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Melt-blown Filter Cartridge Manufacturer

Melt-blown Filter Cartridge Manufacturer

  • Graded density depth filtration: coarser outside, denser inside — for maximum dirt-holding capacity.
  • 1 to 100 micron ratings across all three series — pre-filtration to fine particle removal.
  • Standard 10″, 20″, 30″, 40″ lengths with DOE and SOE end caps — fits your existing housing.

Take Control of Your Filtration Process

Our meltblown filter cartridges utilize hot meltblown technology to create a true “gradient density deep structure”: the outer fibers are loosely arranged, effectively trapping larger particles; while the fiber density gradually increases towards the core of the filter cartridge, trapping finer deposits as fluid flows through. Whether you are involved in reverse osmosis (RO) pre-filtration, industrial water treatment, solvent processing, or drinking water purification, you can find meltblown filter cartridges in our product range to meet your needs.

Our Products

DLCG Series — Antibacterial Melt Blown Filter Cartridge
DLCG Series — Antibacterial Melt Blown Filter Cartridge

DLCG antibacterial PP melt blown filter uses silver ion technology to inhibit bacterial growth while providing reliable sediment filtration for cleaner, safer drinking water. 

DLNL Series — Nylon Melt Blown Filter Cartridge
DLNL Series — Nylon Melt Blown Filter Cartridge

DLNL nylon melt blown filter cartridge is made from 100% Nylon 6 microfibers, offering high-temperature resistance up to 120°C, excellent chemical compatibility, and reliable filtration for demanding applications. 

DLPP Series — Melt Blown Filter Cartridge
DLPP Series — Melt Blown Filter Cartridge

DLPP PP melt blown filter cartridge provides efficient sediment filtration, high dirt-holding capacity, and reliable performance for water and industrial liquid filtration. 

Melt-blown Filter Cartridge Characteristics

Pressure
True Graded Density Depth Filtration

Coarser outer layers intercept large particles; denser inner core captures fine sediment — all in one pass.

Authentic and Reliable
Zero Adhesives, Zero Binders

100% thermal bonding — no glue migration, no surfactants, no secondary contamination risk for your fluid.

Customization
Material Matched to Your Temperature

PP for standard conditions up to 60°C; Nylon 6 for demanding processes up to 120°C.

Engineered for High Pressure
Low Differential Pressure Start-to-End

High dirt-loading capacity keeps pressure drop low longer — your pump works less, your filter lasts longer.

Structural Stability
Antibacterial Option for Safe Water

DLCG silver ion additive actively inhibits bacterial growth inside the filter for safer drinking water systems.

Multiple Mesh Sizes
Five Surface Finishes Available

Smooth, hair, orange peel, fine groove, cut groove — choose the surface that matches your flow and housing needs.

Customization Support
Standard Sizes, Universal Housing Fit

10″, 20″, 30″, 40″ lengths with DOE / SOE end caps — drop-in replacement for your existing filter housing.

International Certification
FDA & International Compliance Ready

Materials comply with FDA 21 CFR standards. Full certifications available for food, pharma, and water applications.

Lianda Meltblown Filter Technology

Melt-blown technology is a key process in the manufacture of filter cartridges—particularly those made of polypropylene. As a widely utilized traditional method, this technique produces microfiber filtration media by extruding a polymer melt through fine nozzles and drawing it into ultrafine fibers.

Compared to other depth filtration media, melt-blown technology offers several advantages: it creates a true gradient density structure that progresses from the outer to the inner layers, thereby enhancing dirt-holding capacity and extending service life. Its fibrous matrix is ​​formed using a thermal bonding process that requires no chemical binders, ensuring high purity while minimizing the risk of secondary contamination. This makes it particularly well-suited for applications that are cost-sensitive yet simultaneously demand reliable particle retention capabilities and low pressure drop.

Lida's meltblown filter technology
What is meltblown polypropylene?

Meltblown polypropylene is a fine-fiber nonwoven material produced through a meltblown extrusion process. The production process involves first melting the polypropylene resin and extruding it through a spinneret with fine nozzles.

What sizes are available?

Standard sizes usually include:

  • 5 inch
  • 10 inch
  • 20 inch
  • 30 inch
  • 40 inch

Custom sizes can also be manufactured.

Are OEM and custom services available?

Yes. OEM branding, customized dimensions, packaging, and filtration specifications are usually supported for bulk orders.

What is the difference between pleated and melt-blown filter?

Pleated filter cartridges generally last longer than melt-blown cartridges due to their higher dirt-holding capacity. The pleated design maximizes surface area, capturing more.

Tailor-made Filtration Solutions

Lianda Filter is the leading sintered wire mesh and metal filter elements manufacturer in China.
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