Complete Industrial Filter Media & Precision Cages

Engineered from virgin synthetic polymers for rigorous thermal, chemical, and abrasive flue gas conditions across global heavy industries.

Polyester (PET) Needle Felt Filter Bags

Code: DWS-PET-NF
Operating temperature: 130°C cont. / 150°C peak
Chemical resistance: Acid: Med | Alkali: Good
Suitable industries: Cement, Woodworking, Grain, General Mining
Description: Standard workhorse media for ambient to low-temperature industrial dust collectors. Singed and calendered smooth finish delivers superior cake release and high tensile durability.

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Polypropylene (PP) Needle Felt Filter Bags

Code: DWS-PP-NF
Operating temperature: 90°C cont. / 100°C peak
Chemical resistance: Acid: Superb | Alkali: Superb (pH 1-14)
Suitable industries: Chemical Plants, Water Treatment, Wet Galvanizing, Mining
Description: Exceptional chemical resistance across strong acids and alkalis in low temperature or wet environments with non-hygroscopic fibers.

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Homo-Polymer Acrylic (PMIA) Hydrolysis-Resistant Bags

Code: DWS-PMIA-NF
Operating temperature: 125°C cont. / 140°C peak
Chemical resistance: Acid: Good | Alkali: Med
Suitable industries: Waste Incineration Low-Temp, Drying Kiln, Plastics, Mining
Description: Superior resistance to moisture hydrolysis where polyester would fail due to water vapor, combined with good chemical resistance against acidic gas condensation.

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PPS / Ryton High-Temp Acid-Resistant Filter Bags

Code: DWS-PPS-NF
Operating temperature: 190°C cont. / 210°C peak
Chemical resistance: Acid: Superior | Alkali: Superior
Suitable industries: Coal Power, Cement Kiln, Biomass Boiler, Waste Incineration
Description: Premier choice for coal-fired boilers and cement kilns operating in continuous SOx flue gas. Exceptional resistance to sulfur acids and chemical hydrolysis up to 190°C.

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Aramid (Nomex) High-Wear & Abrasion Filter Bags

Code: DWS-NOMEX-NF
Operating temperature: 200°C cont. / 240°C peak
Chemical resistance: Acid: Good | Alkali: Good
Suitable industries: Asphalt Plants, EAF Steel, Metallurgy, Cement Raw Mill
Description: Supreme mechanical tensile strength and abrasive dust resistance. Essential for asphalt batch mixing plants and metallurgical electric arc furnaces with high thermal swings.

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100% PTFE Extreme Duty Membrane Filter Bags

Code: DWS-PTFE-MEM
Operating temperature: 260°C cont. / 280°C peak
Chemical resistance: Acid: Universal | Alkali: Universal (pH 0-14)
Suitable industries: Hazardous Waste, Chemical Plants, Non-ferrous Metals, Titanium
Description: Universal chemical resistance across pH 0–14 with 260°C continuous thermal tolerance. Complete immunity to acids, alkalis, oxygen oxidation, and hydrofluoric acid (HF).

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Fluomex (FMS) Fiberglass Composite Membrane Filter Bags

Code: DWS-FMS-MEM
Operating temperature: 240°C cont. / 260°C peak
Chemical resistance: Acid: Superior | Alkali: Med
Suitable industries: Cement Clinker, Blast Furnace Gas, Chemical Lime, Foundry
Description: Reinforced woven fiberglass base scrim blended with high-temp polymer surface fibers and PTFE membrane. Zero elongation stretching under heavy negative pressure suction.

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P84 / Polyimide Trilobal Micro-Fiber Bags

Code: DWS-P84-NF
Operating temperature: 240°C cont. / 260°C peak
Chemical resistance: Acid: Superior | Alkali: Med
Suitable industries: Waste Incineration, Cement Kiln, Coal-Fired Boilers, Glass Kiln
Description: Unique trilobal fiber profile yields 80% higher specific surface area, delivering unmatched sub-micron dust capture efficiency without heavy membrane coatings.

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Fiberglass Needle Felt High-Temp Bags

Code: DWS-FG-NF
Operating temperature: 260°C cont. / 280°C peak
Chemical resistance: Acid: Superior | Alkali: Fair
Suitable industries: Steel Smelting, Ferroalloy, Carbon Black, Cement Kiln
Description: 100% woven fiberglass base with high thermal tolerance, low elongation, and exceptional resistance to hot acid gases.

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Precision Industrial Filter Cages (12/16/20 Wires)

Code: DWS-CAGE-16
Operating temperature: Ambient up to 300°C
Chemical resistance: Galvanized / SUS304 / SUS316 / Epoxy Coated
Suitable industries: All Baghouse Applications, Power, Cement, Steel, Chemical
Description: Automated multi-point spot-welded cages with zero burrs. Available in cylindrical, oval, diamond, and multi-section snap-lock designs for bags up to 10 meters long.

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Official Literature

Line-Card (PDF, 214 KB) · Corporate Brochure (PDF, 10.4 MB)