Cotton filter bags are commonly used for liquid or gas filtration, utilizing the fibrous structure of cotton to trap solid impurities. These filter bags are widely used in industries such as chemical, food processing, pharmaceuticals, and water treatment. Due to the natural properties of cotton fibers, they possess good absorbency, breathability, and relatively low cost, making them suitable for applications with less stringent filtration requirements.

Description

With over 20 years of manufacturing experience, Filmedia® is committed to delivering FDA- and ISO 9001-certified cotton filter bags of superior quality. Our in-house factory and advanced production lines ensure fast turnaround and reliable quality control, meeting both standard and custom production requirements. The cotton filter bags are made of high-quality food-grade cotton material, fully compliant with FDA- and ISO 9001-certified standards, and are ideal for air and liquid filtration.

  • Food-Grade Cotton Material: Made from high-quality cotton that meets FDA requirements, ensuring safety for food and pharmaceutical applications.
  • High Temperature Resistance: Operates steadily at temperatures up to 150 °C (302 °F).
  • Excellent Oxidation Resistance: Offers long-term durability and reliability under various working conditions.
  • Stable Chemical & Mechanical Properties: High tensile strength and resistance to wear and deformation.
  • Easy Installation and Replacement: Simple structure allows for quick setup, operation, and maintenance.
  • Wide Application Range: Suitable for household and industrial filtration, covering a wide range of micron ratings.
  • Customizable Design: Available in standard and tailor-made dimensions to fit most air and liquid filter housings.

Technical Specifications

Parameter Description
Material Cotton
Filtration Efficiency Up to 90%
Micron Rating 5 – 300 μm (Typical: 200 μm)
Operating Temperature 135 °C – 150 °C
Permeability 20 – 25 CFM @ 5″ H₂O
Common Sizes 7″ × 16.5″, 7″ × 32″, 4″ × 8″, etc

Common Size

Model No. Bag Diameter Bag Length Max Flow Rate Filter Area
01# φ180 mm / 7” 430 mm / 17” 20 m³/h 0.25 m²
02# φ180 mm / 7” 810 mm / 32” 40 m³/h 0.50 m²
03# φ105 mm / 4” 230 mm / 9” 6 m³/h 0.09 m²
04# φ105 mm / 4” 380 mm / 15” 12 m³/h 0.16 m²
05# φ155 mm / 6” 560 mm / 22” 18 m³/h 0.25 m²

Micron Conversion Table

Mesh (MESH) 12000 5000 2500 1250 625 312 156 80 70 60 50 45 40 35 30 25 20 18 16 14 12 10
Micron (μm) 1 3 6 12 25 50 100 190 210