Reliable evaluation of water resistance for hydraulic oils
Hydrolytic stability is a critical property of hydraulic fluids – poor stability can lead to corrosion, sludge formation, and premature component failure. The DFYF-0301 Tester, designed in strict accordance with SH/T 0301 and ASTM D2619 standards, provides accurate assessment of hydrolytic stability for both mineral-based and synthetic hydraulic oils. It is an essential instrument for oil analysis in petrochemical, transportation, defense, and research laboratories.
Key Technical Specifications
Parameter | Value / Description |
Power supply | AC220V, 50 Hz |
Bottle rotation speed | 5 r/min |
Rotation motor power | 25 W |
Number of test bottles | 4 (four positions) |
Heating power | 2000 W (two groups) |
Temperature control | Digital display with over-temperature protection |
Timer | Up to 48 hours (built-in) |
Applicable standards | SH/T 0301, ASTM D2619 |
Key Features & Advantages
✔ Dual-standard compliance – globally accepted
Meets both SH/T 0301 and ASTM D2619 standards, ensuring results are internationally recognized. Ideal for import/export inspection, arbitration, and in-house quality control.
✔ Four independent test positions – high throughput
The unit holds up to 4 standard test bottles simultaneously, allowing parallel testing of multiple samples or replicates – significantly improving laboratory efficiency.
✔ Precise, stable rotation
Constant rotation speed of 5 r/min (motor power 25 W) ensures uniform mixing of oil, water, and copper specimens throughout the 48-hour test cycle, mimicking real-world conditions.
✔ Powerful and safe heating system
2000 W heating power (two independent groups) for fast, stable temperature ramp-up
Digital temperature controller with over-temperature protection – prevents overheating and ensures operator safety
Built-in 48-hour timer – automatic shut-off after test completion
✔ Robust bottle clamping mechanism
Standard test bottles are securely held by the rotating shaft fixture. Simply place the sample and test strips into the bottle, clamp it, and start the test – no complicated setup.
✔ Designed for reliability
All components are selected for long-term, trouble-free operation – suitable for continuous use in busy testing laboratories.
Typical Applications
Hydrolytic stability testing of mineral and synthetic hydraulic oils
Quality control for hydraulic fluid manufacturers
Incoming inspection and product certification
R&D of new hydraulic fluid formulations
Ideal for:
Petrochemical labs, third-party testing centers, transportation and defense sector quality assurance, research institutes, and university engineering labs.

Why Choose the DFYF-0301?
✔ Standard compliant – SH/T 0301 & ASTM D2619 – authoritative, globally recognized
✔ 4-station parallel testing – saves time, increases throughput
✔ Precise 5 r/min rotation – consistent agitation, reproducible results
✔ Digital control + over-temp protection – safe, accurate, easy to use
✔ 48-hour timer – fully automated test cycle
✔ Robust construction – built for demanding lab environments
Contact Us
Ensure your hydraulic oils resist hydrolysis and protect critical systems. Contact us today for quotes, detailed specifications, and SOPs.
�� Sales email: [lovecarlos2000@gmail.com]
�� 24-hour hotline: [+86 15941156556]
DFYF-0301 – Your reliable partner for hydrolytic stability testing

