The Custom Paper Hydraulic Oil Filter Element 144×400 is a high‑performance, cost‑effective pleated filtration cartridge engineered for the removal of solid particulates, mechanical impurities, and wear debris from hydraulic and lubrication systems.
Paper hydraulic oil filter elements are designed to remove solid particles and impurities from hydraulic fluid, protecting pumps, valves, actuators, and other critical components from abrasive wear. The filter element is constructed from high‑quality resin‑impregnated cellulose filter paper—a traditional, economical filter media made from wood pulp plant fibers that are pleated to maximize effective filtration area within the compact envelope.
| Type | Hydraulic Oil Filter Element |
| OD | 144 mm |
| Height | 400 mm |
| Filter material | Filter Paper |
| Support Core | Carbon Steel Perforated Plate |
| Working temperature | -20~+110℃ |
| End caps | Carbon steel |
| Custom made | Available |
This is the specification of the customized hydraulic oil filter element. If you are in need of custom oil filter, please contact us for a quote.
Every paper hydraulic oil filter element Huahang Filter produces undergoes meticulous quality control, from raw material selection to finished product shipment. While the paper core may seem simple, every detail—from paper type and resin content to fold uniformity and glue oil resistance—affects its performance. This experience is the culmination of over twenty years of dedicated effort.
Our workshop is equipped with automated paper folding machines, end cap assembly lines, and testing equipment to ensure consistent quality across every batch. Most of our workers have many years of experience here, familiar with every stage of production. We believe that good products stem from a dedicated attitude and solid craftsmanship.

| Feature | Paper (This Product) | Glass Fiber | Metal Mesh |
|---|---|---|---|
| Filtration Precision | 10‑40 μm (medium) | 1‑10 μm (high) | >40 μm (coarse) |
| Filtration Mechanism | Depth filtration | Depth filtration | Surface filtration |
| Dirt‑Holding Capacity | Moderate | High | Low |
| Reusability | Disposable | Disposable | Cleanable |
| Cost | Low | High | Moderate |
| Temperature Resistance | Up to 100°C | Up to 120°C | Up to 480°C |
| Typical Applications | General hydraulics, return line | Servo systems, precision filtration | Suction strainers, coarse pre‑filtration |
At Huahang Filter, we offer robust customization services to tailor the TR-20230 filter element to your specific needs.
Custom Filtration Ratings: Available from 1μm to 100μm to match your exact particle removal requirements
Custom Seal Materials: NBR, Viton, EPDM, or PTFE-encapsulated options
Custom End Caps: Carbon steel, stainless steel, aluminum, or reinforced nylon configurations
Custom Dimensions: Alternative lengths and diameters to fit unique housings
Special Media Options: Glass fiber blends for higher efficiency or wire mesh for cleanable applications
Custom Packaging: Bulk packaging or individual boxes with branding and instructions

Q1: Can I clean and reuse a paper hydraulic filter element?
A: No. Unlike stainless steel or wire mesh elements, paper filter media is designed for single use only. Cleaning (e.g., blowing with compressed air or washing) will damage the cellulose fibers, create irregular pores, and significantly reduce filtration efficiency. Please replace with a new paper element.
Q2: What is the difference between nominal and absolute micron rating for paper filter elements?
A: Nominal micron rating indicates the approximate particle size that the filter can retain at 50–60% efficiency – it is a less strict standard. Absolute micron rating specifies the particle size at which the filter achieves 99.5% efficiency . For critical hydraulic systems (servo valves, proportional valves), always request the absolute rating.
Q3: How do I select the correct filtration rating for my system?
A3: The optimal rating depends on system sensitivity and manufacturer specifications.
For standard industrial hydraulic systems, 10‑25 μm is common.
For more sensitive components (servo valves, proportional valves), finer ratings (3‑10 μm) may be required – though glass fibre media is typically recommended for these applications.