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HC6400FAN8H Hydraulic Filter Element
High-Pressure Inorganic Fiber Media for Pall Housing | Beta 1000 Precision Filtration for Rexroth & Vickers Pumps | Replacement for HC6400F & 11400 Series
Absolute Filtration for High-Pressure Critical Systems
The AYREST HC6400FAN8H is a high-performance, industrial-grade hydraulic oil filter element designed to replace high-end filtration solutions in sophisticated pressure lines. Engineered specifically for systems where fluid cleanliness is non-negotiable, this element utilizes a multi-layered inorganic micro-glass structure. Unlike standard paper or simple fiberglass filters, our inorganic fiber media achieves a Beta ratio ($\beta_x$) $\ge 1000$, meaning it captures 99.9% of harmful particles down to the micron level in a single pass.
The structural integrity of the HC6400FAN8H is its strongest asset. It features a heavy-duty galvanized steel center tube and reinforced end caps that are thermal-bonded to the media. This robust construction is built to withstand extreme Fatigue Pressure Pulses and cold-start spikes that would typically cause a lesser filter to collapse or bypass. By maintaining ultra-clean fluid delivery, this filter effectively shields your expensive axial piston pumps, servo valves, and proportional control blocks from silt-sized contaminants, significantly reducing unplanned downtime and the "hidden costs" of internal component erosion.
Structural & Technical Parameters
| Feature / Parameter | Technical Details & Industry Standards |
|---|---|
| Model Number | HC6400FAN8H (High-Pressure Series) |
| Filter Media | Multi-Layer Inorganic Micro-Glass (Synthetic) |
| Micron Rating | 5μm - 10μm (Absolute Filtration) |
| Collapse Pressure | Up to 210 Bar (21 MPa) - High-Pressure Resistance |
| Seal Material | High-Grade Nitrile (Buna-N) / Optional Viton (FKM) |
| Flow Direction | Outside-to-Inside High-Strength Flow Path |
| End Cap Material | Corrosion-Resistant Carbon Steel / Reinforced Polymer |
| Fluid Compatibility | HH, HL, HM, HV, HG (ISO 6743/4 Standards) |
Advanced Filtration Technology
Exceptional Dirt-Holding Capacity (DHC): Our optimized pleat geometry maximizes the effective surface area. This means the HC6400FAN8H can trap significantly more grams of contaminant before reaching the terminal pressure drop ($\Delta p$), allowing for longer intervals between replacements and reducing your Total Cost of Ownership (TCO).
Zero-Bypass Structural Integrity: The thermal-bonding process ensures that the filter media is permanently sealed to the end caps. This eliminates the risk of "seepage" or bypass that occurs with low-quality adhesive filters, ensuring 100% of the oil is filtered every time.
Low Initial Clean Pressure Drop: The high-porosity micro-glass media ensures that even at high flow rates, the energy loss (pressure drop) is minimized, protecting your system from cavitation during cold starts.
Reinforced Support Layers: Both sides of the filter media are supported by a high-strength epoxy-coated wire mesh, preventing "pleat bunching" under high-flow fluctuations and ensuring consistent filtration efficiency throughout the filter's life.
Expert Technical Q&A
Q1: Is the HC6400FAN8H compatible with phosphate ester (HFD) or fire-resistant fluids?
A: Standard HC6400FAN8H comes with Nitrile seals for mineral oils. However, for HFD or high-temperature synthetic fluids, we offer a Viton (FKM) seal version. Please specify your fluid type when ordering to ensure 100% chemical compatibility and prevent seal swelling.
Q2: My current filter collapses when the system starts in winter. How does AYREST solve this?
A: Winter "cold-start" spikes are a leading cause of filter failure. The HC6400FAN8H utilizes a reinforced heavy-duty center tube and high-flow media with low restriction. This allows the oil to pass through more easily even when viscous, while the rigid core prevents the element from "imploding" under the pressure differential.
Q3: Can I use this as a direct replacement for Pall HC6400 series elements?
A: Yes. Our HC6400FAN8H is engineered to be 100% dimensionally interchangeable with the original Pall series. It fits perfectly into the existing filter housing without any modification, providing equivalent or superior filtration performance.
Q4: How do I know when it's time to replace the HC6400FAN8H?
A: While intervals vary, we strongly recommend replacement when the differential pressure reaches 1.5 - 2.0 bar (depending on your housing's indicator setting). Waiting until the bypass valve opens means unfiltered oil is entering your system, which can cause thousands of dollars in pump damage.
Q5: What is the benefit of "Inorganic Fiber" over standard cellulose?
A: Cellulose (paper) fibers are large and inconsistent. Inorganic micro-glass fibers are much thinner and uniform, creating a more sophisticated "maze" for contaminants. This results in "Absolute" filtration rather than just "Nominal," which is essential for protecting modern high-pressure hydraulic components.
Ready to Optimize Your System Cleanliness?
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