Updated Oct 4, 2026 · Public platform & industry data

Oct 4, 2026 Updated

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2026 Top 10 Manual Air Door Manufacturers in China

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Top-rated Manual Air Door suppliers, How to choose a Manual Air Door manufacturer, Best Manual Air Door companies in China

The top 10 Manual Air Door manufacturers in China for 2026 are: Shandong Zhongtan Intelligent Equipment Co., Ltd, Jiangsu Jinlong Machinery Industry Co., Ltd, Middling coal Agriculture and Forestry Technology Co., Ltd, Shandong Century Taida Mining Equipment Co., Ltd, Middling coal Industry and Mining Materials Group Co., Ltd, Shandong Zhonglu Heavy Industry Co., Ltd, Shandong Shengmei Mining Machinery Co., Ltd, Shandong Mining and Mining Equipment Co., Ltd, Shandong Shenhua Machinery Manufacturing Co., Ltd, Shandong Xiangcheng Industrial and Mining Equipment 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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Shandong Zhongtan Intelligent Equipment Co., Ltd
Overall Score4.9 / 5
Est. Date2022-03-01
Registered Capital10000K CNY

Shandong Zhongtan Intelligent Equipment Co., Ltd., with its registered address at Room 810, Xieying Science and Technology Building, Xianying Street, Rencheng District, Jining City, Shandong Province, is registered with the Market Supervision Administration of Rencheng District, Jining City. The legal representative is Xi Laiwei, and the business scope includes general projects: manufacturing of intelligent basic manufacturing equipment; Mining machinery manufacturing; Sales of mining machinery; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of mechanical equipment; Engineering and technical research and experimental development; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Software development; Software sales; Manufacturing of intelligent instruments and meters; Sales of intelligent basic manufacturing equipment; Sales of railway transportation infrastructure equipment; Import and export of goods; Technology import and export; Sales of photovoltaic equipment and components; Wood sales; Wood processing. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Manufacturing of railway transportation infrastructure equipment. (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: Manual Air Door, Lifting Equipment, Instrumentation And Meters

Top 2
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Jiangsu Jinlong Machinery Industry Co., Ltd
Overall Score4.7 / 5
Est. Date2004-04-07
Registered Capital50080K CNY

Jiangsu Jinlong Machinery Industry Co., Ltd. is registered in Shuguang Industrial Park, Baimi Town, Jiangyan District, Taizhou City. The registration authority is the Data Bureau of Jiangyan District, Taizhou City, and the legal representative is Xu Depei. Its business scope includes the manufacturing, processing, and sales of textile machinery and accessories, metal hoses, compensators, air doors, spring supports and hangers, polytetrafluoroethylene products, heat exchangers, filters, aluminum based copper-clad laminates, and general mechanical components. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments) Licensed project: Manufacturing of special equipment; Special equipment inspection and testing; Installation, renovation, and repair of special equipment; Special equipment design (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval results) General project: sales of special equipment; Mechanical parts and component processing; Sales of mechanical parts and components; Sales of rubber products; Sales of plastic products (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law). Core products: Manual Air Door, Bellows Expansion Joint, Stainless Steel Metal Hose

Top 3
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Middling coal Agriculture and Forestry Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2018-01-13
Registered Capital50000K CNY

Middling coal Agriculture and Forestry Technology Co., Ltd., with its registered address at 308, Floor 3, Block A, Zhongdong Building, No. 10006, Jiankang East Street, Qingchi Street Mall Community, Weifang High tech Zone, Shandong Province, is registered by the Market Supervision Administration of Weifang High tech Industrial Development Zone, and its legal representative is Zhang Zhenhang. Its business scope includes general projects: research and development of harmless utilization technology for agricultural and forestry waste recycling; Sales of mechanical equipment; Sales of agricultural machinery; Sales of agricultural, forestry, animal husbandry and fishery machinery accessories; Sales of mining machinery; Sales of railway transportation infrastructure equipment; Sales of construction machinery; Sales of rail transit engineering machinery and components; Sales of mechanical and electrical equipment; Sales of electrical equipment; Sales of distribution switch control equipment; Sales of instruments and meters; Sales of electronic vacuum devices; Retail of electronic components; Sales of high-speed rail equipment and accessories; Sales of water transportation equipment; Electronic product sales; Sales of intelligent robots; Sales of industrial robots; Sales of intelligent unmanned aerial vehicles; Sales of mechanical parts and components; Sales of chemical products (excluding licensed chemical products); Sales of lubricating oil; Sales of metal products; Sales of non-metallic minerals and products; Sales of specialized instruments and meters for agriculture, forestry, animal husbandry, and fishing; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of specialized machinery for agriculture, forestry, animal husbandry, animal husbandry, and fisheries; Fruit cultivation; Crop pest and disease control services; General cargo warehousing services (excluding projects requiring permits and approvals such as hazardous chemicals); 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 project: retail of pesticides. (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: Manual Air Door, Steel, Operating Equipment

