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Needle Punched Felt Air Dust Filter Cloth

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Needle punched felt , customized, carefully selected , Nonwoven Filter Fabric also called filter cloth , filter fabric , filter media , filter material ,needle felt . These are both the material of filter bags . Needle punched felt is made by needle punching machine , so it names needle punched felt . 

Meet your needs to control dust emissions and extend service life

Aokai Envirotec low emission, low energy consumption, flue gas dedusting system expert. The whole set of Needle punched felt (polyester, acrylic, PPS, Teijin aramid, DuPont aramid, China aramid, P84, PTEE, glass fiber) are customized and carefully selected according to your dust collector type, dust concentration, dust composition and dust characteristic, so as to meet your needs to control dust emissions and extend service life. 

 

Needle punched felt types

Fibre types

Weight (g/㎡)

Continuous temperature

Peak Temperature

Polyester(PET)

450-600

130℃

150℃

Acrylic(PAC)

500-600

125℃

150℃

PPS

500-650

160℃

190℃

Aramid

400-600

204℃

240℃

PTFE

750-800

240℃

260℃

P84/PTFE

500-550

240℃

260℃

Fiberglass

900-950

240℃

260℃

 

Careful production, perfect quality, stable performance

The weight deviation of all our products is ±2% that improvement the use of products in process of uneven air permeability and reduce the service life. Needle punched felt production uses double lapping and carding approach that finishes the final product in one single pass. All fiber will enter the feeding equipment, going through processes of scattering, mixing, carding, lapping and re-scattering. Punching will make the layers of fiber and scrim to inter-penetrate, forming semi-finished filter felt. High temperature treatment will then stabilize the shape and size of the felt.

Needle punched felt surface treatment technology

Solve the troubles of Needle punched felt selection caused by different dust characteristic in working conditions

In Aokai Envirotec, the felt may be further processed by pressing, coating, dipping, membrane-laying, or waterproof treatment according to particular requirements of customers.

 

Surface treatments and protective finishes have the following advantages:

1.Optimal surface filtration;

2.Lower energy costs by efficient cleaning of the Dust Filter Media  ;

3.Improved protection against mechanical and chemical influences;

4.Greater efficiency due to longer operational life;

 

The typical dust properties are of decisive importance for recommending the appropriate surface of the Needle punched felt .

Typical Dust Properties with the Appropriate Surface Finishes

Singe

Calendar

Silicone

Hydrophobic Oleo phobic

Chemical Protection

Dispersion

Microfiber

Free Flowing







Agglomerating







Corrosive






Humid






Sticky




Acid / Alkaline







Ultra fines








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