GUANLIN flame retardant polyester filter cartridge, self-extinguishing pleated element for welding and metal dust.
Self-extinguishing polyester cartridges for collectors handling sparks and hot particles, where a standard element would be a fire risk.
Description
Sparks entering a dust collector find a filter full of dry, finely divided fuel. Standard polyester will happily sustain a flame once lit, which is how a routine grinding operation turns into a collector fire. Flame retardant media are formulated to self-extinguish, so a spark that lodges in the pleats chars locally instead of propagating through the element.
Why Choose GUANLIN Flame Retardant Cartridges
- Self-extinguishing media — will not sustain a flame.
- Spark tolerance — suited to welding and grinding streams.
- High pleat area — low resistance with long service life.
- Stable performance — retardant treatment does not wash out.
- Standard mounting — direct replacement fit.
- Reduced fire risk — protection without changing the collector.

Application Scenarios
Welding fume extraction
Spark-laden fume from MIG and TIG welding.
Grinding and cutting
Hot particles from abrasive processes.
Laser cutting fume
Fine oxide dust with spark carryover.
Plasma cutting tables
Hot particulate capture.
Foundry finishing
Spark-generating surface preparation.
Battery and metal powder
Reactive dust with ignition potential.

Our Factory

GUANLIN has manufactured filtration products in Dongguan since 2003, operating a 6,000 m² plant with automated filter bag sewing lines, automated singeing equipment, cage welding systems and pleated filter production lines. Products are exported to Singapore, Vietnam, Malaysia and other markets, with ISO 9001 and ISO 14001 certified quality management.
Product Specifications
| Item | Specification |
| Media | Flame retardant polyester |
| Property | Self-extinguishing |
| Max Temperature | 130°C continuous |
| Construction | Pleated with metal end caps |
| MOQ | 50 pcs |

FAQ
Q1. Does flame retardant mean fireproof?
No — it self-extinguishes but is not a fire barrier; use a spark arrestor upstream.
Q2. Is efficiency affected?
No, retardant treatment does not reduce capture efficiency.
Q3. Does the treatment wash out?
No, it is built into the media.
Q4. MOQ and lead time?
50 pcs, 10–20 days.
Key Specifications
- Media: flame retardant polyester
- Property: self-extinguishing
- Application: welding, grinding, sparks
- MOQ: 50 pcs





