Main features of mine main ventilation fans
1. Impeller arrangement: A direct-drive structure is adopted, in which the impeller is fixed to the hub via a key connection through the shaft.
2. The complete unit of the fan includes a variable-diameter connecting duct, a flow collector, an electric/manual butterfly valve (including electric heating), a connecting duct, a primary-stage main unit, a secondary-stage main unit, an explosion-proof frequency converter motor, a diffuser, a round-to-square transition piece, a silencer, a diffusion tower with braking device, and support rollers, among other components.
3. The fan is equipped with a combined manual and automatic braking device that can achieve normal startup and reverse airflow within 5 minutes, with the reverse airflow rate exceeding 60% of the forward airflow rate.
4. During fan design, we optimize the selection based on the parameters provided by the user and carry out personalized design to ensure that the fan operates with high efficiency both in the initial and later stages.
5. The fan casing is fabricated by welding Q235 steel plates. At the factory, it is primed twice with epoxy-rich zinc primer and coated once with epoxy zinc topcoat. All bolts are galvanized.
6. The silencing perforated plates are all made of galvanized steel, effectively extending their service life and reducing subsequent replacement costs.

Shanxi Jin Yun’an Fan Co., Ltd. (formerly Shanxi Yun’an Fan Manufacturing Co., Ltd.) is located in the Yuncheng Economic and Technological Development Zone. The company was established in 2013 with a registered capital of 50 million yuan and covers an area of 46,000 square meters. Its fixed assets exceed 36 million yuan, and it currently employs over 120 people, including 20 engineering and technical personnel. The company maintains long-term collaborative relationships with research institutions such as Northwestern Polytechnical University, Taiyuan University of Technology, and China University of Mining and Technology, engaging in technological R&D. It also recruits experts and professors as R&D consultants to stay abreast of industry development trends and continuously strengthen its technological innovation capabilities. The company is equipped with complete production and testing facilities, featuring more than 180 advanced processing and manufacturing devices, including laser cutting machines, automatic welding equipment, CNC bending machines, shearing machines, coiling machines, CNC lathes, dynamic balancing machines, and fan performance testing laboratories. It is a specialized fan manufacturer integrating R&D, production, sales, and after-sales service.

The company’s core business focuses on the design, R&D, and manufacturing of various types of ventilators and their complementary products for mines, non-coal mines, rail transit systems, and other applications. Its product portfolio includes 38 series of ventilators—such as the FB(D) series, FBC(D)Z series, FKZ series, rail transit SDS series, and tunnel SDF series—comprising more than 3,000 different specifications. Complementary products include self-resetting explosion-proof doors for vertical and inclined shafts, louver-type automatic regulating dampers, side-opening (vertical) automatic regulating dampers, butterfly valves, silencers, online monitoring and fault diagnosis systems for main ventilators, wind-reversing systems that allow uninterrupted ventilation, and intelligent lubrication systems. These products comprehensively meet the ventilation needs of mines and are exported to diverse domestic sectors as well as international markets including South Africa, Russia, and Southeast Asia.

In recent years, the company has successively been awarded honors such as “Yuncheng Enterprise Technology Center,” “Outstanding Enterprise of Yuncheng,” “Demonstration Enterprise for Intellectual Property in Yuncheng,” and “Innovative Small and Medium-sized Enterprise.” The company has obtained certifications including “ISO9001 Quality Management System Certification,” “ISO14001 Environmental Management System Certification,” and “ISO45001 Occupational Health and Safety Management System Certification.” Its products have also passed the “China National Compulsory Product Certification,” and the company holds numerous patents. With advanced process equipment, strong technical capabilities, excellent product quality, and a comprehensive service system, the company has earned unanimous recognition and praise from a wide range of customers. In particular, in recent years, the company has focused on launching environmentally friendly, low-noise fans into the market, achieving rapid growth and becoming a well-known enterprise that leads the industry in fan technology.

Where there’s sincerity, even metal and stone can be moved. Adhering to the principles of “people-oriented and technology-driven enterprise development” and the belief that “innovation paves the way to the future,” Jin Yun’an Company, backed by its robust technological capabilities, advanced CNC precision machining equipment, an outstanding team of talented professionals, and cutting-edge management practices, remains fully committed to providing users with high-quality mining ventilation fans, thereby making greater contributions to the safe production and sustainable development of China’s mining industry.

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.