Automatic Shutter Ventilation Axial Fan/Exhaust Fan(16" 20" 24" 32" 36" 42" 50")

 Advantages:

Strong air flow              

High reliability

Low power consumption        

Long durability

Low maintenance                

Easy to install

Suitable for different application

Low noise

Safe in use 

Qingzhou Hairun Environmet Control Devices Co., Ltd. is located in Qingzhou city, Shandong province with advantageous location and convenient transport. For many years it has committed itself to national energy-saving and environmental protection. Owing to having excellent staff, strong ability of production exploitation and development ability, comprehensive professional knowledge and customized design, we will fully meet with relevant customer’s demand.

       Corporate Concept: Top Credit, Constant Innovation; Customer Uppermost. Quality First, Corporate Tenet; Credit-based, Commitment stressed, Contract-abiding, Top Quality, Perfect Service

1. Frame using advanced automatic processing, high precision. Extra-thick zinc coating frame, corrosion resistance strong.

2. High strength aluminum alloy casting wheel, the reasonable perspective of the type , to reach the maximum air flow .High-precision micro–computer–aided manufacturing 

system can make the best of its fans.

3.It used Al-alloy rim ,so it has light weight ,high intension and good toughness.

4.Bearing of impeller, permanently sealed bearing, size 633313,the bearing is of high intension and durable using term without any noise.

5.High precision system is assistant by computers, which maximizes the effectiveness

of the fan. Ten strict procedures that consist of airflow test, noise test, libration test, 

drive concentric test, blade RPM test,electric current test and whole machine 

efficiency test, dynamic balance test, the thickness of the galvanized sheet test,      

the size of the spare parts test,They assure the quality of the fan.

6.Guarantee period is one year, during which easily damaged parts are offered free of charge.

7.Safety net with easy disassembly is convenient for maintaining.

8.Motor be specially used for high performance fan,with updated design for automatic 

 regulating device, the belt doesn’t need manual adjustment.

Good quality, better price, best service

Services:

1.About sample:

offer the samples to customers only need to be paied the cost price and the fee for this product.

2.About the customized service:

can make the customized service according to the requirement of customers. For big order,we can pay the cost of customized service in our balance.For small order,we can do it on the base of paying the cost of custmized service by customers.

3.About after sales service:

for customers who install the equipments in China,we can offer one year after-sales service by free,only need customers to pay the cost of products which be changed.for customers who need them overseas,we can offer guide service for one year by free.