Polyester
The most widely used medium for general industrial applications. High mechanical strength and abrasion resistance. Treatments: WOR, antistatic, PTFE membrane, spark suppression.
Gas cleaning and dust extraction
Baghouse and cartridge filters for dust and gas cleaning, support cages, Air Slide fabric, and complete dust extraction systems. Adaltech® technology delivers up to 99.9% cleaning efficiency in the harshest operating conditions.
t° up to +280 °C
8 filter media
Sewn to customer drawings
Adaltech® technology
01 — Baghouse filters
Asiafilter Inc. baghouse filters
Bag elements are the decisive factor in the efficiency of dust and gas cleaning systems. Adaltech® technology enables media with an optimized fiber structure, delivering maximum depth filtration at low system resistance.
We manufacture bags in any configuration — snap-ring, flange, cuff — to customer drawings, with reinforced seams and specialized treatments: antistatic, PTFE membrane, water-and-oil-repellent (WOR) finish, spark suppression.
Asiafilter Inc. products are engineered for corrosive media and extreme temperature loads, ensuring process stability, longer filter service life, and compliance with environmental regulations.
- Any attachment configuration — snap-ring, flange, cuff, from a sample or drawing
- Reinforced seams and sealed bottoms for pulse-jet cleaning
- Special treatments — antistatic, PTFE membrane, WOR, spark suppression
| Nonwoven filter bag | Peak temp. | Designation | Acid resistance | Alkali | Oxidation | pH range |
|---|---|---|---|---|---|---|
| Acrylic | 140 °C | PAN | good | good | good | 3–11 |
| Polyester | 150 °C | PE | limited | limited | good | 4–12 |
| PPS | 200 °C | PPS | excellent | excellent | moderate | 1–14 |
| Polyamide | 250 °C | Nomex | good | excellent | good | 3–14 |
| PSA | 300 °C | PSA | excellent | excellent | excellent | 3–14 |
| Polyimide | 300 °C | P84 | good | moderate | good | 3–13 |
| PTFE | 280 °C | PTFE | excellent | excellent | excellent | 1–14 |
| Fiberglass | 300 °C | BQ | good | good | good | 3–11 |
Resistance summary for nonwoven filter media. Media selection for your process is handled by Asiafilter Inc. process engineers.
Meta-aramid
The gold standard for asphalt plants. Withstands sustained temperature loads and abrasion.
Polyimide
High performance thanks to the trilobal fiber cross-section: submicron particle capture and increased filtration area.
Fiberglass
Maximum thermal stability. Completely non-combustible, high acid resistance (with PTFE treatment).
PTFE
The medium for the harshest operating conditions. Complete chemical inertness (pH 0–14), minimal dust adhesion.
PAN
Optimal for humid environments at medium temperatures. Excellent resistance to hydrolysis and oxidizers.
PPS
The best choice for high humidity and aggressive chemistry. Exceptional resistance to hydrolysis (steam exposure); does not support combustion.
PSA
A cost-effective alternative to expensive media under extreme heat. One of the most heat-resistant polymers: excellent mechanical strength and fine dust filtration.
02 — Support cages
Asiafilter Inc. support cages
A secure foundation for your filtration systems. The cage is the load-bearing core that determines the aerodynamics and service life of the bag element.
Asiafilter support cages are manufactured with Adaltech® technology, which guarantees precision geometry and perfectly smooth welded joints.
Why does it matter? The absence of micro-burrs and sharp edges minimizes abrasive wear on the fabric during pulse-jet cleaning, preventing premature bag failure.
- Precise geometry — welding on automated jigs
- Anti-corrosion coatings — galvanizing, painting, stainless steel
- Any cell configuration — from standard to complex drawings
We build cages for any cell configuration: from standard to complex drawings
Venturi, flange, star adapter, reinforced Star Body flange, inside installation (Groove), oval cross-section — every type of top and bottom fixing for your filter.
03 — Air Slide fabric
Air Slide fabric: uniform feed without downtime
High-performance fabric panels for pneumatic conveying of powdered products with guaranteed stable throughput.
Thanks to Adaltech® technology, the fabric structure provides perfectly uniform fluidization across the entire area. This eliminates dead zones of material in the troughs and prevents compressor overload.
We supply wear-resistant fabric panels adapted to your process temperatures:
- Polyester (Standard) — the optimal choice for most powders at normal temperatures
- Heat-resistant aramid (High Temp) — operation in extreme conditions at temperatures up to 250 °C
Asiafilter Inc. air slide fabric is used in the cement industry, aluminum and alumina production, chemicals and pharmaceuticals, and food processing plants (flour, sugar, starch).
04 — Dust extraction systems
Industrial dust extraction systems
Design and delivery of turnkey solutions for removing dust, smoke, and gases at plants across Central Asia.
Your advantages
- Custom engineering — no off-the-shelf packages: every system is designed around your dimensions and material specifics
- Continuous regeneration — automatic pulse-jet cleaning lets the system run 24/7 without stopping production
- Full-scope service — from an audit of your current system to supplying all consumables: our bags and cages
Environment and complianceFull compliance with occupational safety standards and environmental regulations.
Workforce protectionReducing harmful substance concentrations in the work area to safe levels.
Energy savingsOptimized energy consumption through intelligent airflow control.
