Shandong Rongli Power Mechanical And Electrical Technology Co., Ltd. : Your professional Mining electromechanical product manufacturer in China
Shandong Rongli Power Mechanical And Electrical Technology Co., Ltd., established in 2013, is a professional manufacturer of mining electromechanical products. From its initial products such as mining energy-saving lamps and explosion-proof switches, the company has evolved to offer advanced systems including automatic dust suppression devices, electronic control systems, and environmentally friendly production lines.
Wide Product Range
We supply a comprehensive range of mining equipment, including fully wireless dust suppression spray systems, explosion-proof switches, energy-saving lamps, and signaling devices.
Versatile Applications
Our products are designed for critical mining applications, such as automated dust suppression in tunnels and transfer points, ventilation control via automatic dampers, and personnel/vehicle detection for safety monitoring.
Advanced Production Equipment
We possess advanced production equipment for mining winches, mining rail vehicles, and mining dampers, including manufacturing and welding equipment.
Guaranteed Quality
All our equipment holds the necessary mining safety certificates, explosion-proof certificates, and CCC certification.
Introduction
Mine doors are structural doors used for mine ventilation, personnel access, and material separation. They maintain a complete ventilation environment within the mine while controlling the safe passage of personnel, equipment, and materials.
Specifications
|
Product name |
Mine doors |
|
Enclosure class |
IP65 |
|
Operating voltage |
3x230/400 V 50 Hz - 3x200V/60Hz - 3x460/575V 60Hz |
|
Control voltage |
24 V |
|
Origin |
China |
|
Motor rating |
1 to 5 kW/motor |
|
Torsion |
From 400 Nm to 4800 Nm/motor |
Welded frame of I-beams and channel steel
Multi-layer steel plate hollow cavity with distributed air pressure balance holes
Ball or sliding wear-resistant bearings
Fire-retardant coating covering the door leaf surface
Steel treated with anti-corrosion coating
Integrated design of airflow guide plate (Brattice/Overcast)
Applications
Personnel access and airlocks
Used for personnel access in mine roadways to maintain ventilation integrity.
Open-pit mines and shaft entrances
Used for mine entrance protection to prevent unauthorized personnel from entering and to prevent external environmental influences.
Ventilation separation and air guidance
Used for airflow direction control in roadways, such as partitions, air curtains, and air duct separation facilities.
Structural Strength: Tensile and bending tests verify the load-bearing capacity of the door frame and door leaf.
Sealing Pressure: Air tightness tester tests the door's sealing and air pressure control.
Material Properties: Metallographic analysis, corrosion resistance tests, and fire resistance tests verify material properties.
Opening and Closing Mechanism: Torque meter, timer, and positioning instrument test actuation time and positioning accuracy.
Durability and Adaptability: Cyclic opening and closing tester tests performance under high humidity, high dust, and high temperature environments.
Certificate
FAQ
As one of the leading mine doors manufacturers and suppliers in China, we also support customized service. Please feel free to buy mine doors in stock here and get free sample from our factory. Quality products and low price are available.
Modular Mine Doors, Electric Mine Ventilation Door, Pressureless Mine Ventilation Door