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| As the industry standard for cost-effective dust removal, these 100% virgin polyester filter bags operate reliably from -40°C to 135°C. They achieve >99% particle retention for 4-40μm particles, feature excellent mechanical strength, and are recyclable, making them ideal for woodworking, metal fabrication and food processing facilities. | |||||||||
Constructed from 100% virgin polyester fibers through nonwoven needling process, high-efficiency polyester dust filter bags interlace staple fibers into a web and consolidate them onto polyester base fabric, forming a three-dimensional mesh structure. Also known as polyester felt filter bags and industrial polyester dust collection bags, these products balance filtration performance, mechanical strength and cost, making them widely used in general industrial applications. They operate within a temperature range of -40°C to 135°C (-40°F to 275°F) with short-term surge tolerance up to 149°C (300°F), and perform well in dry to moderately humid environments with minimal chemical exposure.
The multi-layered melt-blown construction enables effective particle capture while maintaining low airflow resistance. The three-dimensional mesh structure creates a tortuous path for dust particles, increasing the probability of interception and impaction. Different surface treatments can be applied to optimize dust cake release based on specific particle characteristics.
Parameter | Value |
Particle Retention Efficiency | >99% for 4–40μm particles (meets N10 and M13 standards) |
Dirt-Holding Capacity | 0.55 lbs (250g) per bag |
Tensile Strength (Warp Direction) | 1800N/5cm |
Maximum Continuous Temperature | 135°C (275°F) |
Short-Term Surge Temperature | 149°C (300°F) |
Moisture Resistance | Hydrophilic base material; optional water-repellent coating for 60–80% relative humidity |
Initial Differential Pressure | <0.5 bar at 1.5 m/min airflow velocity |
Custom Diameter Range | 110mm–300mm |
Custom Length Range | 1000mm–8000mm |
These filter bags capture sawdust and wood particles generated during furniture manufacturing and wood processing. They prevent equipment wear caused by abrasive particles and reduce fire hazards associated with combustible wood dust accumulation.
In grinding and polishing operations, the bags filter steel and aluminum dust, protecting workers from inhalation of harmful metal particulates. They also help maintain clean production environments and extend the service life of processing equipment.
Suitable for managing grain, sugar and spice dust in packaging and processing facilities, these bags comply with FDA food contact standards. They prevent product contamination and ensure compliance with food safety regulations.
The filter bags control silica dust from crushing and screening operations, aiding industrial operations in meeting OSHA respirable dust exposure limits. They contribute to safer working conditions and regulatory compliance in mining sites.
These polyester bags have 50–60% lower upfront cost than PTFE or PPS filters, making them suitable for high-volume, low-corrosion industrial applications. Their extended service intervals also reduce long-term operational costs.
The replacement process requires no special tools, reducing downtime during changeouts. Standardized dimensions ensure compatibility with existing inventory management systems for most commercial users.
The bags work with all pulse-jet, reverse-air and shaker baghouse systems, minimizing the need for equipment modifications. This compatibility allows seamless integration into existing dust collection setups.
Used polyester filter bags can be recycled through industrial textile recycling programs, reducing landfill waste compared to non-recyclable filter media. This feature supports the sustainability goals of enterprise customers.
We offer tailored solutions to meet specific dust removal requirements. Our process starts with lab testing of customer-provided dust samples to determine particle size distribution and recommend optimal pore size (1–200μm). Our engineering team then customizes bag dimensions and seam type (stitched or welded) based on existing equipment specifications. We also recommend appropriate surface treatments: singed finish for fine dust or glazed finish for sticky particles. All prototypes undergo 100-hour airflow testing to verify pressure drop and filtration efficiency before mass production. Our automated manufacturing lines have a capacity of 5000+ bags per week, with just-in-time delivery options available.
We offer three standard surface treatments: glazed, singed and calendared. The selection depends on the characteristics of the dust being filtered. Singed finish is recommended for fine dust, while glazed finish works better for sticky particles.
The base material is hydrophilic, but we offer an optional water-repellent coating that allows the bags to operate in environments with 60–80% relative humidity. For higher humidity levels, we recommend alternative filter media.
Standard custom orders have a lead time of 7–10 business days. For large-volume orders exceeding 10,000 bags, we will provide a specific delivery schedule based on production capacity.
