What is a Depth Filter Cartridge?
The depth filter cartridge utilizes micron-sized fibers to form a full path of filtration from the surface to the inside, with a “gradient pore size” intelligent filtration unit. The depth retention mechanism extends the life of a single cartridge, eliminating the need for frequent replacements in the production line, and directly increasing production yield by 15%. Optimized fiber bonding technology ensures no leakage under ultra-high differential pressure, bringing you more robust fluid safety. Simplified filtration system, no need to configure redundant multi-stage filtration tanks, a significant reduction in pumping energy consumption, to protect your power system from premature destruction due to high-pressure loads, and extend the service life of the equipment by more than 20%. The high retention accuracy brings you perfect protection for downstream precision components (e.g. ultrafiltration membranes, nozzles) and reduces the replacement cost of downstream equipment by 30%. Even under severe conditions, the deep filter cartridge provides you with an extremely high throughput per pass, ensuring that your production rate is not disturbed by fluctuations in fluid impurities and that your output efficiency is increased by about 10%.
Why Choose FiltEdge Depth Filter Cartridges?
Unique multi-layer gradient density structure for smarter cost control, 35% higher effective dirt-holding capacity, high porosity due to hot-melt spinneret process, 15% lower initial pressure than industry average, no need to run at full capacity to achieve the intended flow rate, system pressure control and longer pump life, guarding the lifeblood of the filtration process, FiltEdge insists on using 100% pure polypropylene, USP Class VI, with no added binders or surfactants to ensure zero fiber shedding, and up to 99% absolute accuracy to give you an end yield of 5% or more. Industry-leading modular manufacturing provides 100% compatibility with custom specifications for different brands of filter housings.
Depth Filter Cartridges Series
Depth filter cartridge series include Pp melt blown series, String wound series, High flow depth series, Resin bonded series.
High flow pre-filtration design with multi-layer gradient density structure, used in RO reverse osmosis system pretreatment, industrial water treatment and general chemical filtration, with 30% higher dirt holding capacity.
Continuous long fiber cross-winding technology, specializing in high solids content fluids, oil field water injection, municipal water supply and high viscosity coating industry, very high dust holding capacity can save you 20% of the purchase of filter elements.
Long acrylic fiber and phenolic resin are cured at high temperature, with strong structural rigidity. For 15,000 SSU or more of high-viscosity fluids, inks, resins, and high-temperature acid and alkali filtration, effectively saving 25% of raw material waste costs.
Key Features of Depth Filter Cartridges
FiltEdge depth filter has excellent chemical compatibility, superior structural stability, extremely high dirt-holding capacity and long life, and low-pressure drop operation.
FiltEdge is naturally chemically inert, regardless of strong acids, bases, alcohols or organic solvents, FiltEdge can maintain stable physical and chemical properties, can withstand pH1-14 fluids, and will not release any extracts that may affect the quality of the fluid.
FiltEdge Depth Filter Cartridge adopts an outer protective structure, and precise heat stabilization treatment ensures that the bonding points between microfibers are extremely strong, and the retention efficiency of FiltEdge Cartridge fluctuates less than 0.5% under a continuous pressure difference of 0.3 MPa (43.5 PSID), and the structural displacement is close to zero.
Optimized fiber stack density, with higher effective void volume, internal locking of a large number of solid impurities, colloids and soft particles.
At standard flow rates, the FiltEdge Initial ΔP is 15% – 20% lower than the competition, resulting in a smoother pressure rise over the life of the cartridge.
FiltEdge Coreless Self-Supporting Technology
When traditional cartridges are pressurized, the fibers are pressed against the inner core, resulting in a smaller pore size or even blockage. Inherent structural rigidity to bring true deep filtration, coreless self-supporting process through a simple stack of fibers, loose structure, must rely on the center of the skeleton to prevent deformation under pressure, high temperature thermal gradient self-adhesive technology in the instant of fusion spraying, ultra-fine fibers in the semi-molten state of high-speed spraying, through the precise frequency of the winding, so that the fibers at the intersection of the molecular level of “fusion. “Fusion. Experiments have shown that during the pressure surge from 0.05 MPa to 0.25 MPa, the downstream particle escape rate of the FiltEdge cartridge is close to 0%, while the penetration rate of ordinary cartridges tends to surge by 15%. With the plastic core removed, the cartridge is 100% composed of high-performance polypropylene, a process that creates a sophisticated and robust three-dimensional spatial truss structure inside the cartridge. The self-supporting structure maintains a porosity of 85-90%, resulting in a shorter, barrier-free path for fluid flow, no pore size compression at 0.3 MPa differential pressure, a 15% increase in filtration throughput efficiency, and the elimination of secondary contamination due to leaching of the core material.