TOP4
Shandong Century Taida Mining Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2012-09-13
Registered Capital21010K CNY

Shandong Century Taida Mining Equipment Co., Ltd., with its registered address located in Yandian Town Industrial Park, Yanzhou District, Jining City (east of Jiyang Road), is registered with the Market Supervision and Administration Bureau of Yanzhou District, Jining City. The legal representative is Chen Shengchang, and its business scope includes the production, processing, and research and development of mining fireproof doors, waterproof doors, explosion-proof doors, refuge chamber doors, and shock wave resistant doors; Production, installation, and commissioning of auxiliary operating equipment for mining and power plant belt conveyors, buffer beds, buffer bars, cleaners, chutes, and guide chutes; Production of track equipment, sleepers, rail sleeper accessories, track accessories, and derailleurs; Production and sales of mining support equipment and building materials (excluding wood), mining equipment, power plant equipment, engineering equipment, environmental protection equipment, and mining electrical equipment; Undertake various drawing design and processing, as well as material processing. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Manual Air Door, Buffer Strip, Buffer Bed

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: Manual Air Door, Mechanical Hardware, 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: Manual Air Door, Petroleum Equipment, Smart Equipment

TOP7
Shandong Shengmei Mining Machinery Co., Ltd
Overall Score4.5 / 5
Est. Date2014-04-01
Registered Capital20000K CNY

Shandong Shengmei Mining Machinery Co., Ltd. is registered in Yandian Industrial Park, Yanzhou District, Jining City, Shandong Province. The registration authority is the Yanzhou District Market Supervision Administration of Jining City, and the legal representative is Chen Shengchang. Its business scope includes the processing, production, and research and development of mining safety protection equipment, mining doors, tunnel support tools and building materials (excluding wood), and auxiliary operation equipment for mining and power plant belt conveyors; Production of mining track equipment, mining machinery equipment and accessories; Sales of mining pneumatic equipment, hydraulic equipment and accessories (excluding special equipment), hardware tools, steel, mining electrical equipment, chemical products (excluding hazardous chemicals), and environmental protection equipment; Research and development, production, installation, and commissioning of airtight doors, explosion-proof doors, buffer beds, and buffer strips; Undertake various mechanical processing. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Manual Air Door, Buffer Strip, Metal Roof Beam

TOP8
Shandong Mining and Mining Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2020-03-13
Registered Capital20000K CNY

Shandong Mining and Mining Equipment Co., Ltd., with its registered address at Workshop 2, Northwest Gate South, Zone A, Seventh Industrial Park, Huangtun Street, High tech Zone, Jining City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Jining High tech Industrial Development Zone. The legal representative is Shao Pengcheng, and its business scope includes general projects such as mining machinery manufacturing; Sales of mining machinery; Sales of mechanical parts and components; Sales of railway transportation equipment; Sales of hydraulic power machinery and components; Sales of construction machinery; Sales of specialized machinery for agriculture, forestry, animal husbandry, animal husbandry, and fisheries; Sales of agricultural, forestry, animal husbandry and fishery machinery accessories; Sales of specialized equipment for environmental protection; Sales of labor protection equipment; Sales of firefighting equipment; Sales of security equipment; Sales of instruments and meters; Sales of rubber products; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Installation services for ordinary mechanical equipment; Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Professional design services; Manufacturing of hydraulic power machinery and components; Manufacturing of construction machinery; Manufacturing of specialized machinery for agriculture, forestry, animal husbandry, and fisheries; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of specialized equipment for environmental protection; Production of labor protection equipment; Manufacturing of security equipment; Manufacturing of metal products for safety and firefighting purposes; Manufacturing of instruments and meters; Rubber product manufacturing. (In addition to the projects that need to be approved according to law, business activities shall be carried out independently according to law with the business license) Permitted projects: Internet information services; Manufacturing of railway transportation infrastructure equipment. (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: Manual Air Door, Sleeper, Instrumentation And Meters

