Customized PTFE-Coated Filter Cartridges for CAPU-500 Dust Collectors

The customer was using air filter cartridges in a CAPU-500 dust collection system. However, the original filters had a relatively short service life and experienced a rapid increase in differential pressure during operation.

As filter resistance increased, airflow performance deteriorated and maintenance became more frequent. The equipment also operated in Malaysia, where high ambient humidity created additional challenges for filter performance and dust release.

The customer therefore required a replacement filter cartridge that would fit the existing equipment while improving filtration performance, pressure-drop behavior, and service life under the actual operating conditions.

PTFE Membrane-Laminated Polyester Media

The selected filter media combines a PTFE membrane with a polyester substrate. The membrane supports surface filtration, helping capture fine dust near the filter surface and facilitating dust release during compatible cleaning cycles.

The suitability of this media depends on dust properties, humidity, operating temperature, and cleaning conditions. These factors should be considered together when selecting a replacement cartridge.

The top threaded-rod connection was configured to match the customer's existing installation arrangement. Correct connection dimensions and sealing details are essential for secure installation and for minimizing the risk of unfiltered air bypassing the filter media.

The replacement cartridge was designed to address the customer's main operating concerns:

• Efficient fine-dust capture with PTFE membrane-laminated media.
• Surface filtration characteristics that support dust release during suitable cleaning cycles.
• Reinforced internal support to improve structural stability under differential pressure.
• Pleat design that considers airflow and effective filtration area.
• Equipment-compatible dimensions and connection details.
• Suitability assessment for humid operating environments.

The customized cartridge addressed the customer's requirements for equipment compatibility and filtration performance. The intended operational benefits included:

• More stable airflow through the dust collection system.
• Better management of differential pressure during operation.
• Improved dust-cleaning performance when matched with suitable cleaning conditions.
• Potentially longer filter replacement intervals.
• Reduced routine maintenance workload and associated costs.

Actual service life and pressure-drop improvement depend on dust concentration, particle characteristics, humidity, operating airflow, cleaning frequency, and maintenance practices. Performance should be assessed under the customer's actual operating conditions.

Replacing an industrial dust collector cartridge involves more than matching its outer dimensions. Filter media, pleat geometry, support structure, sealing, and cleaning compatibility all affect the final performance.

Huahang supports both replacement filters for existing equipment and customized filter cartridges developed from drawings, samples, photographs, or dimensional specifications. We can evaluate the required media, cartridge structure, and connection details to help customers identify a suitable replacement solution.

If you need a replacement cartridge for CAPU-500 or other dust collection equipment, contact Huahang with your existing filter dimensions, equipment model, operating conditions, and filtration requirements.

Huahang Filter — Customized Industrial Filtration Solutions for Your Equipment.