Updated Oct 28, 2026 · Public platform & industry data

Oct 28, 2026 Updated

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2026 Top 10 Forward And Reverse Non Pressure Air Door Manufacturers in China

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Top-rated Forward And Reverse Non Pressure Air Door suppliers, How to choose a Forward And Reverse Non Pressure Air Door manufacturer, Best Forward And Reverse Non Pressure Air Door companies in China

The top 10 Forward And Reverse Non Pressure Air Door manufacturers in China for 2026 are: Jining Wanda Machinery Equipment Co., Ltd, Middling coal Industry and Mining Materials Group Co., Ltd, Shandong Pumei Intelligent Equipment Co., Ltd, Shandong Shenhua Machinery Manufacturing Co., Ltd, Middling coal Industry and Mining Materials Group Co., Ltd, Shandong Zhonglu Heavy Industry Co., Ltd, Shandong Zhongkuang Intelligent Equipment Co., Ltd, Yimei Machinery Equipment Manufacturing Co., Ltd, Jining Wanli Machinery Manufacturing Co., Ltd, Shandong Dongda Electromechanical Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Jining Wanda Machinery Equipment Co., Ltd
Overall Score4.9 / 5
Est. Date2015-11-20
Registered Capital500K CNY

Jining Wanda Machinery Equipment Co., Ltd., registered at Room 201, 2nd Floor, No. 0101, No. 37, Junhe Yungu Jining Innovation Valley Science and Technology Park, Liuxing Street, High tech Zone, Jining City, Shandong Province, China. The registration authority is the Market Supervision Administration of Jining High tech Industrial Development Zone, and the legal representative is Hua Qiuli. The business scope includes the sales of industrial and mining machinery equipment and accessories, explosion-proof electrical appliances, lifting machinery equipment, track equipment and accessories, garden machinery and accessories, construction machinery and accessories; Import and export business of goods (excluding those restricted or prohibited by the state). (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Forward And Reverse Non Pressure Air Door, Reciprocating Coal Feeder, Pipeline Explosion Suppression Device

Top 2
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Middling coal Industry and Mining Materials Group Co., Ltd
Overall Score4.7 / 5
Est. Date2001-04-23
Registered Capital100000K CNY

Middling coal Industry and Mining Materials Group Co., Ltd., with its registered address at No. 11, North Kaiyuan Road, High tech Zone, Jining City, is registered by the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone, and its legal representative is Qu Qing. Its business scope includes general projects: special equipment manufacturing (excluding licensed professional equipment manufacturing); Sales of mechanical equipment; Mining machinery manufacturing; Sales of mining machinery; Mechanical parts and component processing; Sales of mechanical parts and components; Manufacturing of mechanical and electrical equipment; Sales of electrical and mechanical equipment; Research and development of intelligent robots; Sales of intelligent robots; Manufacturing of intelligent unmanned aerial vehicles; Sales of intelligent unmanned aerial vehicles; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Manufacturing of instruments and meters; Sales of instruments and meters; Manufacturing of electronic vacuum devices; Sales of electronic vacuum devices; Manufacturing of electronic components; Retail of electronic components; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Sales of railway transportation infrastructure equipment; Electronic product sales; Sales of chemical products (excluding licensed chemical products); Sales of lubricating oil; Sales of household appliances; Sales of metal products; Manufacturing of non-metallic mineral products; Sales of mobile communication devices; Sales of IoT devices; Wholesale of hardware products; Retail of hardware products; Sales of labor protection equipment; Sales of building materials; Sales of metal materials; Sales of agricultural and sideline products; Research and development of emerging energy technologies; Specialized equipment repair; Mechanical equipment leasing; Software development; Software sales; Information system integration services; Intelligent control system integration; Domestic cargo transportation agency (except for projects that need to be approved according to law, independently carry out business activities according to law with the business license): Internet information service; Import and export of goods; Technology import and export; Manufacturing of railway transportation infrastructure equipment; Road freight transportation (excluding dangerous goods) (for projects that require approval by law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results). Core products: Forward And Reverse Non Pressure Air Door, Large-Scale Equipment, Spraying Equipment

Top 3
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Shandong Pumei Intelligent Equipment Co., Ltd
Overall Score4.7 / 5
Est. Date2020-04-20
Registered Capital3000K CNY

