Dongda's first choice for high-quality pressureless dampers is Jining pressureless damper 18053750768

The first choice for high-quality pressureless dampers is Jining Dongda electromechanical automatic pressureless dampers
Type pressureless dampers use
Type pressureless dampers (pressure balanced dampers) are mainly used in coal mine entrance and return air tunnels and It is mainly used in each contact lane between the air inlet and return air lanes. It is an updated product of the currently used dampers.
There are fully transparent and ordinary types.
Type pressureless air door mechanical interlocking device
Install a / type air door mechanical interlocking device between two air doors. When one air door is opened, the other air door cannot be opened, thereby realizing the interlocking of the two air doors.
Performance characteristics of pressureless damper
. The opening force is small, and the opening force has nothing to do with the wind pressure in the tunnel
. The damper can automatically close after a person or vehicle passes by
. Bidirectional sealing, Small air leakage
. Locking can be realized between the two dampers
. The damper opens and closes smoothly without impact, safe and reliable
. When the mine car passes, the impact-rod pressureless damper can pass The side of the mine car collides with the damper striker to open the damper, eliminating the need to open the door manually
. When the minecart loses control, the damper can be opened by the side of the minecart with the impact of the damper striker. Opening it will not cause damage to the damper
. It has a simple structure and is easy to maintain.
Physical picture of pressureless damper
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The company now has ten series and more than forty varieties The product. The main products include belt feeders, reciprocating feeders, wet concrete sprayers, roller tank ears, broken belt catchers for belt conveyors, air pressure self-rescue devices, pneumatic car arresters, pneumatic horizontal brakes, pneumatic Vehicle blocking beam, inclined lane anti-car racing device (one slope and three gears), belt conveyor belt automatic deviation correction device, vertical shaft skip quantitative bucket loading equipment, pressureless damper, composite wear-resistant steel plate, pin tooth operation complete set of equipment, communications Sound and light annunciators, verbal sound and light alarms, belt conveyor comprehensive protection devices, mine damper automatic control devices, mine switch control devices, mine automatic sprinkler dust suppression devices, mining sports car protection devices, etc. Among them, there are many products that have obtained national patents, and they have obtained patent funds from the Municipal Science and Technology Commission and the District Committee, and three scientific research projects have produced huge benefits.
The company is willing to pursue zero-defect product quality with high-quality and advanced products, perfect after-sales service, and the business philosophy that customers are always God. We sincerely invite new and old customers to visit us for guidance, negotiate cooperation, and create a win-win situation.