EN
GUANLIN grid anti-static polyester filter bags, 130°C temperature resistance, for woodworking, coal powder and chemical combustible dust collection.
Grid conductive anti-static polyester needle felt filter bags for explosion-proof baghouses handling wood flour, coal dust, grain dust and chemical powders, with continuous conductive yarn dissipating static charge across the full bag length.
Description
Static electricity is the hidden ignition source in any baghouse handling combustible dust. GUANLIN grid anti-static filter bags weave a continuous conductive yarn grid through the polyester needle felt, so charge generated by dust friction is carried away to the grounded cage and tubesheet instead of accumulating on the bag surface. The result is a filter bag that keeps its filtration performance while meeting the electrostatic requirements of combustible dust environments.
Why Choose GUANLIN Grid Anti-Static Filter Bags
- Continuous conductive grid — conductive yarn runs across the full width and length of the felt, not just in patches, giving uniform surface resistance.
- Explosion protection — dissipates static charge that would otherwise build up and discharge inside the baghouse.
- Grounded system design — works with grounded cages, tubesheet and baghouse bonding for a complete static path.
- Stable 130°C service — polyester needle felt base for continuous 130°C with 150°C short-term peak.
- ≥99.9% filtration efficiency — dense needle-punched structure captures fine particulate down to 1 μm.
- Excellent dust release — singed surface keeps the dust cake releasable and pressure drop low.
- Custom sizing — Ø120–160 mm standard, other diameters and 1000–6000 mm lengths on request.
- Matched cages — conductive cages supplied with the bags to preserve the grounding path.
Application Scenarios
Woodworking and furniture manufacturing
Sanding and sawing lines generate fine wood flour with a low minimum ignition energy. Grid anti-static bags remove the static charge generated as dust travels through the duct, while the smooth felt surface prevents resin-loaded dust from blinding the media.
Coal handling and pulverised coal preparation
Coal dust is both explosive and abrasive. The conductive grid with proper grounding eliminates static accumulation, and the 500 g/m² base media resists abrasion from high dust loading in transfer points, crushers and bunker vents.
Grain and flour milling
Grain dust explosions are a well-documented hazard. Anti-static construction plus a grounded cage provides the static path required by dust hazard assessments, and the washable felt supports hygiene programmes between campaigns.
Chemical powder and pigment processing
Fine organic powders and pigments accumulate charge readily during pneumatic conveying. Grid conductive media keeps surface resistance low so discharge cannot occur inside the filter housing.
Metal powder and shot blast extraction
Aluminium and other metal fines carry high ignition risk. Anti-static bags combined with bonded ducting and grounded cages reduce the risk of electrostatic ignition in the collector.
Cement, gypsum and mineral fillers
Where combustible additives are blended with mineral dust, the anti-static property covers the mixed dust stream while the robust polyester base handles the abrasive mineral fraction.
Applicable Working Conditions
- Continuous gas temperature ≤130°C (266°F), short-term peak ≤150°C (302°F)
- Combustible or explosible dust requiring static dissipation
- Pulse jet, shaking or reverse-air cleaning
- Relative humidity within normal industrial range
Product Specifications
| Item | Specification |
| Filter Media | Polyester needle felt with conductive grid |
| Surface Resistance | ≤10⁶ Ω |
| Basis Weight | 500 g/m² |
| Continuous Operating Temperature | 130°C (266°F) |
| Max Short-Term Temperature | 150°C (302°F) |
| Filtration Rating | 0.5–100 μm |
| Dust Removal Efficiency | ≥99.9% (particles ≥1 μm) |
| Diameter | Ø120–160 mm (custom available) |
| Length | 1000–6000 mm |
| Top Construction | Snap band / flange / buckle / sewn |
| MOQ | 10 pcs |
| Lead Time | 7–15 days |
Packaging & Logistics
- Inner: individual polybag with moisture barrier
- Outer: 5-ply export carton or woven bag, 50–100 pcs per carton
- EXW / FOB Shenzhen or Guangzhou / CIF
FAQ
Q1. How does the anti-static construction work?
A continuous conductive yarn grid is woven through the needle felt, carrying static charge to the grounded cage and tubesheet.
Q2. Does grounding matter?
Yes. The cage, tubesheet and baghouse must be bonded and grounded, otherwise the conductive grid has nowhere to discharge to.
Q3. What surface resistance do the bags have?
≤10⁶ Ω, suitable for combustible dust applications where static dissipation is required.
Q4. Can it be washed?
Yes, the felt is washable. Dry fully before refitting to avoid moisture blinding.
Q5. What is the maximum temperature?
Continuous 130°C (266°F), short-term peak 150°C (302°F).
Q6. Do you supply conductive cages?
Yes, matched cages are supplied to preserve the grounding path.
Q7. What is the MOQ and lead time?
MOQ 10 pcs, 7–15 days for standard sizes.
Key Specifications
- Media: polyester needle felt with conductive grid, 500 g/m²
- Surface resistance: ≤10⁶ Ω
- Temperature: 130°C continuous / 150°C peak
- Efficiency: ≥99.9% at ≥1 μm
- Sizes: Ø120–160 mm × 1000–6000 mm
- MOQ: 10 pcs, 7–15 days
