Home

Service And Parts

Filter Bags and Cages

Dust Collector Bags: Comprehensive Guide to Optimal Filtration

Filter Media Fundamentals

Selecting the right filter media is essential

Nederman MikroPul offers a wide range of dust collector bags and cages designed to ensure an optimal fit and superior performance for your dust collection system. The right filter media lets your system reach peak filtration efficiency — and Nederman MikroPul supplies high-quality media and hardware compatible with all of its dust collectors.

Extensive media selection

A broad range of felts, woven fabrics, and fiberglass media covers virtually any application, from nuisance dust to high-temperature process gas.

Any OEM-style baghouse

Bags, cages, and hardware are engineered to accommodate OEM-style baghouses including Donaldson, MAC, Torit, Camfil Farr, UAS, and others as well as MikroPul-built equipment.

Guided selection

A detailed finish guide below helps you match media to your specific dust, temperature, and process conditions — with experts on hand if you need a second opinion.

Loading component...

Dust Collector Bags & Cages

The right filter
media for every
application

Nederman MikroPul is a single source for dust collector filter bags and cages engineered for optimal fit and superior performance — compatible with MikroPul equipment and OEM-style baghouses alike, with fabric finishes built for heat, abrasion, moisture, and chemical exposure.

Loading component...

Specialized finishes
across fiberglass and non-fiberglass fabric media

Direct fit
for MikroPul equipment and OEM-style baghouses alike

Single source
for filter bags, cages, and compatible hardware

Speak with an expert

Loading component...

Bags

Types of Dust Collector Bags

Pulse Jet Bags

Ideal for dry dust applications
Operate at higher air-to-cloth ratios than shaker or reverse air collectors
Dust collects on the outside of the bag
Cleaned through a high pressure blast of compressed air
Typically made from non-woven materials unless used in high-temperature applications
Compatible with Pulsaire units with bags up to 26 feet in length

Pleated Bags for Pulse Jet Dust Collectors

MikroPul’s pleated bags offer solutions for issues like bottom bag abrasion, insufficient airflow, high pressure drop, and elevated emission rates.
Increase filtration area by 200-300%, reducing air-to-cloth ratios and allowing higher airflow.
Serve as direct replacements for traditional filter bags and cages
Benefits include reduced emissions, lower maintenance costs, improved dust release, and extended filter life

Reverse Air Bags

Suitable for large air volume applications such as wood and metal industries
Dust collects on the inside of the bags
Cleaned through a back flush or air and mechanical flexing of the bag fabric
Features off-line cleaning with bags that remain open during cleaning due to anti-collapse rings
Typically made from woven or lightweight non-woven filter bags

Loading component...

Do I need Pleated Bags

Standard vs. pleated pulse jet bags

MikroPul's pleated bags are engineered as direct replacements for standard filter bags and cages — no housing modifications needed. If you experience any of the below problems, it may be the right choice to change from standard bags to pleated bags.

Problem

Bottom bag abrasion
Insufficient airflow
High pressure drop
Elevated emission rates

Pleated bag advantages

Direct replacement for traditional filter bags and cages
200–300% more filtration area, lowering air-to-cloth ratio and allowing higher airflow
Reduced emissions and improved dust release
Lower maintenance costs and extended filter life

Loading component...

From Installation to Lifetime Care

Industrial air pollution control equipment is vital to safe, efficient, and compliant operations.

With decades of application expertise across foundries, secondary aluminum, steel, asphalt, and other heavy process industries, we combine OEM engineering, local field service, and fast spare part availability to keep your systems running at peak performance.

Our goal is simple: minimize downtime, reduce energy use, and maintain full environmental compliance — so your
operation stays compliant, efficient, safe, and sustainable.

Speak with an expert

Loading component...

Filter Bag Finishes

Finishes to match heat, abrasion, moisture, and chemistry

To enhance the performance of your dust collector bags, MikroPul offers fabric finishes across non-fiberglass felts and woven fabrics, plus dedicated fiberglass finishes for the highest-temperature and most corrosive applications.

Non-Fiberglass Finishes

Singe

Improves dust cake release.

Available for:

Polyester

Polypropylene

Acrylic

Aramid

PPS

P84

Glaze

Provides temporary dust cake release but may reduce airflow.

Available for:

Polyester

Polypropylene

Silicone

Offers limited water repellency.

Available for:

Polyester

Woven fabrics

Flame Retardant

Reduces intensity of flammable substances. Not flame-proof.

Available for:

Polyester

Polypropylene

Woven fabrics

Acrylic Coatings (Latex Base)

Improves filtration efficiency and cake release, though may impede flow in some applications.

Available for:

Polyester

Acrylic

PTFE Surface Treatments & Laminates

Enhances fine particle capture, filtration efficiency, and cake release.

