
Ayater 9660/9661/9664 are high-pressure filters (35-50MPa, 600-1000L/min) with precise purification and easy element replacement for industrial systems.


As core high-pressure filtration solutions from Ayater , the 9660/9661/9664 series are engineered for diverse industrial hydraulic circuits-covering medium to ultra-high pressure scenarios. All three series feature high-efficiency filter media, user-friendly maintenance designs, and corrosion-resistant housings, ensuring stable performance under continuous high-load conditions. They efficiently capture contaminants to protect hydraulic components, while broad compatibility with hydraulic oils (ISO VG 32–100) makes them adaptable to automation, construction, mining, and marine applications.
The 9660 hydraulic filter is tailored for medium-heavy duty systems, boasting a 38MPa operating pressure and 700L/min flow rate. As a dedicated 9660 hydraulic return line filter, it captures contaminants down to 4μm-trapping metal shavings and sludge to prevent component wear. The 9660 filter element replacement adopts a tool-free quick-release design, completing replacements in under 2.5 minutes, while Ayater's proprietary media enhances dirt-holding capacity by 38%, prolonging cycles to 2200 operating hours.


The 9661 hydraulic filter is optimized for medium-high pressure pressure line systems, with a 35MPa rating and 600L/min flow rate. As a professional 9661 hydraulic pressure line filter, it traps 5μm contaminants in the pressure loop, protecting precision components like valves and pumps. The 9661 filter element replacement features a quick-release structure, taking just 2 minutes to replace, and its exclusive media boosts dirt-holding capacity by 35% vs. standard elements, cutting maintenance costs.
The 9664 hydraulic filter is a flagship for extreme high-pressure circuits, with a 50MPa rating and 1000L/min flow rate. As a high-end 9664 hydraulic return line filter, it captures ultra-fine 2μm contaminants, preventing irreversible component damage. The 9664 filter element replacement uses a sealed quick-release design for safe, fast changes in high-pressure environments, and advanced media enhances dirt-holding capacity by 50%, extending cycles to 2500 operating hours.

|
Specification |
9660 Series |
9661 Series |
9664 Series |
|---|---|---|---|
|
Model Series |
Ayater 9660 (9660 hydraulic filter) |
Ayater 9661 (9661 hydraulic filter) |
Ayater 9664 (9664 hydraulic filter) |
|
Operating Pressure |
38MPa (9660 high pressure hydraulic filter) |
35MPa (9661 high pressure hydraulic filter) |
50MPa (9664 high pressure hydraulic filter) |
|
Maximum Flow Rate |
700L/min |
600L/min |
1000L/min |
|
Filtration Precision Options |
4μm, 6μm, 10μm (9660 4μm hydraulic filter element) |
5μm, 8μm, 10μm (9661 5μm hydraulic filter element) |
2μm, 3μm, 5μm (9664 2μm hydraulic filter element) |
|
Compatible Medium |
Hydraulic Oil (ISO VG 32–80), Anti-wear Fluid |
Hydraulic Oil (ISO VG 32–68), Anti-wear Fluid |
Hydraulic Oil (ISO VG 46–100), High-Viscosity Fluid |
|
Connection Type |
9660 hydraulic filter SAE flange connection (SAE 8/10/12) |
9661 hydraulic filter SAE thread connection (SAE 6/8/10) |
9664 hydraulic filter SAE flange connection (SAE 12/16/20) |
|
Housing Material |
High-strength cast aluminum alloy |
High-strength cast aluminum alloy |
High-strength forged steel alloy |
|
Bypass Valve Set Pressure |
41±2MPa |
38±2MPa |
53±2MPa |
|
Differential Pressure Indicator |
Standard (0.55MPa), Optional Electronic Alarm |
Standard (0.5MPa), Optional Digital Display |
Standard (0.7MPa), Optional IoT Monitoring |
|
Replacement Element Part No. |
Ayater 9660-EL (9660 filter element replacement) |
Ayater 9661-EL (9661 filter element replacement) |
Ayater 9664-EL (9664 filter element replacement) |
|
Operating Temperature Range |
-18℃ to +115℃ |
-15℃ to +110℃ |
-25℃ to +130℃ |
|
Dirt-Holding Capacity |
≥100g (4μm element) |
≥90g (5μm element) |
≥150g (2μm element) |
|
Seal Material |
NBR (oil-resistant, high-temperature resistant) |
NBR (oil-resistant, high-temperature resistant) |
Viton (ultra-high pressure resistant) |
|
Pressure Drop (Rated Flow) |
≤0.09MPa |
≤0.08MPa |
≤0.1MPa |
|
Weight (Without Element) |
12±0.5kg |
10±0.5kg |
25±1kg |
1. Pressure Adaptability: Covering 35-50MPa pressure ranges, the series adapts to medium to ultra-high pressure systems, with stable performance under long-term high-load operation.
2. Precise Contaminant Removal: 2-5μm high-precision options capture fine particles, extending hydraulic component lifespan by 40-50% vs. conventional filters.
3. Low Pressure Drop Design: Optimized flow channels control pressure drop to ≤0.1MPa, ensuring smooth oil circulation and no impact on system efficiency.
4. Effortless Maintenance: Tool-free element replacement (2-2.5 minutes) cuts maintenance time by 50-60%, reducing downtime and labor costs.
5. Broad Environmental Adaptability: Anti-corrosion housings and high-temperature seals adapt to dusty, low-temperature, and humid industrial environments.
6. Cost-Effective Operation: High dirt-holding capacity prolongs replacement cycles, while lightweight (aluminum) or durable (steel) housings reduce overall operational costs.
Large-scale hydraulic power units (HPU), construction machinery (excavators/loaders), steel mill auxiliary systems, agricultural harvesters, packaging machinery.
CNC machine tools, automation production lines, light construction machinery (graders), agricultural tractors, printing presses.
Large mining excavators, offshore oil drilling platforms, heavy-duty marine hydraulic systems, steel mill continuous casting machines, ultra-large injection molding machines.




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