Meta-Aramid Nomex Filter Bag

What Is a Nomex (Meta-Aramid) Filter Bag?

A Nomex filter bag, also known as a meta-aramid filter bag, is a high-performance filtration solution engineered for use in extreme temperature environments. These bags are commonly utilized in iron and steel plants, asphalt mixing units, cement production, lime kilns, and other high-heat industrial operations where standard filter materials like polyester may degrade quickly or even fail.

Manufactured from meta-aramid fiber—a flame-resistant and thermally stable synthetic material—Nomex filter bags can withstand continuous operating temperatures up to 200°C, with short-term spikes even higher. This makes them an ideal choice for facilities where combustion resistance and long-term durability are critical to safe and efficient filtration.

At Fora Filter, we produce Nomex filter bags in compliance with international quality and safety standards, using fabric weights ranging from 400 to 600 g/m², depending on your system’s design and dust load.

Why Choose a Nomex Filter Bag for Your Dust Collection System?

Not every filter material is suitable for every environment. If your industrial process involves:

• High temperatures above 150°C

• Thermal shocks or fluctuations

• The presence of oxidizing agents or solvents

• Frequent start-stop operations in heated environments

…then a Nomex filter bag may be the optimal choice.

These filter bags offer:

• Superior thermal resistance

• Flame-retardant properties

• Good resistance to solvents and oxidation

• Moderate resistance to acids, alkalis, and hydrolysis

• Reliable filtration performance over extended service life

While Nomex is more expensive than polyester, it often delivers better cost-efficiency over time by reducing system failures, minimizing maintenance, and enhancing safety.

Industries That Use Nomex Filter Bags

Nomex filter bags are trusted by a wide range of industries that demand thermal durability, chemical resistance, and mechanical strength. Common applications include:

• Iron and steel production

• Asphalt and bitumen mixing plants

• Cement and lime kilns

• Foundries and metal casting

• Coal and solid fuel handling systems

• Power generation and incineration units

Because meta-aramid fibers retain their physical integrity even under extreme temperatures, Nomex filter bags are often the first line of defense in critical dust filtration systems.

Need an Even Higher Temperature Filter Bag?

While Nomex is an excellent choice for most high-temperature applications, some industrial processes demand even greater resistance. If your operation involves aggressive chemicals or temperatures exceeding 200°C, we may recommend using P84 (polyimide) filter bags or PTFE (Teflon) filter media, which are engineered for even more extreme conditions.

Let’s Select the Right Filter—Together

Choosing the right filter bag isn’t just about fitting a system—it’s about optimizing your process, protecting your equipment, and complying with environmental standards. Key parameters we assess include:

• Continuous and peak operating temperatures

• Chemical exposure in the air stream

• Dust composition and moisture content

• Filter system configuration and airflow capacity

With years of hands-on experience, the technical experts at Fora Filter are here to help you make an informed, confident choice. Whether you’re evaluating Nomex filter bags or exploring alternative materials, we’re ready to assist.

Get in Touch for Expert Consultation
Need a recommendation tailored to your industry and process? Contact us via email, phone, or WhatsApp for customized filter bag solutions, technical support, and fast quotations.