Products Description
Replace Hydraulic Oil Filter Element Cartridge Filter.Hydraulic oil filters serve as the critical component within hydraulic systems, engineered to eliminate solid particulates, gummy substances, and diverse contaminants from the fluid. Functioning through specialized porous media-such as fiberglass, filter paper, or metal mesh-these filters intercept harmful agents including dust, metal shavings, and oxides. This process safeguards precision components like hydraulic pumps, control valves, and cylinders from ingress of debris, thereby preventing mechanical wear, valve sticking, and line blockages. Ultimately, this ensures the system maintains optimal cleanliness, operational efficiency, and a prolonged service life.Replace Hydraulic Oil Filter Element Cartridge Filter.
Hydraulic oil filters can be categorized based on multiple dimensions, including their installation location, filter media, and structural design. Different types of filters undertake distinct filtration tasks within the hydraulic system.
Classification by Installation Location and Function
This is the most common classification method. Based on the specific installation position within the hydraulic system, the function and performance requirements of the filters vary significantly.

1.Suction Filters (Suction Strainers)
2.High-Pressure Line Filters (Pressure Filters)
3.Return Line Filters
4.Circulation Filters (Bypass Filters / Kidney Loop Filters)
5.Air Breathers (Air Filters)
6.Pilot Filters
product feature
Various specifications can be customized according to customer requirements processing
Excellent High-Temperature Resistance
Capable of long-term stable operation above 600°C, suitable for molten media, hot gases, and steam sterilization without frequent replacement.
01
High Mechanical Strength and Impact Resistance
The integral sintered structure provides exceptional rigidity and pressure tolerance, withstanding pressure fluctuations and mechanical vibration without deformation or damage.
02
Strong Corrosion Resistance
Available in 316L, Hastelloy, or Titanium to resist most acids, alkalis, organic solvents, and corrosive gases – ideal for chemical and pharmaceutical applications.
03
Stable and Controllable Filtration Precision
Uniform pore distribution with accuracy ranging from 0.1 to 200μm. Stable efficiency with no media migration or shedding, ensuring consistent product quality.
04
product display
Can provide customers with tailor-made technical solutions




Xinxiang Jun Filters and Chemical Co.,Ltd.
Our address:Hongqi District, Xinxiang City, Henan
Phone Number:86-18738502673
E-mail:admin@junlvfilter.com
Product Parameter
| Filter Type | Media Material | Core Material | End Cap Material | Core Selection Logic |
| Suction Filter | Wire Mesh | Perforated Metal Sheet | Plastic / Aluminum | Washable, low resistance, cost-effective |
| High-Pressure Line Filter | Glass Fiber | High-Strength Stainless Steel | Carbon Steel / Stainless Steel | High-pressure resistance, high precision, high strength |
| Return Line Filter | Glass Fiber / Cellulose Paper | Carbon Steel / Stainless Steel | Carbon Steel / Rubber | Cost-performance, pulse resistance, easy maintenance |
| Circulation Filter | Multi-layer Composite Glass Fiber | Stainless Steel | Stainless Steel / Engineering Plastic | High dirt-holding capacity, long service life, high reliability |
| Air Breather | Non-woven Fabric / Wire Mesh | Plastic / Aluminum | Plastic / Metal | Air permeability, dust protection, lightweight |
| Pilot Filter | Glass Fiber / Stainless Steel Mesh | Galvanized / Stainless Steel Sheet | Carbon Steel / Engineering Plastic | High precision, high dirt-holding capacity, low flow resistance |
company introduction

Xinxiang Jun Filters and Chemical Co.,Ltd.
Xinxiang Jun Filters and Chemical Co.,Ltd.is a professional manufacturer engaged in the design and production of filters,filtration equipment, purification devices, and oil-water separation devices.The company has gathered a large number of professional, senior engineers and other technological elites, specializing in design research and development manufacturing.
The R&D team is strong, with a high level of professional technology and rich practical experience. The company has advanced production equipment and a complete quality and safety assurance system.
Our address:Hongqi District, Xinxiang City, Henan
Phone Number:86-18738502673
E-mail:admin@junlvfilter.com
Packaging and certificates


FAQ
Q: How to select the correct filtration rating?
A: It depends on the smallest clearances of critical system components. General guideline: 3–5 μm for servo valve systems, 10 μm for proportional valve systems, and 10–20 μm for general industrial systems. Overly high rating increases pressure drop, while too low rating fails to protect components.
Q: What are the risks of continuing to operate after the differential pressure alarm triggers?
A: The bypass valve opens, allowing unfiltered oil to enter the system and accelerating pump/valve wear. The element may also collapse under excessive pressure, releasing debris into the oil circuit and causing severe equipment damage.
Q: Is new oil clean enough without pre-filtration?
A: New oil is not necessarily clean oil. Drum oil often contains particles introduced during transport and storage. It should be pre-filtered through a separate unit before filling; otherwise, it will quickly contaminate the new element.
Q: Why does the differential pressure remain high after replacement?
A: Possible causes include: excessively high oil viscosity due to low temperature, the housing vent valve not opened, seal misalignment causing internal bypass, or high free particle load in the system. Check each possibility in order.
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