Mini-Grooved Melt Blown Filter Cartridge

With 99% filtration accuracy and a micro-grooved surface that increases the effective filtration area, this cartridge delivers consistent and precise particle removal for applications where filtration stability is critical. The polypropylene fibers are fused and intertwined during the melt-blowing process without the use of chemicals or glue, ensuring no contamination risk to the filtered liquid. The refined surface finish also gives the cartridge a cleaner, more uniform appearance — a practical advantage in pharmaceutical and electronics environments where visual inspection of filter condition is part of routine maintenance. Pullner offers this cartridge alongside four other surface types in their melt blown filter cartridge lineup.

Applications

The mini-grooved cartridge’s 99% accuracy and stable filtration performance make it well suited for precision-critical applications:

Electronics: Pre-filtration of pure water and ultra-pure water for semiconductor and display manufacturing
Pharmaceutical: Pre-filtration of injections, liquid medicines, large infusions, and antibiotics
Food & Beverage: Filtration of drinking water, alcohol, and beverages where consistent quality is required
Water Treatment: RO membrane pre-filtration, industrial process water, municipal water
Petroleum & Chemical: Organic solvents, acids, alkalis, oilfield water injection

Product Features

99% stable filtration accuracy across the rated micron range
Micro-grooved surface increases effective filtration area
Fused and intertwined polypropylene fiber — no chemicals or glue used
Refined surface finish with uniform, clean appearance
Three-layer gradient density structure for depth filtration
FDA compliant material
All common end cap configurations and adaptor types available
Free samples available (customer pays shipping via DHL, UPS, or FedEx)

Technical Specifications

Specification	Details
Filter Medium	Polypropylene (PP)
Core Material	Polypropylene (PP), Nylon, Fiberglass Reinforced PP
End Caps	Thermal welded PP or Nylon
Seal / Gasket	Silicone, EPDM, BUNA-N, Viton
Filtration Ratings	1µm, 3µm, 5µm, 10µm, 20µm, 30µm, 60µm
Filtration Accuracy	99%
Outer Diameter	63 mm (custom sizes available)
Inner Diameter	30 mm (custom sizes available)
Lengths Available	10″ (254 mm), 20″ (508 mm), 30″ (762 mm), 40″ (1016 mm)
Max Operating Temperature	80°C
Max Differential Pressure	0.4 MPa at 21°C
Recommended Change-out ΔP	0.2 – 0.4 MPa
Certifications	FDA compliant, ISO 9001
Production Process	Polymer extrusion → Spinning → Shaping → Cooling → Winding → Cutting