the technical requirements specified in GB/T 3836.1. Factory tests of finished products are conducted according to the GB/T 1236—2000 standard, covering pipeline network processing, measurement point layout, raw data collection, data calculation, and result output. Steel materials must be accompanied by material certification reports provided by the manufacturer, and we also commission nationally recognized, qualified inspection agencies to conduct material inspections. Only materials that meet the required standards can be used. For matched motors, the motor manufacturer must provide performance test reports and no-load test reports. We provide users with non-destructive testing reports for fan blades. Fan impellers undergo two-sided dynamic balancing tests in accordance with GB/T 9101 “Balancing of Fan Rotors,” and the factory’s dynamic balancing grade must reach G5.6 or higher—exceeding the national standard requirements. Upon shipment, we provide users with dynamic balancing test reports for the impellers. The exterior painting of fans is performed according to the technical requirements specified in JB/T 6886 “Technical Conditions for Fan Painting.” Fan nameplates are manufactured in compliance with the requirements of GB/T 13306 “Nameplates.”

The company primarily manufactures explosion-proof axial-flow main ventilators of the FBCZ series for mining applications, counter-rotating main ventilators of the FBCDZ series, positive-pressure local ventilators of the FB series, counter-rotating positive-pressure local ventilators of the FBD series, multi-stage counter-rotating ventilators of the FBD series, negative-pressure local ventilators of the FBC series, counter-rotating negative-pressure local ventilators of the FBCD series, tunnel fans of the SDF series, jet fans of the SDS series, and many other models with a complete range of specifications, capable of meeting the ventilation needs of various mines and tunnels.

Main product features:

1. The fan boasts high operational efficiency, significant energy-saving performance, and low noise levels.

2. Novel structure, easy to install and maintain;

3. Wide efficient operating range, small surge amplitude, and strong adaptability to complex roadways;

4. Operates smoothly and reliably, unaffected by ground subsidence.