What is air-to-cloth ratio and why does it matter?

It is airflow divided by filter media area — effectively the face velocity through the media. Too high and the dust cake is driven into the media, causing permanent blinding. Fine or cohesive dust needs a lower ratio, typically under 1.2:1.

Is explosion protection always required?

If the dust has a Kst above zero, it is explosible and protection must be assessed. We start with a laboratory Kst and Pmax test on your actual material — generic values from literature are not an acceptable basis for design.

Can you retrofit an existing collector?

Yes. Re-bagging, converting timer cleaning to on-demand, adding explosion protection, and upgrading media to PTFE membrane are all common retrofit scopes that can be executed in a shutdown window.

Dust Collection Systems — CYCLA Series

Q: How do I choose between bags and cartridges?

Cartridges offer far more area per unit volume and suit fine, dry, free-flowing dust below 80 °C. Bags handle high temperature, moisture, sticky dust and heavy loading. Above 120 °C or with any condensation risk, bags are the safer engineering choice.

CYCLA Series

Pulse-jet baghouses, cartridge collectors and cyclones delivering outlet emissions below 5 mg/Nm³ with ATEX-compliant explosion protection.

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Guaranteed outlet emission: < 5 mg/Nm³
Outlet emission: < 5 mg/Nm³ guaranteed; < 1 mg/Nm³ with membrane media
Standard configurations: 5
Industries served: 6

Overview

Emission compliance and explosion protection in one design.

A dust collector is two systems sharing a housing: a filtration system that must meet an emission limit, and a safety system that must contain a deflagration. Designing one without the other is how dust collectors become incidents.

CYCLA collectors are designed against the measured Kst and Pmax of your actual dust, not a generic table value. Vent area is calculated to EN 14491 and NFPA 68, and where venting to atmosphere is not possible, we specify flameless venting or chemical suppression.

On the filtration side, can velocity governs whether a baghouse works. Too high and dislodged dust re-entrains onto adjacent bags instead of falling to the hopper, and the collector never recovers its clean differential pressure. We hold can velocity below 1.5 m/s as design practice.

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Specifications

Technical envelope

Air volume: 500 to 250,000 m³/h
Outlet emission: < 5 mg/Nm³ guaranteed; < 1 mg/Nm³ with membrane media
Air-to-cloth ratio: 0.8:1 to 2.5:1 depending on dust and media
Can velocity: ≤ 1.5 m/s design maximum
Cleaning: Pulse-jet on demand, 2 to 6 bar compressed air
Media: Polyester, PTFE membrane, Nomex, P84, PPS, fibreglass, antistatic
Operating temperature: Up to 260 °C with appropriate media selection
Explosion protection: EN 14491 / NFPA 68 venting, flameless venting, or suppression

Configurations

CYCLA-BH
Pulse-jet baghouse for high-volume, high-temperature process dust.
CYCLA-CT
Cartridge collector with pleated media for fine dust in a compact footprint.
CYCLA-CY
Cyclone pre-separator for coarse and abrasive bulk loading.
CYCLA-WT
Wet scrubber for combustible metal dust and sticky particulate.
CYCLA-ATX
Fully ATEX-certified assembly with venting, isolation and earthing scheme.

Advantages

What this platform does that a catalogue item does not.

Vented against your dust, not a table

We use the measured Kst and Pmax of your material to calculate vent area to EN 14491 and NFPA 68.

Can velocity held below 1.5 m/s

Correct hopper and inlet geometry lets dislodged dust fall rather than re-entrain, keeping the clean differential pressure stable for years.

Cleaning on demand, not on timer

Differential-pressure-triggered pulsing cuts compressed-air consumption 40–60% against fixed-interval cleaning and doubles bag life.

Emission limit contractually guaranteed

Outlet concentration is a performance guarantee verified by isokinetic stack sampling at handover.

Applications

Where it is installed

Cement mill, kiln and packing-plant dedusting

Steel foundry, arc furnace and shot-blast extraction

Pharmaceutical granulation and tablet-press containment

Woodworking, composite and grain-handling dust control

Welding, grinding and thermal-cutting fume extraction

Mineral processing, crushing and conveyor transfer points

Industries

Sectors this platform serves

Cement & Building Materials

Emission compliance at kiln temperature.

Steel & Metals

Filtration that stands up to scale, heat and abrasion.

Mining & Minerals

Separation at tonnage, in the places infrastructure forgot.

Pharmaceutical & Biotech

Filtration that survives the audit as well as the process.

Chemical Processing

Compatibility engineered before the first litre flows.

Pulp & Paper

Machine uptime protected sheet by sheet.

Technical drawings

Issued with every order

Collector general arrangement

Housing, hopper, fan and stack with structural interfaces.

Bag and cage schedule

Quantity, dimensions, media and finish per compartment.

Explosion venting layout

Vent panel positions, areas and safe discharge envelope.

Ducting and hood design

Capture velocities, transport velocities and branch balancing.

Downloads

Datasheets, CAD and manuals

CYCLA Series Technical Datasheet

PDF · 6.9 MB

Dust Explosion Protection Guide

PDF · 4.3 MB

Filter Media Selection Matrix

PDF · 1.4 MB

Emission Test Report Sample

PDF · 0.8 MB

FAQs

Questions engineers ask about dust collection systems

Cartridges offer far more area per unit volume and suit fine, dry, free-flowing dust below 80 °C. Bags handle high temperature, moisture, sticky dust and heavy loading. Above 120 °C or with any condensation risk, bags are the safer engineering choice.