Product
Filter Cages / SS304 Venturi Cage
Filter Cages
Filter cage, bag cage, cataphoresis-coated cage, silicone-coated cage, SS304 venturi cage, and membrane-compatible cages.
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PRODUCT GROUP
Industrial Filter Bags
Polyester, PP, acrylic, PPS, aramid, P84, PTFE, fiberglass, antistatic, and ePTFE membrane filter bag options. Hantech Filter helps you select the right product combination for your facility's flow rate, temperature, dust type, and operating conditions.
Polyester, PP, acrylic, PPS, Aramid, P84, PTFE, and fiberglass media
Antistatic, ePTFE membrane, oleophobic/hydrophobic, PTFE impregnation, and flame-retardant finish
Pulse-jet, reverse-air, shaker, horizontal/vertical bag connections
Technical selection using a temperature, chemical resistance, hydrolysis, and oxidation table
Bag family suited to cement, lime, mining, power, food, chemical, and metal processes
Filter bag selection
Filter bag media, finish, and application conditions are selected together
A filter bag is not simply a matter of size. Temperature, moisture, acidic/alkaline gas, hydrolysis, oxidation, explosive dust, particle fineness, filtration velocity, and pulse-cleaning behavior are all evaluated together.
Media selected from polyester to PTFE according to process conditions
For correct filter bag life in cement, lime, gypsum, mining, food, chemical, and power lines, temperature and chemical environment are assessed together.
Filter bag, cage, venturi, and pulse-jet compatibility
Cage diameter, wire count, venturi, pulse pressure, and differential pressure are inseparable parts of bag performance.
Dimension & connection
Snap-band, clamped, flanged, raw edge, ring, corded, or custom top connection.
Cleaning type
Seam and media selection based on pulse-jet, reverse-air, shaker, and horizontal/vertical mounting type.
Emission target
The choice between standard felt, microfiber, or ePTFE membrane is made based on the target outlet dust level.
Service Life
Wear, moisture, temperature fluctuation, and chemical load determine bag life.
Filter bag product types and temperature limits
When selecting filter bag media, continuous operating temperature, short-term peak temperature, and chemical resistance are evaluated together. The values below are a general selection reference based on Hantech's technical media classification and should be verified against the actual process temperature, moisture, oxygen, and gas composition.
| Felt/scrim and fiber type | Continuous temperature | Peak Temperature | Hantech media code | Hydrolysis resistance | Acid resistance | Alkali resistance | Oxidation resistance |
|---|---|---|---|---|---|---|---|
| Polypropylene | 95 °C | 95 °C | PP | excellent | excellent | excellent | restricted |
| Polyamide | 110 °C | 115 °C | IN PA. | restricted | restricted | Good. | restricted |
| Polyacrylonitrile copolymer | 115 °C | 120 °C | a.c. | Good. | restricted | restricted | Good. |
| Heat-resistant olefin | 125 °C | 135 °C | RO | excellent | excellent | excellent | restricted |
| Polyacrylonitrile homopolymer | 125 °C | 140 °C | DT | Good. | Good. | restricted | Good. |
| Polyester | 140 °C | 150 °C | PE | restricted | restricted | restricted | Good. |
| Polyphenylene sulfide | 190 °C | 200 °C | PPS | excellent | excellent | excellent | restricted |
| m-Aramid | 200 °C | 220 °C | NO, NX | restricted | restricted | restricted | restricted |
| Polyimide | 240 °C | 260 °C | PI | Good. | restricted | restricted | Good. |
| PTFE | 250 °C | 280 °C | PTFE, TFL | excellent | excellent | excellent | excellent |
| Fiberglass fabric | 260 °C | 288 °C | HL | Good. | restricted | restricted | excellent |
* Peak values are for short-term excursions only and should not be used as the continuous design temperature. Bag selection should account for process temperature, dew point, moisture, acid/alkaline gas, and oxidation risk together.
Finishes and surface treatments
ePTFE membrane
Very low emission, fine dust, easy cake release
Cement, metal, chemical, waste and sensitive emission
Antistatic / conductive fiber
Electrostatic charge discharge
ATEX risk, food processing, wood, coal, explosive dust
Oleophobic / hydrophobic
Cake control for damp, oily, and sticky dust
Lime, cement, energy, wood, food processing
PTFE impregnation / chemical finish
Additional protection against acid, alkali, and chemical environments
Waste incineration, chemical, energy, clinker line
Flame-retardant / spark protection
Reducing spark and hot particle risk
Metallurgy, asphalt, hot process lines
Glaze / singeing / calendering
Smoothing the surface to improve dust release
Agglomerating, fine and sticky dust
Temperature and chemical resistance comparison
| Media | Heat | Acid/alkali | Hydrolysis | Oxidation | Optimal decision area |
|---|---|---|---|---|---|
| PE Polyester | General cement/silo dust | ||||
| PP | Low temperature + chemical/moisture exposure | ||||
| PPS | Acidic/moist hot flue gas | ||||
| Aramid | Hot mineral/asphalt | ||||
| P84 | High temperature + fine dust | ||||
| PTFE | Aggressive chemicals and critical emissions | ||||
| Fiberglass | Very hot kiln gases |
Site information required for the correct bag
- Gas temperature: continuous / peak value
- Dust type, particle size, abrasiveness, and moisture
- Acid, alkali, SOx/NOx, solvent, or oil vapor
- Filter area, air-to-cloth ratio, and current differential pressure
- Cage size, venturi, pulse pressure, and cleaning cycle
- Target emission value and the cause of the current bag failure
Product images
Correctly categorized site and equipment images for Filter Bags
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Technical selection
What we evaluate together during the quotation process
Flow rate, pressure drop, temperature, moisture, dust abrasiveness, emission target, maintenance access, and compatibility with existing equipment are all considered together.
Technical sizing
Correct sizing based on flow rate, pressure drop, filtration velocity, and A/C ratio.
Material & Media
Filter bag media, cage, and valve selection suited to process temperature, moisture, and dust characteristics.
Spare parts & service
Long-term spare parts supply, installation guidance, and field application support.
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