Shandong Pumei Intelligent Equipment Co., Ltd., with its registered address located 1000 meters west of the town government in Shilipu Street, Rencheng District, Jining City, Shandong Province, is registered with the Market Supervision Administration of Rencheng District, Jining City. The legal representative is Li Qingrong, and the business scope includes general projects such as sales of intelligent robots; Sales of intelligent instruments and meters; Mechanical parts and component processing; Mining machinery manufacturing; Sales of mining machinery; Installation services for ordinary mechanical equipment; Installation and maintenance of industrial robots; Sales of railway transportation infrastructure equipment; Sales of railway transportation equipment; Sales of mechanical parts and components; Sales of hydraulic power machinery and components; Sales of construction machinery; Sales of agricultural machinery; Sales of specialized equipment for environmental protection; Sales of firefighting equipment; Sales of instruments and meters; Retail of computer software, hardware, and auxiliary equipment; Wholesale of computer software, hardware, and auxiliary equipment; Software sales; Software development; Sales of lubricating oil; Import and export of goods; Technology import and export; Manufacturing of pneumatic power machinery and components; Sales of pneumatic power machinery and components. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Forward And Reverse Non Pressure Air Door, Supporting Equipment, Mining Equipment

TOP4
Shandong Shenhua Machinery Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2014-11-11
Registered Capital30000K CNY

Shandong Shenhua Machinery Manufacturing Co., Ltd., with its registered address at No. 11 Kaiyuan Road, Jining High tech Zone, is registered with the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone. The legal representative is Han Yong, and its business scope includes general projects: manufacturing of construction machinery; Sales of construction machinery; Manufacturing of specialized equipment for geological exploration; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of specialized equipment for geological exploration; Sales of rail transit engineering machinery and components; Mechanical equipment research and development; Sales of mechanical equipment; Mining machinery manufacturing; Sales of mining machinery; Manufacturing of hydraulic power machinery and components; Sales of hydraulic power machinery and components; Sales of special equipment; Sales of metal materials; Sales of steel reinforcement products for construction; Sales of new energy vehicles as a whole; Sales of generators and generator sets; General equipment manufacturing (excluding special equipment manufacturing); Motor manufacturing; Sales of building materials; Manufacturing of material handling equipment; Sales of material handling equipment; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Forward And Reverse Non Pressure Air Door, Ventilation And Safety Equipment, Petroleum Equipment

TOP5
Middling coal Industry and Mining Materials Group Co., Ltd
Overall Score4.6 / 5
Est. Date2001-04-23
Registered Capital100000K CNY

Middling coal Industry and Mining Materials Group Co., Ltd., with its registered address at No. 11, North Kaiyuan Road, High tech Zone, Jining City, is registered by the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone, and its legal representative is Qu Qing. Its business scope includes general projects: special equipment manufacturing (excluding licensed professional equipment manufacturing); Sales of mechanical equipment; Mining machinery manufacturing; Sales of mining machinery; Mechanical parts and component processing; Sales of mechanical parts and components; Manufacturing of mechanical and electrical equipment; Sales of electrical and mechanical equipment; Research and development of intelligent robots; Sales of intelligent robots; Manufacturing of intelligent unmanned aerial vehicles; Sales of intelligent unmanned aerial vehicles; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Manufacturing of instruments and meters; Sales of instruments and meters; Manufacturing of electronic vacuum devices; Sales of electronic vacuum devices; Manufacturing of electronic components; Retail of electronic components; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Sales of railway transportation infrastructure equipment; Electronic product sales; Sales of chemical products (excluding licensed chemical products); Sales of lubricating oil; Sales of household appliances; Sales of metal products; Manufacturing of non-metallic mineral products; Sales of mobile communication devices; Sales of IoT devices; Wholesale of hardware products; Retail of hardware products; Sales of labor protection equipment; Sales of building materials; Sales of metal materials; Sales of agricultural and sideline products; Research and development of emerging energy technologies; Specialized equipment repair; Mechanical equipment leasing; Software development; Software sales; Information system integration services; Intelligent control system integration; Domestic cargo transportation agency (except for projects that need to be approved according to law, independently carry out business activities according to law with the business license): Internet information service; Import and export of goods; Technology import and export; Manufacturing of railway transportation infrastructure equipment; Road freight transportation (excluding dangerous goods) (for projects that require approval by law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results). Core products: Forward And Reverse Non Pressure Air Door, Large-Scale Equipment, Supporting Equipment

TOP6
Shandong Zhonglu Heavy Industry Co., Ltd
Overall Score4.5 / 5
Est. Date2023-09-18
Registered Capital50000K CNY

