OEM Filter Cartridges for Dust Collector Silos

Product Overview

Filter cartridges are the core filtration element in silo dust collection systems, capturing airborne particulates before they reach the storage vessel. Their geometry, media type, and sealing method directly influence pressure drop, collection efficiency, and service life.

As an OEM supplier, we manufacture cartridges to the exact dimensions, flange specifications, and performance criteria defined by the silo equipment designer, ensuring drop‑in replacement without modification to the housing.

Design Characteristics

Cartridges are typically constructed with a pleated filter media pack housed in a cylindrical metal or composite core. The pleat height, number of pleats, and media depth determine the effective filtration area.

• Pleat height: 20 mm to 50 mm, adjustable per project.
• Number of pleats: 80 to 200, influencing surface area from 2 m² to 12 m² per cartridge.
• Core material: galvanized steel, stainless steel 304, or reinforced polypropylene, selected for corrosion resistance.
• End caps: molded plastisol or metal with integrated gasket seat for a leak‑tight seal.

Filter Media Options

Media selection balances particle capture efficiency, airflow resistance, and chemical compatibility with the dust being handled.

Performance Parameters

Key performance indicators are measured under standard test conditions (ISO 5011) and reported as nominal values; actual performance varies with dust loading, airflow, and cleaning method.

• Initial pressure drop: 80 Pa to 150 Pa at 0.5 m/s face velocity (depending on media).
• Maximum sustained pressure drop before cleaning: 600 Pa.
• Cleaning method compatibility: pulse‑jet, reverse‑air, or mechanical shaker.
• Expected service life: 6 months to 2 years based on dust concentration and cleaning frequency.

Typical Applications in Silo Dust Collection

Silo dust collectors protect stored bulk materials from contamination and prevent dust emissions that could violate workplace safety regulations. The cartridge must handle the specific dust characteristics generated during filling, conveying, and aeration.

Examples include:

• Cement and fly‑ash silos – high temperature, abrasive dust.
• Grain and feed storage – organic dust requiring antimicrobial media.
• Plastic pellet silos – fine polymer powders needing low electrostatic discharge.
• Chemical powder silos – corrosive vapors demanding chemically resistant media.

Customization & OEM Integration

We work directly with silo manufacturers to translate design drawings into production tooling. Customization options include:

• Outer diameter and length to match existing housing tolerances (±0.2 mm).
• Flange or bolt‑hole patterns per client CAD files.
• Media blend ratios for hybrid efficiency/temperature requirements.
• Special end‑cap coatings (e.g., anti‑static, FDA‑grade silicone).
• Private labeling and packaging for drop‑ship to end‑users.

Lead time for tool‑free cartridges is typically 3‑4 weeks; projects requiring new tooling average 6‑8 weeks.

Quality Assurance

Each cartridge undergoes dimensional verification, media integrity testing, and pressure‑drop validation before shipment.

• Outer diameter and length measured with calibrated micrometers (±0.05 mm).
• Pleat uniformity inspected via optical scanner; deviation <2 % accepted.
• Burst strength test: minimum 0.5 bar over‑pressure without media tear.
• Pressure‑drop at nominal flow verified against ISO 5011; acceptance window ±10 % of target.

Documentation includes material certificates, test reports, and OEM part number traceability.

Frequently Asked Questions

Can dimensions be customized?

Yes. We produce cartridges to any outer diameter, length, and flange pattern supplied in the customer’s drawing or CAD file.

What information is required for a quotation?

Required data: desired outer diameter and length, end‑cap type, media preference (or dust characteristics), cleaning method, and any special certifications (e.g., FDA, ATEX).

How is quality inspected?

Each lot undergoes dimensional checks, media integrity, burst strength, and pressure‑drop testing as outlined in our QC procedure.

What packaging options are available?

Cartridges are packed in corrugated cartons with internal dividers, palletized for export, or supplied in reusable returnable containers upon request.

What is the typical production lead time?

Standard catalog items ship within 3‑4 weeks; custom‑tool projects require 6‑8 weeks after drawing approval.

Contact Us

For technical inquiries, quotation requests, or to discuss a custom cartridge solution for your silo dust collector, please reach out.