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Filter Bags
Polyester, PP, acrylic, PPS, aramid, P84, PTFE, fiberglass, antistatic, and ePTFE membrane filter bag options.
ExploreExtraction hoods, ductwork, filters, and air handling equipment systems at furnace, molding, sand blasting, casting, and grinding fume/dust points.

Extraction hoods, ductwork, filters, and air handling equipment systems at furnace, molding, sand blasting, casting, and grinding fume/dust points. Dust load, operating temperature, maintenance access, and emission targets at each process point determine product selection.
In foundries, melting fumes, sand preparation, molding, shake-out, sandblasting, and grinding points each carry different particle and temperature loads. Hoods, ductwork, cyclones, baghouse filters, air equipment, and wear protection are selected on a process-by-process basis.

The filter housing, fan, ductwork, filter element, pulse-jet system and discharge/conveying equipment are not independent of one another; they are evaluated as components of the same operating point.
| Process Dew Point | Filter / dust-fume solution | Fan, ductwork and conveying equipment | Critical selection grade |
|---|---|---|---|
| Melting furnace | Primary/secondary fume extraction and baghouse | ID/booster fan, hood, and damper | Fume peak, sparks, and hot metal oxide |
| Sand preparation/mixer | Local baghouse filter | Sand transfer fan, rotary valve, and elevator | Silica dust, wear, and moisture |
| Shake-out and mold breakdown | Cyclone + high-load filter | High-flow dedusting air-handling equipment | Sudden heavy dust loads and hot sand |
| Sandblasting | Cartridge/bag filter and wear plate | Sandblasting cabin fan and recovery elevator | Abrasive grit and fine metal dust |
| Grinding/finishing | Local cartridge/bag filter | High-vacuum air-handling equipment and spark prevention | Sparks and fine metal dust |
Carries melting fume to the central filter.
Provides high flow capacity under sudden high dust loads.
Extracts mixer/elevator transfer points.
Local high-vacuum extraction for metal dust.
Modular filter suited to high smoke/dust loads.
Protects the main filter from coarse hot particles.
Based on furnace gas and abrasion.
Weld fume capture and air balance.
Based on fume peak and system resistance.
Sand/dust discharge and recovery.
Exact capacity is not set by a catalog name; it is determined by process flow rate, system pressure, temperature, material/dust behavior and discharge continuity.
| technical data | Required site / process information | Impact on selection |
|---|---|---|
| Smoke peak | Furnace charging/pouring cycle | Determines the hood and fan equipment flow rate. |
| Silica/metal dust | Particle size distribution and abrasiveness | Determines media and protective plates. |
| Temperature/spark | Peak temperature and hot particles | Affects pre-separation and filter bag selection. |
| Ducting system | Hood opening, distance, and dampers | Determines capture efficiency. |
| Sand conveying | Elevator/conveyor capacity | Affects dust generation and discharge. |
These are not success percentages; they are risks that must be verified on site to select the right filter, fan and auxiliary equipment.
Quarry smoke escape
High loading in the shake-out filter
Sand abrasion
Spark risk during grinding
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Polyester, PP, acrylic, PPS, aramid, P84, PTFE, fiberglass, antistatic, and ePTFE membrane filter bag options.
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ExploreShare your facility's dust collection needs; let us recommend the right system and spare parts combination.