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Jining Dongda Group Mining Machinery Co,.Ltd
Jining Dongda Group Mining Machinery Co,.Ltd  

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Widely used Balanced pressure ventilation door) 

Price: 100.0~200.0 USD 
Payment Terms: T/T,WU 
Place of Origin: Shandong, China (Mainland) 
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Product Detail

Means of Transport: Ocean,Land,Air
Packing: wooden case
Application: Coal
Brand Name: Dongkuangan
Production Capacity: 1000 set one month
Delivery Date: 7 days after the received t...
Type: Others

mainly used for underground outlet inlet lane and the main outlet inlet air lane between each contact

No Pressure Ventilation Door Main Structure:

Non pressure air door is composed of a door frame,door leaf, connecting rod balancing mechanism and a weight  interlocking mechanical etc.

No Pressure Ventilation Door Main Feature :

1. The ventilation door opening force is small, and the size of the opening force of the wind pressure  has nothing to do with wind 

2. Two-way isolation, wind leakage air volume is small, no need to reverse damper   
3. Steel structure, simple structure, strong and durable  
4. Close the steady, safe and reliable    
5. Good fireproof performance, can effectively prevent the possibility of fire belt transport lane, prevent fire and other harmful gases into the roadway    
6. Pressure balance type damper is good sound operation, also can power operation, such as add a set of control system, can realize the air door automatically open  
7. Between two air door which can realize mutual atresia.

Packaging & Delivery

Packaging Detail:

plywood case/carton 

Delivery Detail:

5 days from receiving payment (according to your order quantity)


Contact person: Joanna 


Tel: +86-537-2902388  Fax: +86-537-2902388


Address : West of Zhixue Road,High-tech Zone,Jining City,Shandong Province,China

Jining Dongda Group Mining Machinery Co.,Ltd

 Ms. joanna

Tel: 86-537-2902388
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Company Info

Jining Dongda Group Mining Machinery Co,.Ltd [China (Mainland)]

Business Type:Manufacturer
City: Jining
Province/State: Shandong
Country/Region: China (Mainland)

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