Shandong Zhonglu Heavy Industry Co., Ltd., with its registered address at No. 90 Fuxin Road, Fuxin Street, Fushan District, Yantai City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Fushan District, Yantai City. Its legal representative is Ma Ye, and its business scope includes general projects such as the manufacturing of construction machinery; Manufacturing of metal structures; Manufacturing of new energy prime mover equipment; CNC machine tool manufacturing; Bearing manufacturing; Agricultural machinery manufacturing; Sales of mechanical and electrical equipment; Sales of new energy vehicles as a whole; Container manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of metal materials; Sales of construction machinery; Sales of special equipment; Steel rolling processing; Manufacturing of specialized equipment for environmental protection; Manufacturing of material handling equipment; Sales of metal structures; Manufacturing of metal cutting and welding equipment; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of high-speed precision gear transmission devices; Manufacturing of specialized machinery for the production of building materials; Mechanical parts and component processing; Sales of mechanical equipment; Mining machinery manufacturing; Manufacturing of metal processing machinery; Industrial robot manufacturing; Sales of mechanical parts and components; Manufacturing of general components; Manufacturing of electronic components; Sales of mining machinery; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed projects: construction engineering design; Construction project construction. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Forward And Reverse Non Pressure Air Door, Mechanical Hardware, Operating Equipment

TOP7
Shandong Zhongkuang Intelligent Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2019-04-22
Registered Capital10000K CNY

Shandong Zhongkuang Intelligent Equipment Co., Ltd., with its registered address located 200 meters north of the intersection of Shanbo Road and Taihang Mountain Road in Jiezhuang Street, High tech Zone, Jining City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone, and its legal representative is Jia Shuhua. Its business scope includes general projects such as mining machinery manufacturing; Sales of mining machinery; Manufacturing of metal chains and other metal products; Sales of metal products; Agricultural machinery manufacturing; Manufacturing of construction machinery; Sales of railway transportation infrastructure equipment; Sales of railway transportation equipment; Manufacturing of specialized instruments and meters for environmental monitoring; Sales of specialized instruments and meters for environmental monitoring; Manufacturing of specialized equipment for environmental protection; Import and export of goods; Sales of firefighting equipment; Sales of supply instruments and meters; Retail of computer software, hardware, and auxiliary equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of mechanical equipment. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Forward And Reverse Non Pressure Air Door, Non Pressure Air Door, Manned Device

TOP8
Yimei Machinery Equipment Manufacturing Co., Ltd
Overall Score4.5 / 5
Est. Date2012-08-08
Registered Capital50000K CNY

Yimei Machinery Equipment Manufacturing Co., Ltd., registered at No. 11 Kaiyuan Road North, Jining High tech Zone, with the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone as the registration authority and Qu Qing as the legal representative, engages in the manufacturing and sales of mechanical equipment, mechanical electrical appliances, and accessories; Import and export business of goods and technology (excluding goods and technology prohibited or restricted by the state); Wholesale and retail of electrical machinery and equipment, hardware and chemical products (excluding hazardous chemicals), steel wire ropes, mining equipment, and steel; Installation of coal mine machinery and equipment. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Forward And Reverse Non Pressure Air Door, Mechanical Hardware, Mining Door

TOP9
Jining Wanli Machinery Manufacturing Co., Ltd
Overall Score4.4 / 5
Est. Date2022-12-08
Registered Capital5000K CNY

Jining Wanli Machinery Manufacturing Co., Ltd., with its registered address at Workshop 4-1, Jining Xuguang Machinery Co., Ltd., Liuhou Village, Nanzhang Street, Rencheng District, Jining City, Shandong Province, China. The registered authority is the Market Supervision Administration of Rencheng District, Jining City, and the legal representative is Hua Qiuli. Its business scope includes general projects such as metal processing machinery manufacturing; Sales of metal products; Manufacturing of construction machinery; Mechanical parts and component processing; Sales of mechanical equipment; Mining machinery manufacturing; Manufacturing of specialized equipment for agricultural and sideline food processing; Mechanical equipment research and development; Sales of construction machinery; Sales of firefighting equipment; Sales of instruments and meters. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Forward And Reverse Non Pressure Air Door, Belt Conveyor Series, Mining Tensioning Equipment

TOP10
Shandong Dongda Electromechanical Co., Ltd
Overall Score4.4 / 5
Est. Date2008-04-25
Registered Capital56890K CNY

