Cartridge Filter Bank for Powder Recovery Systems

Product Specifications

Technical details and manufacturing context for Cartridge Filter Bank

Definition

The Cartridge Filter Bank is a critical component of the Powder Recovery Unit, consisting of multiple individual cartridge filters housed in a common enclosure. It functions as the primary filtration stage, capturing overspray powder particles from the air stream during powder coating operations, allowing clean air to pass through while collecting recoverable powder for reuse. The bank is designed as a modular assembly, with filters arranged in parallel to achieve the required filtration area and air flow capacity. Typical configurations include 4 to 24 cartridges per bank, with a total effective filtration area ranging from 20 to 100 m². The filter cartridges are standard pleated types with diameters of 325–350 mm and lengths of 600–2000 mm, with custom lengths available. The housing is constructed from galvanized steel or stainless steel (304/316L) depending on the model, and includes a stainless steel support cage for each cartridge. Filter media is typically polyester, with polypropylene end caps. Seals are available in NBR, EPDM, or Viton, depending on temperature requirements. The bank operates at a maximum temperature of 80–120 °C and an operating pressure of 1.0–1.6 MPa. Initial pressure drop is 0.3–0.6 kPa, and air flow rate ranges from 3000 to 15000 m³/h. Filtration precision is 0.5–5 µm with a beta ratio ≥200 (ISO 16889). The dry weight (without cartridges) is 150–800 kg, and dimensions vary with configuration, typically from 1200×800×1500 mm to 3000×1500×2500 mm. These values are reference ranges; verify model-specific specifications with the manufacturer. The filter bank is designed for integration into powder coating systems, where it captures overspray powder for recovery and reuse. Proper selection requires consideration of air flow, particle size, temperature, and pressure conditions. Regular maintenance includes monitoring pressure drop and performing pulse-jet cleaning to dislodge accumulated powder cake. Failure to maintain proper cleaning can lead to reduced filtration efficiency and increased pressure drop, indicating the need for cartridge replacement or system inspection.

Working Principle

Contaminated air containing overspray powder enters the filter bank housing. The air passes through the porous media of multiple cartridge filters arranged in parallel. Powder particles are captured on the exterior surface of the filter media, forming a powder cake. Clean air exits through the filter interiors. Periodic pulse-jet cleaning dislodges the powder cake into a collection hopper below.

Common Materials

Polyester filter media, Polypropylene end caps, Galvanized steel housing, Stainless steel support cage

Technical Parameters

Parameter	Typical range	Notes & selection driver
Filtration Area	20–100 m²	Total effective filtration area per bank
Filtration Precision	0.5–5 µm	Beta ratio ≥200ISO 16889
Maximum Operating Temperature	80–120 °C	Depends on filter media
Operating Pressure	1.0–1.6 MPa
Pressure Drop	0.3–0.6 kPa	Initial clean filter
Air Flow Rate	3000–15000 m³/h	At 1.0 MPa inlet
Filter Cartridge Diameter	325–350 mm	Standard pleated cartridge
Filter Cartridge Length	600–2000 mm	Custom lengths available
Number of Cartridges	4–24 pcs	Per bank
Housing Material	304/316L	Stainless steelASTM A240
Seal Material	NBR/EPDM/Viton	Temperature dependent
Weight	150–800 kg	Dry weight, without cartridges
Dimensions (L×W×H)	1200×800×1500–3000×1500×2500 mm	Varies with configuration

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Filter Cartridge
Primary filtration element that captures powder particles

Material: Polyester media with polypropylene end caps
Support Cage Part
Internal structure that maintains filter shape during operation and cleaning

Material: Stainless steel
Pulse-Jet Cleaning Nozzle
Directs compressed air pulses to clean filter surfaces

Material: Stainless steel or aluminum
Mounting Plate Part
Secures filter cartridges in position within the housing

Material: Galvanized steel
Filter Bank Housing
The shell the dirty air enters and the cartridges hang in; it splits dirty side from clean side.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Powder Recovery Unit

View system integration details

Powder Recovery System

View system integration details

Manufacturers of Cartridge Filter Bank

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 6 September 2026

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Frequently Asked Questions

What is the typical filtration area range for a cartridge filter bank?

The total effective filtration area per bank typically ranges from 20 to 100 m², depending on the number of cartridges and their dimensions. The exact value should be confirmed with the manufacturer for the specific model.

What filtration precision can be expected?

The filtration precision is typically 0.5 to 5 micrometers, with a beta ratio of at least 200 as per ISO 16889. This indicates high efficiency in capturing particles in that size range.

How does pulse-jet cleaning work in this filter bank?

Pulse-jet cleaning uses short bursts of compressed air to create a pressure wave that flexes the filter media, dislodging the accumulated powder cake. The dislodged powder falls into a collection hopper below for recovery.

What materials are used in the construction?

The filter media is typically polyester, with polypropylene end caps. The housing can be galvanized steel or stainless steel (304/316L), and the support cage is stainless steel. Seals are available in NBR, EPDM, or Viton, depending on temperature requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 bar (145 psi)
flow rate:	100-5000 m³/h per module
temperature:	-20°C to 120°C
slurry concentration:	Up to 30% solids by weight

Cartridge Filter Bank

Product Specifications

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