The STXX-100×50 replace Leemin oil filter element is a high-performance replacement filter cartridge designed specifically for Leemin return line oil filters. As part of the STXX series wire-wound filter line, this hydraulic filter cartridge is a critical consumable component used in hydraulic system return lines, where it continuously removes mechanical impurities, metal wear particles, rubber fragments, and other contaminants from hydraulic fluid before the oil returns to the reservoir.
The STXX-100×50 hydraulic filter cartridge is installed within duplex return line filter assemblies, which are typically mounted directly on top of, on the side of, or underneath the hydraulic reservoir for easy service access . Within the hydraulic circuit, the return line filter captures contaminants generated by system components including pumps, valves, cylinders, motors, and bearings, ensuring that only clean fluid re-enters the tank. This protects the hydraulic fluid from accelerated degradation and extends the service life of downstream components.
STXX-100×50 replace Leemin hydraulic oil filter elements are manufactured and tested according to international standards to ensure quality and reliability.
| Type | Replace Hydraulic Oil Filter Element |
| Part number | STXX-100×50 |
| Filter layer | Wire wrapping |
| Working pressure | 21~210 bar |
| Filtration rate | 50 micron |
| Working temperature | -30~+110℃ |
| Nominal flow rate | 1.0 Mpa |
| Maximum differential pressure | 21 Mpa |
There are part of the models related to the STXX-100×50 Replace Leemin Oil Filter Element. Feel free to contact us for a detailed quote.
| SFX-1300×10 | FBX-400×20 | TZX2-40×50W | SFBX-25×30 | SFBX-40×1 | SFBX-40×3 | SFBX-40×5 | SFBX-40×10 |
| SFBX-40×20 | SFBX-40×30 | SFBX-63×1 | SFBX-63×3 | SFBX-63×5 | SFBX-63×10 | SFBX-63×20 | SFBX-63×30 |
| SFBX-100×1 | SFBX-100×3 | SFBX-100×5 | SFBX-100×10 | SFBX-100×20 | SFBX-100×30 | SFBX-160×1 | SFBX-160×3 |
| SFBX-160×5 | SFBX-160×10 | SFBX-160×20 | SFBX-160×30 | SFBX-250×1 | SFBX-250×3 | SFBX-250×5 | SFBX-250×10 |
| SFBX-250×20 | SFBX-250×30 | SFBX-400×1 | SFBX-400×3 | SFBX-400×5 | SFBX-400×10 | SFBX-400×20 | SFBX-400×30 |
| SFBX-630×1 | SFBX-630×3 | SFBX-630×5 | SFBX-630×10 | SFBX-630×20 | SFBX-630×30 | SFBX-800×1 | SFBX-800×3 |
The STXX-100×50 hydraulic oil filter replacement element is engineered for use across a broad range of industrial sectors that depend on reliable hydraulic system operation with continuous uptime requirements:
Heavy Manufacturing and Steel Production – Hydraulic systems in rolling mills, continuous casting machinery, blast furnace operations, heavy plate processing lines, and steel handling equipment where return line filtration is essential for protecting servo valves and precision hydraulic components
Injection Molding and Plastics Processing – Hydraulic power units for injection molding machines, extrusion presses, blow molding equipment, and thermoset molding systems where hydraulic fluid cleanliness directly impacts product quality and cycle time consistency
Power Generation – Turbine lube oil systems in thermal and hydroelectric power plants, coal handling equipment hydraulics, and auxiliary system return line filtration
Mining and Mineral Processing – Mobile mining equipment hydraulics including excavators, haul trucks, drills, and shovels; stationary processing equipment such as crushers, conveyors, and grinding mill lubrication systems
Construction and Earthmoving Equipment – Crawler cranes, hydraulic excavators, wheel loaders, backhoes, skid-steer loaders, concrete pumps, and asphalt pavers where return line filtration is critical for protecting pumps, motors, and cylinders from wear caused by ingressed contaminants
Paper and Pulp Industry – Paper machine lubrication systems, pulp processing hydraulics, and wastewater treatment filtration banks
Marine and Shipbuilding – Marine hydraulic systems including steering gear, deck machinery, hatch covers, and crane hydraulics
Contact Huahang Filter today to discuss your specific requirements and request a quote!
Xinxiang City Huahang Filter Co., Ltd. is a professional ISO 9001 certified manufacturer specializing in the design, production, and sale of hydraulic filters, air filters, water filter cartridges, and liquid filtration systems. Established in 2003, the company operates from a modern production facility in Xinxiang City, Henan Province—one of China’s most prominent filtration industry clusters.
Our comprehensive product portfolio spans hydraulic oil filter elements, air intake filters, water purification cartridges, polymer filters, stainless steel filter elements, coalescer cartridges, separator cartridges, and complete filter housings in tubular, plate-type, pleated, and wrap-type configurations. Huahang Filter also supplies replacement elements compatible with major international brands including Leemin, PAL, HYDAC, ARGO, PARKER, MAHLE, and so on.
➤ ISO 9001 Certified Quality Management System: Huahang operates under a certified quality management system, with rigorous raw material inspection, in-process quality control, and 100% finished product testing before shipment.
➤ 20+ Years of Filtration Manufacturing Expertise: With over two decades of continuous operation in the filtration industry, Huahang has developed deep technical knowledge across hydraulic, lubrication, air, and liquid filtration applications.
➤ True Manufacturer Direct Pricing: As a factory-direct manufacturer rather than a trading intermediary, Huahang offers the SWCQ-A25×80 hydraulic filter replacement element at competitive factory-direct prices, eliminating unnecessary markups while maintaining exceptional quality standards.
➤ Dedicated Technical Support: Our engineering and application support team is available to assist with filter selection, cross-reference verification, installation guidance, and troubleshooting for the SWCQ-A25×80 hydraulic oil replacement element or any other filtration challenge you may encounter.
Q: How is this different from the OEM Leemin filter?
A: Huahang’s element is manufactured to meet or exceed the original Leemin specifications for filtration efficiency, dirt-holding capacity, pressure drop, and dimensional accuracy. The difference is price and availability. Huahang’s factory-direct pricing is significantly lower, and lead times are often shorter.
Q: What filtration efficiency can I expect?
A: The glass fiber media provides βₓ ≥ 100 for the specified micron rating, which means at least 99% of particles at or above the rated size are captured in a single pass through the element. Multi-pass testing per ISO 16889 confirms performance.
Q: Do you ship internationally?
A: Yes. Huahang ships worldwide via air freight, sea freight, and express couriers (DHL, FedEx, UPS). Delivery times vary by destination and quantity.
Q: How do I install the element correctly?
A: Installation steps: Shut down the hydraulic system and relieve all pressure. Remove the filter housing cover. Carefully remove the old element. Clean the housing interior. Install the new element with new seals if included. Reinstall the housing cover and tighten to the torque specified in your equipment manual. Restart the system and check for leaks.
