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HF28836 Heavy-Duty Hydraulic Pressure Filter Element
Premium Filtration Solution for JCB, Doosan, and Volvo Earthmoving Equipment
10-micron cellulose media ($\beta \ge 2$) ensures ultra-clean fluid in sensitive high-pressure circuits.
Exact replacement for Donaldson P550576, Mann HD 47 x, and HiFi SH 60719.
Built to withstand 20 bar pressure surges within a thermal range of -30°C to +100°C.
Broad compatibility across Doosan, JCB, Bobcat, Volvo, and Kubota systems.
Advanced Hydraulic Component Safeguarding
The HF28836 hydraulic element serves as a critical line of defense for sophisticated high-pressure lines. By leveraging advanced cellulose fiber technology, this element effectively captures microscopic debris, preventing the abrasive wear that leads to premature failure of hydraulic pumps, directional valves, and actuators. For fleet operators, standardizing on the HF28836 helps streamline maintenance inventory for JCB JS excavators, Doosan DX units, and Volvo EC heavy machinery alike.
Structural Integrity in Harsh Conditions
Constructed for high-intensity environments, the HF28836 features a robust core capable of withstanding 20 bar collapse pressure. The integration of high-performance Nitrile (Buna-N) seals ensures a reliable, leak-free interface, providing stability during both arctic cold-starts and high-temperature continuous operation.
Engineering Specifications
| Technical Parameter | Specification Value |
|---|---|
| Filter Category | Hydraulic Pressure Line Element |
| Dimensions (OD/ID/L) | 42.0 mm / 22.8 mm / 86.0 mm |
| Collapse Resistance | 20 bar |
| Media Composition | High-Efficiency Cellulose Fiber |
| Beta Ratio | $\beta \ge 2$ (10 Micron) |
| Thermal Range / Seal | -30°C to +100°C / Nitrile (Buna-N) |
Verified Compatibility & Fitment
OEM Cross Reference Directory
Fleetguard: HF28910 | Donaldson: P762921 | Inline: FH50270 | Daewoo：24719051 | Hitachi：4287634
Komatsu：706351383
SF FILTER: HY 9340/1 | HiFi Filter: SH 60101 | Sakura: H-2709 | Filfilter: ML 1358 A | Volvo：104100840
Fiat Hitachi：76580323
Technical FAQ
Q1: What specific system risks does the HF28836 mitigate?
A: The HF28836 is engineered to prevent "stiction" and abrasive wear in high-precision components. By maintaining a cleanliness level of 10 microns, it protects the tight tolerances of servo valves and high-pressure pumps from particulate-induced scoring, which is the leading cause of hydraulic efficiency loss.
Q2: How does the 20-bar collapse rating affect performance during cold starts?
A: In low-temperature environments, hydraulic oil viscosity increases, creating higher differential pressure across the media. The 20-bar structural integrity of the HF28836 ensures the element does not bypass or collapse during these high-viscosity "cold start" surges, maintaining protection even at -30°C.
Q3: Is the HF28836 compatible with biodegradable or synthetic hydraulic fluids?
A: Yes. The high-grade cellulose media and Nitrile (Buna-N) seals are chemically compatible with standard mineral-based oils (HLP), as well as most common synthetic and biodegradable hydraulic fluids, provided they fall within the -30°C to +100°C temperature range.
Q4: Can this element be used in the pilot control circuit?
A: Absolutely. Due to its high-integrity pressure rating and 10-micron precision, the HF28836 is an ideal choice for pilot line filtration, ensuring that the sensitive joystick and control valves in machines like the Volvo EC or JCB JS series receive clean oil for smooth operation.
Q5: What are the indicators that the HF28836 needs replacement?
A: While replacement intervals should follow the OEM (JCB, Doosan, etc.) schedule, the element should be changed immediately if the system's differential pressure indicator is triggered or if oil analysis shows a drop in the ISO 4406 cleanliness code. Timely replacement prevents the filter from entering a "bypass" mode where unfiltered oil circulates through the system.
Partner for Maintenance Excellence
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Email: Sales@enginegensetparts.com
AYREST Filtration | High-Pressure Engineering | www.enginegensetparts.com
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