How the PTFE filter felt is produced?【Video】

This video demonstrates the complete manufacturing process of PTFE needle punched felt used in industrial dust filtration systems.

Production Process Overview

This video provides a step-by-step overview of how PTFE needle punched felt is manufactured, from raw fiber preparation to finished fabric rolling. Each stage plays a critical role in ensuring stable filtration efficiency, mechanical strength, and long-term performance in demanding industrial environments.

1. Pre-treatment:High-purity PTFE fibers are carefully inspected, cleaned, and conditioned before processing. This step ensures excellent chemical resistance, thermal stability, and consistent fiber quality, which are essential for high-temperature and corrosive filtration applications.
2. 2. Feeding:The prepared fibers are evenly fed into the production line using a controlled feeding system. Precise feeding guarantees uniform fabric weight, thickness, and structural consistency throughout the production process.
3. 3. Carding & Combing:During carding and combing, PTFE fibers are aligned and evenly distributed to form a stable fiber web. This process removes impurities and enhances fiber uniformity, forming the foundation for strong mechanical properties and reliable filtration performance.
4. 4. Layering & Needle Punching:Multiple layers of fiber webs are stacked and mechanically entangled using high-precision needle punching machines. This step increases fabric density, tensile strength, and dust capture capability, resulting in a durable and high-efficiency filter felt structure.
5. 5. Rolling:The finished PTFE needle punched felt is rolled, inspected, and prepared for further processing or delivery. Strict quality control ensures consistent dimensions and stable performance suitable for industrial dust collection systems.

Key Topics Covered in This Video

1. PTFE fiber preparation and pre-treatment process
2. Needle punching technology and fabric structure formation
3. Quality control during PTFE filter felt production
4. Performance advantages in high-temperature dust filtration
5. Manufacturing consistency for industrial-scale applications

Applications of PTFE Needle Punched Felt

PTFE needle punched felt is widely used in industrial dust collection systems where high temperature resistance, chemical stability, and long service life are required.

Typical applications include:

• Cement kiln and clinker dust collection

• Waste incineration flue gas filtration

• Steel and metallurgical plants

• Chemical and pharmaceutical industries

• Power plants and industrial boilers

Related Products

• PTFE Filter Bags – Designed for high-temperature and corrosive environments

• PTFE Membrane Filter Bags – Enhanced surface filtration efficiency

• High-Temperature Dust Collector Filter Bags – Suitable for harsh industrial conditions

Why Choose PTFE Needle Punched Felt?

• Excellent resistance to high temperatures and chemical corrosion

• Stable filtration efficiency under harsh operating conditions

• Long service life and reduced maintenance costs

• Suitable for customized industrial dust filtration solutions

Need a Customized Filtration Solution?

Different industries and operating conditions require different filtration designs.
Our engineering team can provide customized PTFE filter bag and industrial dust filtration solutions based on:

• Flue gas temperature

• Dust characteristics

• Chemical composition

• Dust collector design and operating conditions