Dust collector filter bags and cages

We provide the best filter media, bag design, installation services and other related products to optimize the performance of your air pollution control equipment.

Contact us today for more information at info.aft@flsmidth.com

filter bags
  • Filter bags
  • Pulse-jet
  • Reverse Air & Shaker
  • Filter media
  • Membranes
  • Pleated filters
  • Filter cages

Dust collector filter bags

FLSmidth AFT can fabricate filter bags from most filtration media for all types of dust collectors including pulse-jet, reverse-air and shaker baghouses.

FLSmidth AFT’s manufacturing process ensures strict quality control measures at every stage, from order placement to delivery. It spans high-standard raw materials, modern manufacturing equipment, skilled craftsmanship and full control over every step of the production line.

Engineers review every individual customer order to ensure proper bag-to-cage fit, taking into consideration the specific process requirements and features of the filter media and equipment. A proper fit is paramount in obtaining the longest possible service life.

 

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Filter bag types

AFT pulse-jet filter bags

AFTTM pulse-jet filter bags 

  • Felts (PPS, P-84®, aramid, polyester, acrylic, and many more)
  • Fiberglass

 

 AFT reverse-air filter bags

AFTTM reverse-air and shaker filter bags

  • Fiberglass
  • Woven polyester, aramid and acrylic

 

Filter media

 AFTTM pulse-jet filter bags are manufactured from felt or woven filter medias with the highest quality standards to ensure consistency and proper fit.

AFTTM pulse-jet filter bags can be manufactured from the following filter medias:

  • PTFE Membrane
  • Polyester
  • Fiberglass
  • Aramid
  • Huyglass®
  • PPS
  • Polypropylene
  • Basalt
  • P-84®
  • Cotton
  • Teflon® / PTFE
  • Wool
  • Acrylic
  • Nylon
  • Mixed Felts
  • Blends

 

The following finishes are available depending on the type of filter media:

  • PTFE
  • Tri-Component silicone/graphite/PTFE
  • Acid Resistant
  • Singed
  • Glazed
  • Silicone
  • Oleophobic
  • Hydrophobic
  • Many more

 

Constructions

AFT pulse-jet filter bags

 Top constructions:

  • Snapband
  • Flange
  • Ring
  • Raw edge

 

Bottom constructions:

  • Single or double disc
  • Disc with Wearstrip
  • Disc with Wearskirt

 

Industries served:

  • Cement
  • Lime
  • Waste incineration and utility power
  • Carbon black
  • Catalyst and chemicals
  • Industrial boilers
  • Foundries and non-ferrous smelters

Shaker filter bags

AFTTM reverse air and shaker filter bags are manufactured from woven fabrics with the highest quality standards to ensure consistency and proper fit.

Shaker filter bags can be manufactured from the following fabrics:

  • Woven or seamless polyester
  • Woven aramid
  • Acrylic

 

Top constructions:

  • Strap
  • Loop
  • Gromment
  • Hanger
  • Envelope
  • Multi-pocket

 

Bottom constructions:

  • Snapband
  • Cord
  • Sewn flat

 

Industries served:

  • Steel mills
  • Foundries
  • Aluminum smelters

 

Reverse air filter bags

AFT Reverse-air filter bags

Reverse air filter bags can be manufactured from the following fabrics:

  • Woven fiberglass with various finishes such as PTFE, acid resistant, tri-component silicone/graphite/PTFE and PTFE membrane
  • Woven or seamless polyester
  • Woven aramid

 

Construction of a reverse air bag includes a top compression band with cap, anti-collapse rings and the following bottom options:

  • Cord
  • Snapband
  • Compression band

 

Industries served:

  • Power utility and waste incineration
  • Industrial boiler
  • Steel mills
  • Cement
  • Lime
  • Carbon black

Unsurpassed filter media

FLSmidth supplies a wide range of filter media, parts and accessories to refurbish and improve your air pollution control equipment. Our parts and accessories are designed to meet or exceed the OEM specification to increase dependability and reduce costly downtime.

AFT™ filter bag media 

AFT™ filter bags are made from a wide range of filter media, including:

  • PTFE Membrane
  • Polyester
  • Fiberglass
  • Aramid
  • Huyglas
  • PPS
  • Polypropylene
  • Basalt
  • P-84
  • Cotton
  • Teflon® / PTFE
  • Wool
  • Acrylic
  • Nylon
  • Mixed Felts
  • Blends

 

 

Finishes

 

To meet demanding environmental and process requirements AFT developed finishes to enhance the performance of traditional filter media. Each finish is designed to achieve performance objectives such as enhanced release, chemical resistance and flex resistance. Our technical support team will recommend the finish best suited for your process.

AFT™ finishes

  • PTFE
  • Tri-Component silicone/graphite/PTFE
  • Acid Resistant 
  • Singed
  • Glazed
  • Silicone
  • Oleophobic
  • Hydrophobic
  • Many more

PTFE membrane

ePTFE membrane

A wide range of woven and felt filter media with ePTFE membrane is available. The membrane lamination serves as a primary filter surface allowing air to pass through while the fine particulate is collected. The membrane allows for excellent dust release and particle retention, keeping the filter bags as clean as possible for longer life.  

Benefits

  • Lower differential pressure 
  • Higher throughput
  • Much more efficient in capturing submicron dust particles
  • Less filter bag cleaning to reduce compressed air usage
  • Longer filter bag life

Pleated filters and cartridges

Pleated filters provide 2–3 times additional cloth area over standard bags in dust collectors where increased production demands have overwhelmed original capacity. FLSmidth AFT offers cartridges and pleated filters made of cellulose, synthetic blends, Aramid, PPS and spun bond polyester with special coatings, finishes or PTFE membrane. These can be constructed using galvanized or stainless components, designed to meet a variety of conditions and temperature requirements.

Features and benefits

Properly applied, pleated filters will:

  • Reduce pressure drop
  • Increase collection efficiency
  • Lower pulse air consumption
  • Provide 2-3 times additional cloth area

Filter cages

Proper bag-to-cage fit is paramount in obtaining the longest possible service life. FLSmidth AFT provides almost every cage style available and reviews every order to ensure optimum bag-to-cage fit. The latest advancement in cage design options incorporates “star rings” to reduce the amount of contact area between the bag and cage.

Cages are fabricated from:

  • Carbon Steel 
  • 304 Stainless Steel 
  • 316 Stainless Steel
  • Galvanized Carbon Steel

 

Connection styles: 

  • Twistlock 
  • Fingerlock 
  •  Slidelock
Filter cages