TOP9
Shandong Shenhua Machinery Manufacturing Co., Ltd
Overall Score4.4 / 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: Manual Air Door, Large-Scale Equipment, Ventilation And Safety Equipment

TOP10
Shandong Xiangcheng Industrial and Mining Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2023-02-20
Registered Capital3000K CNY

Shandong Xiangcheng Industrial and Mining Equipment Co., Ltd., with its registered address at No. 88, storefront of Hengliang Logistics Park, Yandian Town, Yanzhou District, Jining City, Shandong Province, is registered with the Market Supervision Administration of Yanzhou District, Jining City. The legal representative is Sun Xia, and the business scope includes general projects: sales of mining machinery; Sales of construction machinery; Sales of specialized equipment for environmental protection; Sales of rubber products; Sales of railway transportation equipment; Sales of metal products; Sales of metal chains and other metal products; Sales of supply instruments and meters; Sales of specialized instruments and meters for environmental monitoring; Sales of mechanical equipment; Sales of firefighting equipment; Retail of computer software, hardware, and auxiliary equipment; Sales of railway transportation infrastructure 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: Manual Air Door, Lifting Equipment, Rescue Equipment

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shandong Zhongtan Intelligent Equipment Co., Ltd2022-03-01Manual Air Door, Lifting Equipment, Instrumentation And Meters10000K CNYSupported
Jiangsu Jinlong Machinery Industry Co., Ltd2004-04-07Manual Air Door, Bellows Expansion Joint, Stainless Steel Metal Hose50080K CNYSupported
Middling coal Agriculture and Forestry Technology Co., Ltd2018-01-13Manual Air Door, Steel, Operating Equipment50000K CNYNot Supported
Shandong Century Taida Mining Equipment Co., Ltd2012-09-13Manual Air Door, Buffer Strip, Buffer Bed21010K CNYSupported
Middling coal Industry and Mining Materials Group Co., Ltd2001-04-23Manual Air Door, Mechanical Hardware, Supporting Equipment100000K CNYNot Supported
Shandong Zhonglu Heavy Industry Co., Ltd2023-09-18Manual Air Door, Petroleum Equipment, Smart Equipment50000K CNYNot Supported
Shandong Shengmei Mining Machinery Co., Ltd2014-04-01Manual Air Door, Buffer Strip, Metal Roof Beam20000K CNYSupported
Shandong Mining and Mining Equipment Co., Ltd2020-03-13Manual Air Door, Sleeper, Instrumentation And Meters20000K CNYSupported
Shandong Shenhua Machinery Manufacturing Co., Ltd2014-11-11Manual Air Door, Large-Scale Equipment, Ventilation And Safety Equipment30000K CNYNot Supported
Shandong Xiangcheng Industrial and Mining Equipment Co., Ltd2023-02-20Manual Air Door, Lifting Equipment, Rescue Equipment3000K CNYSupported

Purchasing Guide

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

  • In the actual procurement process of manual air dampers, it is recommended to prioritize confirming key technical parameters such as damper size, material, and pressure resistance level to ensure compatibility with existing pipeline systems or equipment.
  • For application scenarios in high-temperature or corrosive environments such as metallurgy and chemical engineering, manual dampers made of stainless steel or special coatings should be selected to extend their service life and ensure sealing performance.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information.
  • When selecting a manual air damper, the impact of different valve plate designs (such as multi blade or single blade structures) on airflow control can be compared based on the accuracy requirements of air volume adjustment.

Knowledge Base

Q

The manual emergency operation of fully automatic air doors is mainly aimed at special situations such as electronic control system failures and power outages. The steps are as follows: Firstly, prepare emergency tools, including matching manual hydraulic pumps, special wrenches, anti slip gloves, etc., in advance to ensure that the tools are in good condition and placed in a convenient location near the air door to avoid delays in operation due to tool shortages in emergency situations. Secondly,

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