China Dust Collector Air Filter Cartridges Manufacturer

Dust collector air filter cartridges are the replaceable elements that capture particulate matter from industrial airflow streams. Their performance directly influences system pressure drop, emissions compliance, and maintenance frequency.

Product Overview

Cartridges consist of a pleated filter media wrapped around a rigid core, with end caps that seal against the housing. The pleated geometry increases surface area while keeping the overall footprint compact, allowing high airflow rates with limited space.

Typical configurations range from 0.3 m to 1.2 m in length and 0.15 m to 0.35 m in diameter, accommodating flow rates from 500 m³/h to over 20 000 m³/h per unit depending on the media selection and pleat depth.

Technical Specifications

Parameter	Typical Value	Unit
Filtration efficiency @ 0.3 µm (ISO 16890)	99.9 %	%
Initial pressure drop at nominal flow	<150	Pa
Maximum operating temperature	120 (standard media) / 200 (PTFE‑coated)	°C
Media tensile strength	>25	N/50 mm
End cap material	Galvanized steel or stainless steel (AISI 304/316)	–

Material Options

• Polyester needle‑felt – good balance of cost and chemical resistance for general dust.
• Polypropylene – suitable for moist or mildly corrosive environments.
• PTFE‑laminated polyester – provides low surface energy for sticky particulates and high temperature tolerance.
• Cellulose‑synthetic blend – higher dust holding capacity for coarse particles.

Applications – Why the Cartridge Fits

In metalworking shops, fine metal oxides and grinding swarf require sub‑micron capture to protect worker health and meet local emission limits; the high efficiency of PTFE‑laminated media reduces filter change frequency.

Woodworking facilities generate fibrous sawdust that can blind traditional bag filters; the pleated cartridge surface resists blasting and allows pulse‑jet cleaning without damaging the media.

Pharmaceutical powder handling demands absolute leak‑tightness; stainless‑steel end caps and sealed seams prevent bypass and facilitate sanitary cleaning-in-place (CIP) procedures.

Quality Control Philosophy

Each cartridge undergoes dimensional verification of pleat height, end‑cap concentricity, and media weight before leaving the line.

Filtration efficiency is confirmed on a laser‑based particle counter using a standardized test dust (ISO 12103‑1 A2) at multiple flow rates to ensure consistency across batches.

Pressure drop is measured across a calibrated flow bench; units exceeding the design limit are rejected and investigated for media compression or pleat deformation.

Packaging and Shipping

Cartridges are packed in single‑wall corrugated cartons with internal polyethylene sleeves to protect against moisture and mechanical impact during transit.

Standard pallet configuration holds 48 units (12 layers of 4) and is stretch‑wrapped; custom crating is available for overseas shipments requiring additional shock resistance.

Customization Options

• Media type and surface treatment (e.g., antistatic coating, flame retardant).
• Pleat depth and count to adjust filtration area versus pressure drop.
• End‑cap material, thickness, and sealing method (gasket, weld, or clamp).
• Length, diameter, and adapter flange dimensions to match specific housings.
• Optional pre‑installed gaskets or pressure‑equalization valves.

Frequently Asked Questions

Can dimensions be customized?

Yes, length, outer diameter, and end‑cap geometry are adjusted according to the housing drawings provided by the customer.

What information is required before quotation?

Application details (dust type, concentration, temperature, humidity), required airflow, housing dimensions, and any regulatory standards (e.g., NIOSH, ATEX).

How is quality inspected?

Each batch undergoes dimensional checks, media weight verification, and a full efficiency/pressure‑drop test on a calibrated test rig.

What packaging methods are available?

Standard cartons with PE liners, palletized stretch‑wrapped loads, or custom wooden crates for high‑value or delicate shipments.

Request a Quote