| Hydraulic Filter KRJ10590 335G0386 335/G0386 SH60241 P583714 HY90296 Parameter: | |
| Part Number | KRJ10590 335G0386 335/G0386 SH60241 P583714 HY90296 |
| Brand | Tamfiney |
| Weight | 900 g |
| Height | 188/193 mm |
| Outer Diameter | 150 mm |
| Inner Diameter | 90*M10x1.5 mm |
| Material | Metal & Strainless Steel |
| Filter Media | Strainless Steel cloth with Strainless steel blend |
| Typical Working Pressure | Up to approx. 6–10 bar |
| Filtration | Approx. 5–10 micron |
| Temperature Rating | Up to approx. 100–120°C |
| Minimum Order | 50 PCS |
| Place of Region: | Zhejiang, China |
| Payment Terms: | T/T |
| Price Terms: | FOB |
| Lead Time: | 30 to 50 days based on order quantities |
| Market Type: | After Market |
| Current Export Market: | Southeast Asian,North America, South America, Western Europe, Eastern Europe, Africa, Oceania |
Applications:
- Sumitomo Excavators: SH210-5, SH300-2, SH330-3, SH350, SH400-2, SH450LHD
- Hidromek: HMK140-W3, HMK200-W3
- Lovol Foton Group: FR210, FR220, FR230, FR330, FR360, etc.
- Takeuchi: TB285, TB290, TB295W
- Hitachi: SCX2500
Premium KRJ10590 Hydraulic Filter 335G0386 335/G0386 SH60241 P583714 HY90296
Q: How to choose a hydraulic filter?
The core of selecting hydraulic filters for construction machinery equipment is as follows:
📍 Select the corresponding filter type according to the installation location
The hydraulic circuits of different construction machinery have clear division of labor, and corresponding types of filters need to be selected accordingly:
- Suction Filter: Select a low resistance and high flux coarse filter with an accuracy of 100-180 μm to avoid cavitation of the pump, suitable for the main pump inlet scene of excavators and loaders.
- Pressure Filter: Select a high-pressure high-precision filter with an accuracy of 10-25 μm and a pressure resistance of ≥ 1.5 times the maximum system pressure, adapt to the high-pressure circuit of cranes and shield machines.
- Return Filter: Select a medium precision filter with high flow rate and strong pollutant holding capacity. With an accuracy of about 10 μm, to intercept metal debris, and adapt to the oil tank return line of excavators and pump trucks.
- Extreme impact conditions: such as hydraulic breaker matching pipelines, choose reinforced filters with bypass valves and high pressure impact resistance to avoid pressure fluctuations from penetrating the filter element.
⚙️ Key points for matching core performance parameters
- Filtering accuracy: For low-pressure systems (≤ 2.5MPa), a 100 μm suction filter is selected. For medium and high-pressure systems (7-21MPa), a 10-25 μm oil pressure filter is selected. For high-end models with servo/proportional valves, a 3-5 μm high-precision filter element is selected, and a β value of ≥ 200 is required to ensure interception efficiency.
- Flow rate and pressure difference: The rated flow rate is selected based on 1.2~1.5 times the peak flow rate of the system. The initial pressure difference is controlled within 0.02 MPa, and the saturation alarm pressure difference is set to 0.35 MPa, to avoid excessive return oil back pressure affecting the action response.
- Pollutant carrying capacity: Due to the high amount of dust in the working conditions of construction machinery, the filter is required to have a pollutant carrying capacity of ≥ 150g, which extends the replacement cycle and reduces the maintenance frequency of field operations.
- Structural strength: The filter element is made of fiberglass composite filter material with a metal reinforced skeleton. It has passed ISO 2941 anti rupture test and ISO 3724 100000 pressure fatigue test, and is suitable for working environments with high-frequency vibration and pressure impact of equipment.
Q: What is the purpose of a suction filter?
Suction filter serves as the first line of defense in the hydraulic system, primarily designed to intercept large particle contaminants at the source, thereby protecting the hydraulic pump and subsequent critical components while ensuring stable system operation.
🛡️ Core Protective Function
- Intercept large particulate contaminants: Effectively filter out hard impurities such as welding slag, rust, metal wear debris, rubber fragments, and dust from the oil tank, preventing these particles from entering the hydraulic pump directly. This avoids issues like inner wall damage, distributor plate wear, and blade jamming, significantly reducing oil pump failure rates and extending their service life.
- Protect downstream hydraulic components: Prevent impurities from entering control valves, hydraulic cylinders, and other parts to avoid issues such as valve core jamming, seal damage, and cylinder wall scratches, ensuring stable and reliable system response.
⚙️ System Operation Support Function
- Maintaining the basic cleanliness of the oil: As the primary filtration stage, it reduces the filtration burden on subsequent pressure pipeline fine filters, alleviates the dirt-holding pressure on downstream filter elements, and extends the service life of the entire hydraulic filter system.
- Preventing Cavitation and Suction Air Ingress: Featuring a high-flow, low-resistance exclusive design, it avoids excessive pressure drop under the oil pump's negative pressure suction condition, ensuring smooth oil flow and preventing issues such as insufficient oil suction, cavitation, and increased system noise.
- Reduce overall maintenance costs: Minimize component damage and downtime repairs caused by oil contamination while slowing the oxidation and degradation of hydraulic oil, extending oil replacement intervals, and significantly lowering equipment maintenance expenses in the long term.