Available for:

Polyester

Polypropylene

Acrylic

Aramid

PPS

PTFE

PTFE / Fluorocarbon Bath Treatments

Provides water and oil repellency with limited cake release.

Available for:

Polyester

Polypropylene

Aramid

PPS

ePTFE Membrane (Mikrotex)

Mikrotex can be thermobonded to woven, felted, and spunbond filter media including fiberglass. Fine particle capture, improved filtration efficiency, and cake release.

Applicable for:

Cement / lime kilns

Incinerators

Coal-fired boilers

Cupola

Ferro/silica alloy furnaces

Acid Resistant

Improves acid resistance and water repellency.

Available for:

Aramid

Fiberglass Finishes

ePTFE Membrane (Mikrotex)

Mikrotex can be thermobonded to woven, felted, and spunbond filter media including fiberglass. Fine particle capture, improved filtration efficiency, and cake release.

Applicable for:

Cement / lime kilns

Incinerators

Coal-fired boilers

Cupola

Ferro/silica alloy furnaces

Silicone, Graphite & Teflon (Graf-O-Sil)

Protects glass yarns from abrasion and adds lubricity, in non-acidic conditions.

Applicable for:

Cement

Metal foundry

Acid Resistant (Chemflex)

Shields glass from acid attack.

Applicable for:

Coal-fired boilers

Carbon black

Incinerators

Cement

Municipal boilers

Teflon B (Tuflex)

Enhances abrasion resistance and provides limited chemical resistance under mild pH conditions.

Applicable for:

Industrial boilers

Utility base load boilers

Chemical Resistant

Acid resistance, release properties, abrasion resistance, alkaline resistance, and improved fiber encapsulation.

Applicable for:

Coal-fired boilers (high/low sulfur)

Fluidized bed boilers

Carbon black

Incinerators

Loading component...

Ready for modernization or expansion?

Existing plants often need to meet new production requirements, stricter clean-gas expectations or changing conditions. We support:

Modernization of existing dust collectors
Expansion of installed systems
Retrofit to changed process requirements
Technical optimization of plant performance

Speak with an expert

Loading component...

Selection Guide

What's stressing your filter bags

Match the finish to the condition doing the most damage. Most applications are shaped by one or two of these factors more than the rest.

Heat

Cement/lime kilns, incinerators, coal-fired boilers, and furnaces call for fiberglass media or an ePTFE membrane finish.

Mikrotex

Chemflex

Abrasion

Bottom bag abrasion is a common pleated-bag upgrade trigger; Graf-O-Sil protects glass yarns and adds lubricity.

Pleated bags

Graf-O-Sil

Moisture & Oil

Silicone finishes and PTFE or fluorocarbon bath treatments add water and oil repellency to felts and woven fabrics.

Silicone

PTFE bath

Acid & Chemical Exposure

Acid-resistant Aramid felts and fiberglass Chemflex or chemical-resistant finishes protect against corrosive process gas.

Acid resistant

Chemical resistant

Working with combustible dust specifically? See MikroPul's combustible dust handling for grounding, venting, and NFPA-aligned equipment.

Loading component...

Comparison Table

Filter Bag Media Comparison Table

Media	Max Continuous Operating Temperature	Abrasion	Energy Absorption	Filtration Properties	Moist Heat	Alkaline	Mineral Acids	Oxygen (10%+)
Polypropylene	170F	Excellent	Good	Good	Excellent	Excellent	Excellent	Excellent
Polyester	275F	Excellent	Excellent	Excellent	Poor	Fair	Fair	Excellent
Acrylic	265F	Good	Good	Good	Excellent	Fair	Good	Excellent
Fiberglass	500F	Fair	Fair	Fair	Excellent	Fair	Poor	Excellent
Aramid	375F	Excellent	Good	Excellent	Good	Good	Fair	Excellent
PPS	375F	Good	Good	Excellent	Good	Excellent	Excellent	Poor
Polymide (P84)	500F	Fair	Good	Excellent	Good	Fair	Good	Excellent
Hydro-entangled Polyester	275F	Excellent	Excellent	Excellent	Poor	Fair	Fair	Excellent
Hydro-entagled Aramid	400F	Excellent	Good	Excellent	Good	Good	Fair	Excellent
Hydro-entangled PPS	375F	Good	Good	Excellent	Good	Excellent	Excellent	Poor
Hydro-entangled Polypropylene	170F	Excellent	Good	Good	Excellent	Excellent	Excellent	Excellent
Teflon	500F	Good	Fair	Excellent	Excellent	Excellent	Excellent	Excellent

Loading component...

Common things to know

Frequently Asked Questions

Answers for maintenance & EHS teams

What's the difference between standard dust collector bags and pleated bags?

