Oil contamination is the top cause of hydraulic and lubrication system failures—costing industries billions annually in downtime and repairs. Metal wear particles, dust, and water can scratch precision components, clog passages, and degrade oil performance. As a listed filtration expert (Stock Code: 837936), LEFILTER’s Alternative Oil Filter Cartridge solves this issue: engineered as a high-performance, cost-effective alternative to OEM filters, it meets ISO 4548 and SAE J1839 standards, delivering 99.9% particle retention while cutting maintenance costs by 30–40%.
Outer Pre-Filter Layer: 50–100μm spun-bonded PP or 304 stainless steel mesh traps large debris (rust, tank sediment), preventing media clogging and extending service life by 25%.
Middle Core Layer: Borosilicate glass fiber (1–5μm precision, 99.9% retention) or resin-impregnated cellulose (10–50μm, high dirt-holding capacity). Cellulose models include a hydrophobic coating to repel water (a key oil oxidant).
Inner Support Layer: Polyester non-woven fabric + 304 stainless steel core resists collapse under 350 bar pressure, minimizing pressure drop (≤0.2MPa) for stable system flow.
Housing/End Caps: Electrostatically coated steel (corrosion-resistant) or food-grade PP (for F&B use). End caps bond to housing via heat-cured epoxy for 0% leakage.
Dual-Seal Design: NBR O-rings (standard oils) or FKM O-rings (high temp/chemicals) + polyurethane foam gasket prevent bypass—tested to hold pressure with no drop >0.01MPa in 30 minutes.
Tailor to your system: non-standard sizes (length, diameter), water-absorbing media (for marine use), or food-grade materials (NSF H1 compliant)—delivered in 5–7 days.
| Parameter | Standard Details | Custom Options |
|---|
| Filtration Precision | 1μm, 3μm, 5μm, 10μm, 20μm, 50μm, 100μm | 0.5μm (ultra-precision) |
| Operating Pressure | ≤350 bar (static), ≤250 bar (dynamic) | ≤400 bar (reinforced steel housing) |
| Temp Range | -40℃~120℃ (NBR); -20℃~150℃ (FKM) | -50℃~180℃ (silicone seals + ceramic media) |
| Media Material | Glass fiber, cellulose, stainless steel | Water-absorbing polymer, low-resistance media |
| Flow Rate | 10–50 L/min (10-inch); 30–150 L/min (30-inch) | Up to 200 L/min (large-diameter models) |
| Dirt-Holding Capacity | 50–80g (10-inch); 180–250g (30-inch) | Up to 300g (high-capacity models) |
| Compatibility | Mineral/synthetic oils, biodegradable oils | Aviation turbine oil, food-grade lubricants |
Mechanical Interception: Outer mesh blocks large particles (50–100μm) to protect inner media.
Inertial Impaction: Glass fiber traps 1–10μm particles—high-mass contaminants collide with fibers instead of following oil flow.
Diffusion: Sub-micron particles (<1μm) stick to fibers via Brownian motion, critical for motor bearings.
Water Adsorption: Hydrophobic coating on cellulose models repels water, keeping oil dry and preventing oxidation.
Case: Shanghai automotive plant replaced OEM 5μm filters with LEFILTER’s model.
Result: Service life doubled (8 weeks), valve clogging eliminated, maintenance costs cut by 60%.
Case: Henan coal mine used 20μm cellulose cartridges for conveyor gearboxes.
Result: Oil contamination dropped from ISO 22/19 to 16/13, overhaul intervals extended to 12 months (saving ¥600k/year).
Case: Guangdong gas power plant switched to 1μm glass fiber cartridges.
Result: Cost per cartridge reduced by 47%, service life extended to 6 weeks.
Case: Singapore ship used FKM-sealed cartridges for anchor winches.
Result: Seal life tripled (9 months), water contamination <0.1%, oil changes halved.
A1: Yes—we match OEM dimensions (ISO 3724). If not, we replace it for free. Custom sizes available for non-standard housings.
A2: Our 1–5μm models achieve 99.9% retention (ISO 16889), equal or higher than most OEM filters (95–99%). Test reports provided with every order.
A3: Replace at 0.2MPa pressure drop, or via oil analysis (e.g., NAS 6 for turbines). Typically 4–12 weeks, depending on contamination.
A4: No—cleaning damages media and risks recontamination. Our low cost (30–40% less than OEM) makes replacement more cost-effective.
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