Home ProductsDFX™ Series – Dust Filtration ExcellenceDFX-FMS™ Fibreglass Blend Dust Filter Bags
DFX™ Series – Dust Filtration Excellence

DFX-FMS™ Fibreglass Blend Dust Filter Bags

DFX-FMS™ Fibreglass Blend Dust Filter Bags are manufactured from FMS composite needlefelt, combining fibreglass fibres with synthetic reinforcement to provide enhanced flex durability and reliable high-temperature performance. This blended construction offers a cost-efficient alternative to pure fibreglass media while maintaining stable filtration efficiency in demanding dust environments.

Rated for operating temperatures up to 260 °C, DFX-FMS™ is suitable for cement production, boilers, metallurgical operations, and thermal process applications where vibration, pulse-jet cleaning, and frequent thermal cycling require a more flexible media than traditional woven or needled fibreglass. The fibreglass blend structure supports consistent airflow and dependable filtration under fluctuating process conditions.

Technical Specifications
  • Material: Fibreglass-reinforced needlefelt blended with PPS, PTFE, or aramid fibres
  • Operating Temperature: Continuous up to 200–220 °C; short-term excursions to 240–260 °C (depending on blend ratio and finish)
  • Weight: Typically 500–600 gsm (varies by fibre composition and coating)
  • Micron Ratings: Generally 5–50 μm; finer ratings achievable with PTFE membrane lamination
  • Surface Treatments: PTFE coating, graphite impregnation, or silicone finish for enhanced chemical resistance, flex life, and cake release
  • Construction: Sewn with high-temperature resistant thread; double or triple-stitched seams for durability under pulsed cleaning
  • Seam Style: Standard double needle or triple-reinforced for high-stress applications
  • Air Permeability: Approx. 8–12 m³/m²/min (pre-conditioning; varies with blend and finish)
  • Chemical Resistance: Excellent against acidic gases (SOx, NOx, HCl); improved tolerance to alkaline and oxidising dust compared with pure fibreglass
  • Hydrolysis Resistance: Moderate to good, depending on blend composition; superior to fibreglass-only media
  • Cage Compatibility: Designed for use with standard round or oval support cages
  • Compliance: Designed for high-temperature and chemically aggressive environments; food-contact compliant variants available (FDA 21 CFR; EU 1935/2004 & 10/2011)
  • Add-Ons: Anti-collapse rings, wear pads, top-load guides, spark-resistant cuffs
Applications
  • Steelworks & Foundries: Blast furnaces, basic oxygen furnaces, electric arc furnaces, and secondary steelmaking operations where heat, sparks, and corrosive gases demand reinforced stability
  • Cement & Lime Kilns: Main kiln, clinker cooler, and raw mill exhaust handling elevated temperatures and acid-laden dust streams
  • Waste & Hazardous Incineration: Municipal, industrial, and medical waste incinerators where mixed flue gases contain high levels of SOx, NOx, HCl, and dioxins
  • Non-Ferrous Smelting: Aluminium, copper, and nickel smelters requiring resistance to both thermal peaks and aggressive particulate
  • Power Generation & Boilers: Biomass, RDF, and coal-fired boilers where corrosive ash and sustained high temperatures exceed the performance of synthetic fibres
  • Chemical & Process Plants: High-temperature dryers, reactors, and calcination units producing acidic or alkaline vapours with abrasive dust