Standard bags use a single layer of flat or tubular fabric. Pleated bags fold the media into a corrugated shape that packs more surface area into the same housing footprint, increasing filtration area by 200 to 300 percent. That lowers the air-to-cloth ratio and allows higher airflow, and pleated bags are built as direct replacements so existing housings and cages don't need to change.

Loading component...

Will Nederman MikroPul filter bags and cages fit OEM baghouses from other manufacturers?

MikroPul engineers its filter media and hardware to accommodate OEM-style baghouses, not only MikroPul-built collectors. Because tube sheet layouts and cage attachments vary by manufacturer and model, it's worth confirming your specific baghouse with MikroPul's parts team before ordering.

Loading component...

How do I choose the right fabric finish for my application?

Start with what's stressing the bag: heat, abrasion, moisture, or chemical exposure. Non-fiberglass finishes cover felts and woven fabrics such as polyester, polypropylene, acrylic, aramid, PPS, and P84, while fiberglass-specific finishes are built for the highest-temperature applications, including cement and lime kilns and coal-fired boilers.

Loading component...

How often do dust collector bags need to be replaced?

There's no universal interval. Bag life depends on dust loading, temperature, and the finish selected. MikroPul's on-site assessments and inspections are designed to evaluate wear and recommend a replacement schedule specific to your system.

Loading component...

Can filter bags handle abrasive applications?

Pleated bags address bottom bag abrasion directly, and several finishes, including PTFE surface treatments, acid-resistant coatings, and chemical-resistant fiberglass options, are built for harsh, high-wear, or corrosive conditions.

Loading component...

What is the Octoslag system and how does it improve foundry safety?

Octoslag is a fully automatic slag cleaning system designed to remove slag from the furnace with near-complete elimination of manual operator work at the furnace face. The system is operated remotely from a safe, air-conditioned control cabin, removing workers from the hazardous zone around the furnace — eliminating exposure to heat, molten metal splash, and toxic fumes during the slag removal phase. Additional operational benefits include faster slag removal due to a more controlled process, reduced furnace heat loss (shorter open-furnace time), and simplified extraction duct design allowing a more compact installation footprint.

Loading component...

Let's Solve Your Problems

Talk to a Process Technology Expert Today

Connect with Nederman MikroPul to service or upgrade your dust collector.

Loading component...

Nederman MikroPul Americas

Dust Collection Systems

Protecting People, Uptime, Performance with Nederman MikroPul. Thousands of Installations Worldwide

4433 Chesapeake Dr, Charlotte, NC 28216, USA

+1 704-285-1754

Loading component...

Loading component...

Dust Collector Bags: Comprehensive Guide to Optimal Filtration

Selecting the right filter media is essential

Extensive media selection

Any OEM-style baghouse

Guided selection

Loading component...

Dust Collector Bags & Cages

The right filtermedia for everyapplication

Loading component...

Loading component...

Types of Dust Collector Bags

Pulse Jet Bags

Pleated Bags for Pulse Jet Dust Collectors

Reverse Air Bags

Loading component...

Standard vs. pleated pulse jet bags

Problem

Pleated bag advantages

Loading component...

From Installation to Lifetime Care

Loading component...

Finishes to match heat, abrasion, moisture, and chemistry

Singe

Glaze

Silicone

Flame Retardant

Acrylic Coatings (Latex Base)

PTFE Surface Treatments & Laminates

PTFE / Fluorocarbon Bath Treatments

ePTFE Membrane (Mikrotex)

Acid Resistant

ePTFE Membrane (Mikrotex)

Silicone, Graphite & Teflon (Graf-O-Sil)

Acid Resistant (Chemflex)

Teflon B (Tuflex)

Chemical Resistant

Loading component...

Ready for modernization or expansion?

Loading component...

What's stressing your filter bags

Heat

Abrasion

Moisture & Oil

Acid & Chemical Exposure

Loading component...

Filter Bag Media Comparison Table

Loading component...

Frequently Asked Questions

Loading component...

Loading component...

Loading component...

Loading component...

Loading component...

Loading component...

Talk to a Process Technology Expert Today

Loading component...

Loading component...

Loading component...

Selecting the right filter media is essential

Extensive media selection

Any OEM-style baghouse

Guided selection

The right filtermedia for everyapplication

Types of Dust Collector Bags

Pulse Jet Bags

Pleated Bags for Pulse Jet Dust Collectors

Reverse Air Bags

Standard vs. pleated pulse jet bags

Problem

Pleated bag advantages

From Installation to Lifetime Care

Finishes to match heat, abrasion, moisture, and chemistry

Singe

Glaze

Silicone

Flame Retardant

Acrylic Coatings (Latex Base)

PTFE Surface Treatments & Laminates

The right filter
media for every
application

The right filter
media for every
application