Acrylic Needle-Punched Felt Manufacturer for Asphalt Mixing & Clay Drying- Omela Filtration

Q: What operating conditions are suitable for Acrylic Needle-Punched Felt?

Acrylic felt performs best in medium-temperature, high-humidity, and mildly acidic environments . Suitable conditions include: Continuous temperature: 120°C (248°F) Peak temperature: 140°C (284°F) Moisture-rich flue gas Weak acidic compounds (SO₂, SO₃, organic acids) Not recommended for: Highly alkaline environments Strong oxidizing gases Temperature > 150°C

Q: What advantages does Acrylic Needle-Punched Felt offer compared to Polyester?

Acrylic felt is often chosen when moisture and hydrolysis are major risks . Key advantages over polyester: Much stronger hydrolysis resistance Better performance in condensation-prone dust collectors More stable at 120°C continuous operation Improved service life in acidic gas environments Polyester may fail prematurely under high humidity, while acrylic stays stable.

Q: What surface treatments are available for Acrylic Needle-Punched Felt?

Acrylic felt can be engineered with a range of functional finishes to improve performance: Singeing — reduces fiber shedding and creates a smoother surface Calendering — provides lower emissions and a denser surface structure Heat setting — improves dimensional stability Oil & water repellent finish — enhances moisture resistance PTFE membrane — delivers ultra-low emissions and lower pressure drop (ΔP) These treatments help reduce dust adhesion and extend bag life.

Q: What industries typically use Acrylic Needle-Punched Felt filter bags?

Acrylic felt is widely used in applications with moisture, acid vapors, and moderate temperatures : Municipal waste incineration Coal-fired boilers Biomass boilers Cement plants (secondary processes) Carbon black production Chemical industries Asphalt mixing plants (medium-temperature zones) Its stability in humid environments makes it a preferred choice for many boiler systems.

Q: How long is the typical service life of Acrylic Needle-Punched Felt filter bags?

Service life varies by operating conditions, but under normal conditions users can expect: 18–36 months in boiler applications 24–48 months in industrial dust filtration Longer life when PTFE membrane or repellent surface treatments are applied Service life depends heavily on: Flue gas moisture level pH and chemical exposure Cleaning system settings (pulse cycle, ΔP control) Air-to-cloth ratio

Q: Can Acrylic Needle-Punched Felt replace standard Polyester filter bags?

Yes—in environments where moisture is a problem. Acrylic is recommended when: Polyester bags show early hydrolysis failure Dew point corrosion is frequent Flue gas has acidic moisture Operating temperature is 100–130°C However, acrylic is not ideal for: High-temperature zones (>150°C) Strong alkaline gas conditions High oxidation environments

Acrylic Needle-Punched Felt

Acrylic Needle-Punched Felt Overview

Acrylic needle-punched felt is a non-woven filter media made from 100% homopolymer acrylic fibers, mechanically bonded through a high-density needling process to form a durable, three-dimensional felt structure. Unlike woven filter cloth, which relies on warp–weft yarn interlacing, acrylic felt uses a random fiber matrix that delivers superior dust-holding capacity, stable permeability, and highly consistent performance in pulse-jet baghouse systems.

Engineered for industrial dust filtration, acrylic needle-punched felt combines robust fiber strength, excellent hydrolysis resistance, and strong acid resistance—making it a reliable choice for cement mills, coal-fired boilers, waste-to-energy plants, biomass systems, and other environments where moisture and chemical exposure challenge conventional polyester bags.

Its inherent properties—including moisture tolerance, acid/solvent resistance, and stability under moderate temperatures—make acrylic felt an ideal filtration media for applications requiring durability, predictable ΔP behavior, and extended operational life.

Key Performance Benefits

Excellent hydrolysis & moisture resistance

ensures durability even in humid environments or where condensation may occur.

Good chemical resistance (acids, solvents, oxidants)

suitable for flue gas containing acidic or corrosive components.

Stable dust-holding capacity & permeability

the non-woven structure supports consistent filtration performance and extended bag life even under high dust loading

Compatibility with surface treatments and membranes

can be further enhanced with PTFE dipping or membrane lamination for ultra-low emission, oil/water repellency, or anti-static needs.

Suitable for mid-temperature industrial applications

typical working temperature up to ~130 °C, with short-term tolerance up to ~140 °C.