Shandong Dongda Electromechanical Co., Ltd. is registered at Shanbo Road South and Zhixue Road West, Jizou Science and Technology Park, High tech Zone, Jining City, Shandong Province. The registration authority is the Market Supervision Administration of Jining High tech Industrial Development Zone, and the legal representative is Sun Hua. The business scope includes licensed projects: electrical installation services. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses issued by relevant departments.) General project: Mining machinery manufacturing; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of general components; Manufacturing of mechanical and electrical equipment; Manufacturing of electronic components; Manufacturing of distribution switch control equipment; Manufacturing of other electronic devices; Research and development of electronic specialized materials; Mechanical equipment research and development; Research and development of distribution switch control equipment; Information consulting services (excluding licensed information consulting services); Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Retail of electronic components; Sales of mining machinery; Sales of mechanical and electrical equipment; Sales of mechanical parts and components; Sales of special equipment; Sales of electronic components and electromechanical equipment; Sales of power electronic components; Sales of electronic specialized equipment; Electronic product sales; Sales of distribution switch control equipment; Integrated circuit sales; Sales of metal structures; Sales of rubber products; Operation of wires and cables; Sales of lubricating oil; Maintenance of electronic and mechanical equipment (excluding special equipment); Electrical equipment repair; Specialized equipment repair; General equipment repair; Installation services for ordinary mechanical equipment; Technology import and export; Import and export of goods; Non residential real estate leasing. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Forward And Reverse Non Pressure Air Door, Explosion-Proof Junction Box, Pneumatic Diaphragm Pump

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Jining Wanda Machinery Equipment Co., Ltd2015-11-20Forward And Reverse Non Pressure Air Door, Reciprocating Coal Feeder, Pipeline Explosion Suppression Device500K CNYSupported
Middling coal Industry and Mining Materials Group Co., Ltd2001-04-23Forward And Reverse Non Pressure Air Door, Large-Scale Equipment, Spraying Equipment100000K CNYNot Supported
Shandong Pumei Intelligent Equipment Co., Ltd2020-04-20Forward And Reverse Non Pressure Air Door, Supporting Equipment, Mining Equipment 3000K CNYSupported
Shandong Shenhua Machinery Manufacturing Co., Ltd2014-11-11Forward And Reverse Non Pressure Air Door, Ventilation And Safety Equipment, Petroleum Equipment30000K CNYNot Supported
Middling coal Industry and Mining Materials Group Co., Ltd2001-04-23Forward And Reverse Non Pressure Air Door, Large-Scale Equipment, Supporting Equipment100000K CNYNot Supported
Shandong Zhonglu Heavy Industry Co., Ltd2023-09-18Forward And Reverse Non Pressure Air Door, Mechanical Hardware, Operating Equipment50000K CNYNot Supported
Shandong Zhongkuang Intelligent Equipment Co., Ltd2019-04-22Forward And Reverse Non Pressure Air Door, Non Pressure Air Door, Manned Device10000K CNYSupported
Yimei Machinery Equipment Manufacturing Co., Ltd2012-08-08Forward And Reverse Non Pressure Air Door, Mechanical Hardware, Mining Door50000K CNYNot Supported
Jining Wanli Machinery Manufacturing Co., Ltd2022-12-08Forward And Reverse Non Pressure Air Door, Belt Conveyor Series, Mining Tensioning Equipment5000K CNYSupported
Shandong Dongda Electromechanical Co., Ltd2008-04-25Forward And Reverse Non Pressure Air Door, Explosion-Proof Junction Box, Pneumatic Diaphragm Pump56890K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • In the actual procurement process of forward and reverse non pressure air doors, it is recommended to prioritize checking key technical parameters such as wind pressure bearing range and sealing performance to ensure that they match the working requirements of the mine or tunnel ventilation system.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support. These suppliers usually have more stable delivery capabilities in the coal mining or underground engineering fields.
  • For high gas mines or bi-directional ventilation scenarios, the bi-directional opening and closing function and impact resistance design of forward and reverse non pressure dampers are key evaluation items, and the appropriate model needs to be selected based on specific scenarios.
  • Different specifications of forward and reverse non pressure air doors are suitable for environments with significant differences in tunnel width. Before procurement, it is necessary to clarify the size limitations of the installation space to avoid secondary modifications due to structural incompatibility.

Knowledge Base

Q

Baidu AiGou has found pictures of different categories of positive and negative pressure free air doors for you, taking you to appreciate the diversity and uniqueness of positive and negative pressure free air doors. At the same time, we also recommend high-quality positive and negative pressure free air door products for you, allowing you to easily and quickly find the most suitable positive and negative pressure free air door for yourself when making purchases.

Q

Baidu AiGou has found pictures of different categories of positive and negative pressure free air doors for you, taking you to appreciate the diversity and uniqueness of positive and negative pressure free air doors. At the same time, we also recommend high-quality positive and negative pressure free air door products for you, allowing you to easily and quickly find the most suitable positive and negative pressure free air door for yourself when making purchases.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs