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1.PI polyimide needle punching, 2.High temperature 260 celsius, 3.ISO:9001 quality control, 4.Customer size available - details see: https://www.machineto.com/pi-polyimide-needle-felt-dust-bag-10217151

PI polyimide needle felt dust bag

Fiber type		polyimide fibre
Thickness (mm)		2.3-2.4
Weight (g/m2)		500-550
Breaking strength ( N/cm2 )		>300
Air permeability (m3/m2.min)		16-20
Density ( g/cm3 )		0.28
Tensile strength (N/5*20cm)	warp	>800
	weft	>1000
Tensile elongation	warp	<30%
	weft	<30%
Working temperature (DEG)	continuous	260
	peak	280
Finishing treatment		PTFE dipping, PTFE coating

Production process:

P84 high temperature resistant needle filter felt is high efficiency filtering media made of the polyimide material imported from INSPEC of Austria, subsequently passing the processes of opening, cross lapping, carding, needle prodding, and finishing treatment crafts… This fabric has the unique leaf cross section structure .

The advantages :

1. Operating temp. continuous : 260 DEG C ; instant : 280 DEG C

2. Good feature of anti-acid, while normal anti-alkali feature

3. Obviously better anti-hydrolysis feature than Nomex fiber

The usage of P84:

Depending on the excellent features like high temperature resistant, anti-corrosion, anti-hydrolysis, P84 is widely used in the working conditions of metallurgical process, chemical industry, cement and so on, with more than 3 years PLC , can be considered as an outstanding filtering material.