Liugong SP200172 Oil Filter: The "Blood Purifier" for Construction Machinery Engines

1. Multi-layer gradient filter material achieves micron-level impurity interception.

Small impurities in engine oil (such as those with diameters ≥2μm Metal debris and carbon particles are what cause component wear. “ The Invisible Killer ” , LiuGong SP200172 The oil filter uses “ Pre-filter coarse layer +  High-precision fiberglass layer +  Supporting Protective Layer ”  A three-layer gradient composite filter structure builds a comprehensive filtration system: the pre-stage coarse filter layer is made of high-density polyester fiber, initially trapping particles with diameters as small as ≥10μm Large-particle impurities are removed to reduce the load on subsequent filter layers; the intermediate high-precision fiberglass layer uses imported ultra-fine glass fibers, achieving a filtration accuracy of 2μm , the filtration efficiency for minute impurities ≥99.5% , it can precisely capture metal debris generated by wear in the engine oil, as well as carbon deposits formed during combustion, preventing them from being carried back into the oil circulation and potentially scratching the cylinder walls or wearing down the bearings. The outer supporting protective layer is made of high-strength nylon mesh, significantly enhancing the filter material's overall compression resistance—capable of withstanding oil pressures up to 8MPa ), preventing the filter material from deforming or cracking under the impact of high-pressure oil, thus ensuring long-term stability of filtration performance. Testing has shown that after using this filter element, the engine oil contains 2μm The above impurity residues have been reduced. 90% , the wear rate of piston rings and crankshaft bearings decreases 40% , significantly extending the engine overhaul cycle.

II. High dust-holding and anti-clogging design, extending maintenance intervals

In construction machinery engines operating under heavy loads and high-temperature conditions, the amount of oil contamination generated is significantly higher than in ordinary passenger vehicles. If the filter element's dust-holding capacity is insufficient, it can easily become clogged frequently, leading to reduced oil flow and, consequently, inadequate lubrication of critical components. LiuGong SP200172 The oil filter element is specifically optimized for dust-holding performance: the filter material boasts a deployed surface area that reaches 1.2 ㎡, which is the standard size for a conventional oil filter element 1.6  Twice, with dust-holding capacity as high as 25g , capable of accommodating more impurities without affecting oil flow; meanwhile, the filter material surface is treated to resist fouling, making it harder for contaminants to adhere and clog the filter pores, ensuring that oil flow resistance remains consistently controlled at 0.15 MPa The following (industry standards) ≤0.2 MPa ), ensuring that engine oil is delivered to each lubrication point at a steady flow rate. Depending on the operating environment, this filter element can maintain its normal service life up to 500–800 Hours—extended compared to standard industry oil filters 30% Above, reduce the frequency of downtime and replacements. —— Daily average operation of loaders 8  Hourly calculations can be reduced 1-2 Next time /  The number of maintenance sessions per year saves users time and reduces costs.

3. High-strength structure and sealing, designed to withstand extreme operating conditions.

Construction machinery often operates in challenging environments characterized by high temperatures, vibration, and oil contamination, where the structural strength and sealing performance of the oil filter element directly affect the filtration efficiency. Liugong SP200172 The oil filter element undergoes rigorous layered checks in its structural design: the filter housing is made from reinforced stamped steel sheets. Q235 + Electrophoretic rust-prevention treatment), with a thickness of up to 1.5mm , with impact resistance reaching 20 kJ/m² , it can withstand collision impacts during equipment jolting, preventing shell deformation and oil leakage; the bonding area between the filter material and the housing is sealed with high-temperature epoxy adhesive, achieving a sealing strength that reaches 600N , and can - 30℃ To 150℃ Maintaining sealing performance under extreme temperature conditions to prevent unfiltered oil from leaking. “ Bypass ”  Enter the lubrication system; additionally, the filter cartridge interface features a standardized threaded design (compatible with M20×1.5 、 M22×1.5 Including mainstream specifications, paired with nitrile rubber sealing rings, it ensures reliable sealing after installation—and remains resistant to aging and leakage even when immersed in high-temperature engine oil—thus guaranteeing that the filtration performance is never compromised.