Versatile roll-goods supply or custom bag fabrication

available as fabric rolls or finished filter bags, depending on customers’ needs.

Acrylic Needle-Punched Felt Specifications

Item	Specification
Weight	300–600 g/m² ± 10%
Diameter	No limitation
Finish Treatment	Singeing, Calendering, Heat Setting
Air Permeability	200 – 350 L/m²·s @ 200 Pa
Tensile Strength (N/5 cm) – Warp	800
Tensile Strength (N/5 cm) – Weft	850
Tensile Elongation (%) – Warp	20
Tensile Elongation (%) – Weft	25
Continuous Temperature (°C/°F)	120°C / 248°F
Instant Temperature (°C/°F)	140°C / 284°F
Anti-acid	Excellent
Anti-alkali	Excellent
Anti-abrasion	Good
Hydrolysis Stability	Excellent

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INDUSTRIAL
APPLICATIONS

Acrylic needle-punched felt is widely used in industries where moisture, acidic gases or variable dust loads are common. Typical applications include:

More Applications

Coal mills & coal-fired power plants

Coal mills and low-temperature dedusting systems benefit from acrylic felt’s balanced temperature resistance (up to 130°C) and strong filtration of fine, combustible dust.

Lime Kilns

Acrylic felt performs reliably in drying kilns and quicklime handling systems where SO₂, moisture, or acidic gas traces are present.

Waste-to-energy incinerators

Acrylic needle-punched felt is well-suited for waste-incineration flue gas, where moisture condensation and acidic components are common.

Engineering Support & Customization

Pre-Project Technical Assessment

Assessment of temperature, moisture, and chemical conditions to verify suitability of acrylic felt for the application
Analysis of gas dew point risk to prevent hydrolysis and moisture-induced bag damage
Recommendation of felt weight, surface finish, and reinforcement options based on dust characteristics
Air-to-cloth ratio evaluation to optimize ΔP stability and reduce cleaning frequency
Sample acrylic felt media or trial bags provided for on-site performance comparison

Custom Engineering Solutions

Media customization: acrylic felt in various weights (300–600 g/m²), with optional singeing, calendaring, oil-/water-repellent, or PTFE surface treatment
Tailored design for high-humidity or acidic conditions, leveraging acrylic’s excellent hydrolysis resistance
Optimization of mechanical strength through customized reinforcement layers or seam engineering
Engineering support to match acrylic felt to existing baghouse systems without modifying structure
Optional hybrid media combinations (Acrylic + PTFE membrane) for enhanced fine-particle filtration

Production & Quality Assurance

Precision needle-punching process ensuring uniform fiber density and stable permeability
Surface finish control (singeing/heat-setting/calendaring) to reduce dust adhesion and improve cleaning behavior
Strength, elongation, and hydrolysis-resistance testing for every batch of acrylic felt
Dimensional stability verification under continuous temperatures of 120°C–130°C
Full inspection of felt uniformity, bonding integrity, and appearance quality before shipment

LET’S WORK TOGETHER

Why Choose Omela Filtration?

Choosing the right filtration supplier affects everything from system stability to maintenance downtime. At Omela Filtration, we combine reliable materials, controlled production, and years of industry experience to support dust and liquid filtration needs across different plants and applications.

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Premium Materials & Stable Quality

We use consistent-grade filter media, sewing thread and metals sourced from qualified suppliers. Each batch is checked for weight, thickness, air permeability and tensile strength to keep performance steady across shipments.

Advanced Production & On-Time Delivery

Our facility is equipped with modern sewing lines, hot-welding machines and automated inspection tools. This keeps production efficient and helps us meet tight delivery schedules, even on custom orders.

Experienced Team with Practical Know-How

Our engineers and technicians have long experience with dust collectors, liquid systems and industry-specific conditions. They help you match materials to temperature, chemistry and air-to-cloth ratios to avoid unnecessary failures.

Fast Service & Clear Communication

From sampling to documentation and shipping, our team responds quickly and keeps information clear. Customers in cement, asphalt, power and water-treatment plants rely on our service to resolve problems without delay.

Full-Cycle Technical Support

From the first technical discussion to installation and long-term maintenance, our team stays involved at every stage. We analyze your operating conditions, adjust product designs when needed, and ensure the final filtration setup works reliably in real plant environments. After delivery, our service team continues to provide guidance and troubleshooting support, helping you keep your system stable and downtime low.