FiltEdge OEM Value Added Branding and Customized Services
FiltEdge can review cartridge dimensions, end-cap styles, private labeling and packaging requirements against your equipment and brand specifications. Confirm compatibility through the approved drawing before ordering. Available material documentation and any third-party testing must be agreed for the selected product and market; certification or cost savings are not guaranteed.
Modified polypropylene or stainless-steel center-support options require application-specific review. The stated 5 micron rating and 4.5 bar differential-pressure condition require confirmation for the selected construction.
Why Choose FiltEdge as Your Depth Filter Supplier?
FiltEdge LLC is a U.S. company established in 2025, supported by SFFILTECH in China, established in 2006. Manufacturing support is provided through SFFILTECH in China. Confirm product specifications, available quality documents, pricing and delivery in the quotation. Certificates must be checked for the relevant entity, facility and product. Support is arranged during business hours; any on-site service or warranty terms require separate agreement.
Applications Of FiltEdge Depth Filter Cartridges
FiltEdge depth filter cartridges can be used in RO pre-filtration, fine chemical and clarification industries as well as plating and surface treatment industries.
For food and beverage applications, confirm applicable food-contact documentation, the selected cartridge rating and validation requirements. Particle retention and production-line performance depend on the selected construction and operating conditions.
With strong corrosion and clogging resistance, the large effective filtration area can continuously adsorb anode sludge and decomposition products during the plating process.
Technical Specification
- Technical Specification
| Materials | 100%PP |
| Max operating temp | 80℃（176℉） |
| Outer diameter | 63mm/69mm/115mm (high flow) |
| Micron rating | 1,5,10 micron |
| lengths | 10”, 20”,30”,40”,60” |
| Chemical compatibility | pH 1-14 |
Testimonials
Previously plagued by high-priced OEM contracts, we didn’t hesitate to switch to FiltEdge, which offered equal or better filtration at a more competitive price, and found that we were able to reduce replacement frequency by 25% and consumable expenditures by 40% right away. The longer life has saved us over $20,000 per year in labor and consumable costs, truly delivering on the promise of ‘lower cost, higher output.
Michael ROperations Manager | Global Water Solutions, IncMembrane contamination in desalination is the biggest headache, always looking for a cartridge with a high turbidity feed and no bypass leakage, FiltEdge has been very satisfactory, the life of the RO membranes is a doubled longer after use.
Sarah JPrincipal Process Engineer | Advanced Desalination PlantOur high-precision chemical coating line is perfectly compatible with all of our canisters using FiltEdge depth filtration cartridges, with no modifications required and a 5% increase in end-cap yields.
David LDirector of Quality Assurance | Precision Chemical Manufacturing
Absolutely. FiltEdge cartridges are 100% compatible with all major brands of canisters using globally standardized specifications (such as DOE double or 222/226 ports), with the same flow rate as the original, and our gradient density technology provides even longer life.
The specified polypropylene hot-melt construction does not use chemical adhesives, resins or surfactants. Confirm the materials and any applicable food-contact documentation for the selected cartridge. Fiber shedding and extractables require application-specific assessment; zero release is not guaranteed.
Replacement is scientifically based on pressure differential and is typically recommended when the differential pressure reaches 0.2 MPa (30 PSID). Although FiltEdge cartridges are constructed to withstand up to 0.45 MPa, the cartridge is nearing saturation at this point. Benefits: Timely replacement gives you downstream process stability and prevents pump energy spikes due to excessive differential pressure, saving you 10% on system operating costs.