05 — Cartridge filters
Cartridge filters for dust removal
Compact efficiency for high dust concentrations. High-capacity cartridges with Adaltech® technology for maximum air cleaning in a minimal footprint.
- Large filtration area in a small volume — ideal for systems with limited installation space
- Up to 99.9% of fine dust — microporous media (including PTFE), even in welding, cutting, and spraying applications
- Quick cartridge replacement — no special tools required
- Easy pulse-jet cleaning — the special pleat configuration keeps dust from caking
| Filter medium | Applications | Temperature range |
|---|---|---|
| Cellulose (Standard) | Woodworking, metalworking, dry dust | up to 65 °C |
| Polyester (Antistatic) | Mining, chemicals (explosive dust) | up to 130 °C |
| PTFE membrane | Sticky, hygroscopic dust, laser cutting | up to 130 °C |
06 — Applications
Where Asiafilter gas cleaning solutions work
01→
Cement and construction industryDedusting of kilns, mills, silos, and packing stations. PTFE-membrane bags and fiberglass for high temperatures.
02→
Mining and metallurgical sectorDust extraction at ore crushing, transfer, and sorting points. Wear-resistant media at dust concentrations up to 1500 g/m³.
03→
Power industryFlue gas cleaning for coal-fired CHP boilers. PPS and fiberglass for humid, sulfurous environments.
04→
Food industry and agribusinessCapturing flour and sugar dust at elevators and batching plants. Food-grade media.
05→
Oil, gas, and petrochemical industryFlue gas filtration for process units. Antistatic versions for explosive dust.
06→
Machine building and metalworkingDust extraction for welding, cutting, and shot blasting areas. PTFE-membrane cartridges.
07→
Woodworking and light industryShavings and sanding dust: antistatic bags and spark-suppressing cartridges.
08→
Asphalt plantsDrying drums at 200 °C and above. The gold standard is Nomex meta-aramid.
07 — FAQ
Frequently asked questions about gas cleaning and dust extraction
Answered by Asiafilter Inc. process engineers. If your question is not here, send us a description of your process and we will review it individually.
How do I select the right filter medium for my process?
Four parameters define the medium: operating and peak gas temperature, chemical composition of the gas (acids, alkalis, oxidizers), humidity and dust abrasiveness. We work with eight non-woven media — from PAN polyacrylonitrile for humid environments at moderate temperatures to PSA polysulfonamide and fiberglass for extreme heat.
Send us the markings of your current elements, a drawing or a process description — our process engineers will select the medium and prepare an Adaltech® specification.
What temperatures do Asiafilter baghouse filters withstand?
Peak temperature depends on the medium: PAN acrylic — 140 °C, PE polyester — 150 °C, PPS polyphenylene sulfide — 200 °C, Nomex meta-aramid — 250 °C, PTFE — 280 °C, P84 polyimide, PSA polysulfonamide and fiberglass — up to 300 °C.
Continuous operating temperature is always below the peak: for Nomex it is 200 °C against a 220 °C peak, for fiberglass 260 °C against 280 °C. For asphalt plant drying drums running at 200 °C and above, the industry standard is Nomex meta-aramid.
Can you make filter bags to a sample or drawing?
Yes, this is our standard way of working. We sew filter bags with any attachment type — snap-ring, flange, cuff — to the customer's sample or drawing, with reinforced seams and sealed bottoms designed for pulse-jet cleaning.
Optional treatments are available: antistatic impregnation, PTFE membrane, water- and oil-repellent WOR finish and spark arrest.
Will your bags and cages fit another manufacturer's filter?
Yes. Bags are made for your existing cells to a sample or drawing, and support cages are made for any cell, from standard to complex configurations.
We support all common top and bottom fixings: Venturi, flange, star adapter, Heavy Flange (Star Body), internal mounting (Groove) and oval connection.
What does Adaltech® technology give in dust and gas cleaning systems?
Adaltech® is an optimized fiber structure of the filter medium: it delivers maximum depth filtration at low system resistance. In practice this means cleaning efficiency of up to 99.9% and lower draft energy costs, because the fan does not have to overcome excess pressure drop.
We need antistatic design and spark arrest — do you offer that?
Yes. For explosive dust — in woodworking, chemicals and mining and metallurgical plants — we supply antistatic bags and cartridges with spark arrest.
Cartridge filters for such duties use antistatic polyester rated up to 130 °C; for sticky and hygroscopic dust and for laser cutting we supply PTFE-membrane cartridges.
Why do filter bags tear prematurely, and what does the support cage have to do with it?
The cage carries the bag, and its geometry directly determines fabric life. Micro-burrs and sharp edges on welds abrade the material with every pulse-jet cleaning cycle, which leads to premature tears.
Asiafilter cages are welded on automated jigs: precise geometry and smooth seams. Anti-corrosion options are galvanizing, painting or stainless steel.
Do you design the whole dust extraction system or only supply consumables?
Both. We design and deliver complete dust, fume and gas extraction systems: each one is engineered for the specific dimensions of your shop floor and the nature of the material — we do not offer off-the-shelf solutions.
The service covers an audit of your existing system and subsequent supply of all consumables — bags and cages. Automatic pulse-jet cleaning lets the system run around the clock without stopping production.
We'll match filters to your process
Send us the markings of your current elements, a drawing, or a process description — Asiafilter Inc. process engineers will prepare an Adaltech® specification and a cost estimate.