EN
Factory Custom Polyester Filter Bag 450g 500g 550g Various Size Industrial Pulse Dust Collector Filter Sleeve
Our polyester needle felt filter bags are produced with high purity PET staple fiber via advanced needling process, which is the most widely used cost-effective filter media for normal temperature dry dust removal. The uniform interlaced fiber structure delivers stable air permeability and low operating resistance, ensuring the dust collector maintains steady airflow during long-time continuous operation. With excellent tensile strength and abrasion resistance, it can withstand frequent pulse jet impact without fiber shedding, cracking or perforation. The standard singeing and calendering treatment optimizes dust release performance, making dust cake peel off completely during pulse cleaning to avoid accumulated dust clogging. Optional water-oil repellent and antistatic finishing expands its applicability to slightly humid and flammable powder working conditions. It achieves stable 99.8% interception efficiency for 0.3μm fine dust to control workshop floating dust. Compared with high-temperature filter media like PPS, FMS and PTFE, polyester filter bags greatly reduce spare parts procurement cost, effectively lowering overall workshop operation and maintenance expenses for general industrial dust removal projects.
Description
Polyester Filter Bag Product Standard Parameters
| Parameter Item | Technical Specification |
|---|---|
| Raw Material | 100% Pure Polyester (PET) Staple Fiber Needle Felt |
| Fabric Weight | 450g/㎡, 500g/㎡, 550g/㎡ (Customizable) |
| Filtration Precision | 0.3μm |
| Filtration Efficiency | 99.5% ~ 99.8% |
| Continuous Working Temperature | ≤130℃ |
| Instant Peak Temperature | 150℃ |
| Core Advantages | High air permeability, good wear resistance, low shrinkage, cost effective, easy pulse cleaning |
| Surface Optional Treatment | Singeing, calendering, water & oil repellent, antistatic finishing |
| Chemical Resistance | Resistant to weak acid, neutral dust; Not applicable to strong alkali, high temperature flue gas |
| Application Scenarios | Cement plant, woodworking factory, stone processing, grain processing, foundry, all dry normal temperature dust workshops |
| Sewing Craft | Double stitching, bag mouth reinforcement, anti-wear bottom optional |
| Customization Service | Custom diameter, length, bag type, surface finishing, fabric gram weight |
Polyester Filter Bag Core Product Selling Points
1. High Air Permeability & Stable Low Air Resistance
Uniform micropore fiber structure provides outstanding air permeability, low and stable differential pressure during operation. The dust collector will not suffer airflow attenuation after long-term running, ensuring uninterrupted production efficiency.
2. Good Wear & Tensile Resistance, Long Stable Service Life
EN：Integrated high-density needling enhances fiber binding force, with strong tensile and anti-scouring performance. It resists repeated pulse jet impact and hard mineral dust friction, free of fiber shedding and bag damage.
3. Excellent Dust Release Performance, Less Clogging
Standard singeing and calendering smooth the fabric surface, dust cake will fall off thoroughly during pulse cleaning without residual embedded dust, maintaining consistent filtration capacity all year round.
4. Optional Multi-functional Surface Finishing for Complex Working Conditions
Customizable water-oil repellent treatment for slightly humid dust; antistatic finishing for flammable powder workshops, solving bag blinding and static dust adhesion problems separately.
5. Stable Filtration Precision, Clean Normal-temperature Workshop Environment
Dense needling layer steadily intercepts 0.3μm fine dust particles with filtration efficiency up to 99.8%, effectively suppresses floating dust in normal-temperature workshops and improves on-site working environment.
6. Ultra-high Cost Performance, Widely Compatible with All Pulse Baghouses
Far lower unit cost than PPS, FMS and PTFE filter bags, perfectly matching all conventional pulse dust collectors for cement, wood, grain and stone industries, full-size customization supported.
Incomplete Dust Removal Q&A
Q1 Ordinary filter bags lead to floating fine dust in normal-temperature workshop, incomplete dust removal?
EN Question：Fine dust floats all over normal-temperature workshops, common filter bags cannot realize thorough dust interception? EN Solution：Low-grade polyester filter bags adopt loose needling process with oversized internal pores, allowing submicron dust to penetrate through fabric gaps. Our high-density polyester needle felt forms compact deep filtration layer to fully trap 0.3μm fine dust at 99.8% efficiency, eliminating workshop flying dust and incomplete dust removal fundamentally.
Q2 Slightly humid dust makes filter bags stick dust and block rapidly, airflow drops sharply?
EN Question：Slightly humid dust causes severe dust adhesion and fast clogging of filter bags, resulting in sudden airflow reduction? EN Solution：Untreated ordinary polyester fabric has strong dust adsorption capacity, damp dust easily embeds into fiber layers and hardens. Our optional water-oil repellent polyester filter bag forms a non-stick protective film on surface, preventing damp dust bonding and maintaining stable low-resistance operation continuously.
Q3 Frequent pulse cleaning still cannot remove dust thoroughly, high maintenance labor cost?
EN Question：Repeated pulse cleaning fails to clear residual dust completely, bringing high manual maintenance cost? EN Solution：Cheap filter bags without singeing & calendering own rough surface where dust embeds deeply and cannot be blown off. Our polyester filter bag with singeing and calendering has smooth surface for full dust cake separation in one pulse blow, cutting cleaning frequency and labor expenses.
Q4 Hard stone & cement mineral dust abrades filter bags thin, causing pinhole dust leakage?
EN Question：Hard stone and cement mineral dust continuously scours filter bags and creates pinholes leading to dust leakage? EN Solution：Thin low gram weight polyester felt has weak anti-abrasion performance against hard sharp dust. Our thickened 500g/550g high tensile polyester filter bag strengthens fiber interweaving structure to resist long-term mineral dust scouring, avoiding pinhole perforation and fine dust leakage.
Q5 General dust removal projects pursue low spare parts cost without high temperature requirement?
EN Question：Normal temperature dust removal projects need heat-resistant filter bags are not required, but high-temperature filter media raise procurement cost greatly? EN Solution：Our polyester filter bag meets all standard dry normal-temperature dust removal demands with far lower price than PPS and FMS. Its stable filtration performance and long service life cut down total replacement frequency and long-term workshop operating expenditure.
Q6 Mixed wood & grain dust leads static accumulation, dust adheres tightly on filter bags?
EN Question：Static accumulation from wood and grain mixed dust causes tight dust adhesion on filter bags and poor cleaning effect? EN Solution：We supply antistatic treated polyester filter bags with evenly distributed conductive fiber to eliminate static charge instantly, prevent static dust agglomeration and adhesion, keep long-term smooth pulse cleaning and stable dust removal efficiency.
