product detail

20210809153337_795

Material:

Acrylic needled felt dust bag chemically known as “polyacrylonitrile”. Acrylic raw material is processed by the needle felt punch system. Afterwards it goes through special waterproof treatment. By the use these procedure, Acrylic medium temperature hydrolysis resistance needled filter felt is manufactured.

Breathable: 14 m3 / m2, min quantity

Instantaneous working temperature : 160 ℃, 140℃, normal work.

Needled felt in acrylic machine weaving as the base cloth is strengthened vertically and horizontally.

Advantages:

Dust bag with excellent chemical resistance and resistance to hydrolysis

Specifications

1.	Description	Acrylic Needle Punched Filter Felt
2.	Images
3.	MOQ
4.	Sample
5.	Packing
6.	Specs And Features
	Material	Acrylic/ acrylic scrim			Thickness	1.9
	Weight(g/sqm)	500	Density(g/cm³)	1.17	Air Permeability (m³/m²/min)	10~14
	Warp Tensile Strength(N/5x20cm)	>1000	Weft Tensile Strenght(N/5x20cm)	>1300	Moisture Regain(20℃ And 65% r. humidity)	1.00%
	Warp Elongation(%)	<30	Weft Elongation(%)	<50	Support Combustion	Yes
	Continuous Dry Heat Operation(℃)	135	Continuous Moist Heat Operation(℃)	125	Max Short Dry Heat Surge(Short Term)(℃)	150
	Biological(Mildew, Bacteria)	very good	Alkalis	fair	Mineral Acids	very good
	Organic Acids	excellent	Oxidising Agents	good	Organic Solvents	very good
7.	Finishing	Singeing-calendering-heat setting
8.	Product Applications	Chemical/ Steel/Waste Incineration/Thermoelectricity /Construction Material
9.	Usage	Air Filter
10.	Type	Filter Felt
11.	Specialized in supplying
11.	1. Needle puched felt 2. Woven filtration fabric 3. Filter bags 4. Filter cages 5. Filter tubing automatic production line

Application

Widely used in waste incineration, asphalt, drier and coal mill spray dance, such as power plant flue gas dust collecting systems

FAQ

Q
What is the weight range for this acrylic filter media? How should I select it?
A
Our acrylic needle-punched felt filter media is available in multiple specifications ranging from 350 to 600 GSM. Generally, higher weights indicate thicker media with correspondingly greater mechanical strength, abrasion resistance, and filtration precision. Our technical team can recommend the most cost-effective weight based on your specific operating conditions.
Q
What are the primary advantages and operating temperature range of acrylic filter media?
A
Acrylic filter media is renowned for its excellent hydrolysis resistance and tolerance to moderate acids and alkalis, making it particularly suitable for treating humid, hot flue gases. It can withstand continuous operation at temperatures up to 140°C (286°F) and momentary exposure to 160°C (316°F), making it an ideal choice for medium-temperature applications such as coal-fired boilers and dryers.
Q
What advantages does acrylic filter media offer over polyester media?
A
Compared to polyester, acrylic media exhibits superior hydrolysis resistance and chemical durability. Its service life significantly outlasts polyester media, especially when treating wet, hot flue gas containing sulfur oxides (SOx).
Q
In which industries is this filter media typically used?
A
It is widely used in coal-fired boilers, waste incineration, dryers, cement raw milling, carbon black production, and other applications where temperatures are around 140°C and chemical corrosion may occur.
Q
What post-treatments are available for the filter media?
A
We offer singeing and calendering to enhance surface smoothness and dust-cleaning performance, as well as water and oil repellent treatments for humid or oil mist-containing conditions.