4. Efficient filter paper regeneration, suitable for long-lasting oil use

As for long-life motor oils (such as 1000 The widespread adoption of short-interval oil changes for engine oils in construction machinery requires oil filter elements to have enhanced filter paper regeneration capabilities, preventing premature clogging of the filter material. LiuGong SP200172 The high-precision fiberglass layer of the oil filter element utilizes “ Elastic Fiber Structure ”  When oil pressure fluctuates, the filter material can slightly deform, allowing some of the tiny impurities adhering to the surface to be captured. “ Shake off ”  To the sediment chamber at the bottom of the filter element, achieving temporary filtration material “ Regeneration ” , extending the effective filtration time; meanwhile, a dedicated sedimentation chamber is installed at the bottom of the filter element, capable of collecting metal debris (such as iron filings) that cannot be intercepted by the filter material, thereby reducing the risk of these particles re-entering the oil circulation system. This design significantly enhances the compatibility between the filter element and long-life engine oil, ensuring a perfect match with LiuGong's recommended 1000  High-performance, long-life motor oil further reduces the overall maintenance costs associated with oil and filter changes.

5. Compatible with All Models, Supporting Multiple Engine Brands

Leveraging LiuGong's deep understanding of construction machinery engines, SP200172 The oil filter element features a standardized interface and dimension design, ensuring seamless compatibility with the entire lineup of LiuGong loaders. 5-12 Ton-class), excavator ( 13-30 A ton-class engine, also compatible with mainstream-brand construction machinery engines such as Yuchai, Weichai, Cummins, and Perkins. The filter element installation dimensions strictly adhere to ISO International standards, with interface thread precision reaching 6H Level, the tolerance error in fitting with the sealing surface of the engine oil filter housing ≤0.02mm No engine oil line modification is required—simply install it directly. Additionally, the filter element features clear markings indicating compatible models, filtration accuracy, and replacement intervals, making it easy for users to quickly identify and select the right product. Whether installing on a new machine or replacing in an existing one, this solution ensures seamless compatibility, providing a unified oil purification solution for various types of equipment.

6. Full-process quality control verification to ensure reliable performance

Liugong vs. SP200172 Oil filter implementation “ From raw materials to finished products ”  Lifecycle Quality Control: During the raw materials stage, we conduct oil resistance tests, mechanical property evaluations, and high- and low-temperature aging tests on filter media, housings, and sealing rings to ensure the base materials meet specifications. In the production process, each filter cartridge must pass an airtightness test (leakage rate < 0.1%). ≤0.1 L/min )、Flow testing (pressure loss at rated flow rate ≤0.1 MPa )、Burst Pressure Test (Pressure Resistance) ≥12MPa ), ensuring that the filtration performance and structural strength meet the standards; before the finished products leave the factory, filter cartridges are randomly selected for 1000  Hour-long oil circulation simulation test, extreme temperature shock test -40℃ To 150℃ Cycling tests are conducted to verify reliability under extreme operating conditions. Meanwhile, LiuGong has established a comprehensive quality traceability system, enabling users to check production batches, inspection data, and after-sales records simply by scanning the filter cartridge’s unique code—ensuring all-around protection of their usage rights.

Liugong SP200172 The engine oil filter, centered on high-precision filtration, superior dust-holding capacity and durability, and strong environmental adaptability, has become essential for construction machinery engines. “ Blood Purifier ” Choosing it means not only selecting a high-quality filter element, but also opting for long-lasting engine protection and ensuring stable equipment operation—helping your construction machinery stay free from impurity-related wear and tear in diverse and challenging environments such as mining, infrastructure projects, and road construction, while consistently delivering robust power and maximizing your project’s value.