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Pain Point:
For engine oil manufacturers and formulation developers, low temperature cold start performance is one of the most critical indicators of oil quality. If the oil viscosity is too high at low temperatures, the engine will struggle to start in cold weather, and insufficient lubrication during the initial start up will accelerate wear on piston rings, crankshafts, and other key components. If the viscosity is too low, it may fail to provide adequate oil film protection during the early running period. More importantly, conventional viscosity test methods cannot simulate the actual cold start conditions of an engine at low temperatures, resulting in a gap between laboratory data and real world performance. How can you precisely measure the apparent viscosity of engine oil at –40 °C and ensure that your product meets the SAE J300 viscosity grade requirements?
Our Solution:
The DFYF 193 Apparent Viscosity Tester (CCS – Cold Cranking Simulator) is designed and manufactured in accordance with ASTM D5293 and GB/T 6538. It simulates the actual cold cranking process in an engine crankcase at low temperatures, accurately measuring dynamic viscosity at temperatures down to –40 °C. The instrument features an imported compressor refrigeration system and an imported drive motor, with full automation controlled by a PC – including automatic sample loading, measurement, calculation, temperature recovery, and cleaning. Before delivery, each unit is calibrated with 12 imported Cannon standard oils across the full viscosity range to ensure accurate and reliable data.
Customer Value:
You no longer need to ship oils with “unknown” low temperature performance. The DFYF 193 provides you with internationally compliant, traceable CCS viscosity data – helping you optimise formulations to meet SAE J300 grade requirements, reduce customer complaints and cold start failure risks, and strengthen your reputation as a high quality lubricant supplier.
Parameter | Value | Why It Matters to You |
Applicable Standards | ASTM D5293, GB/T 6538 | Dual compliance – results mutually recognised worldwide |
Viscosity Range | 1500 – 27000 mPa·s | Covers all SAE J300 low temperature viscosity grades |
Stator Temperature Control Accuracy | 0.02 °C | Far exceeds standard requirement (typically 0.1 °C) – ensures excellent repeatability |
Cold Bath Temperature Control Accuracy | ±0.1 °C | Guarantees stable and consistent low temperature conditions |
Minimum Test Temperature | –40 °C | Meets all SAE low temperature grade requirements |
Refrigeration System | Imported compressor + coverage cooling | Fast cooling, high stability, long service life |
Drive Motor | Imported motor | Maintains precise rotational speed even at –40 °C and high viscosity |
Repeatability | ≤ 2.6% | High consistency across multiple tests on the same sample – trustworthy |
Reproducibility | ≤ 7.3% | Data comparable across different laboratories – meets ASTM precision |
Calibration Standards | 12 imported Cannon standard oils | Full range multi point calibration – data comparable to high end imported instruments |
Control Method | PC based with Windows OS | User friendly interface and convenient data management |
Automation Functions | Automatic loading, measurement, calculation, temperature recovery, and cleaning | Minimises human intervention and operator error |
Standard Compliance
The DFYF-193 is designed and manufactured in strict accordance with ASTM D5293 and GB/T 6538. Compliance with both the Chinese national standard and the internationally recognised ASTM standard ensures that test results are accepted across domestic and global lubricant markets.
Imported Compressor Refrigeration System
The refrigeration unit uses an imported brand compressor combined with coverage refrigeration technology for rapid cooling. Advantages include: fast cooling from ambient to –40 °C, significantly improving testing efficiency; high temperature stability with bath control accuracy of ±0.1 °C; and long service life with low failure rates even under continuous high load operation, reducing maintenance costs.
Imported Drive Motor
The instrument employs an imported motor that drives the rotor to rotate stably in high viscosity oil samples at low temperatures. It maintains precise rotational speed even under extreme conditions of –40 °C and viscosities up to 27 000 mPa·s, providing a solid physical foundation for accurate viscosity calculation.
Fully Automatic Sample Loading – No Manual Injection
After setting the desired test temperature, simply click the “Start” button and the instrument automatically loads the sample. This eliminates manual injection errors such as air bubbles and incorrect volumes, ensuring consistent test conditions every time.
Fully Automatic Measurement and Real-Time Monitoring
During the 60-second rotation of the stator, the system continuously monitors rotor speed in real time, dynamically verifying test conditions and ensuring accurate, traceable data acquisition.
Fully Automatic Calculation and Data Storage
Upon test completion, the system automatically calculates the viscosity and saves the result. This eliminates manual calculation errors and facilitates audit trails and data management.
Automatic Temperature Recovery – No Waiting Between Tests
After a test, the rotor temperature rapidly recovers, allowing the next test to be started immediately. This significantly improves continuous testing efficiency, especially for high throughput quality inspection centres.
Fully Automatic Cleaning – No Disassembly Required
The instrument is equipped with an internal waste solvent bottle. After each test, the system automatically cleans the stator without any need for disassembly. This protects operator safety and extends stator life.
Calibration with 12 Imported Cannon Standard Oils
The core value of any viscosity tester lies in accuracy and repeatability. Each DFYF 193 is factory calibrated using 12 imported Cannon certified reference oils, covering the full range of 1500–27 000 mPa·s. Multi point calibration ensures linear response across the entire range; Cannon standard oils are the global benchmark for viscosity testing, guaranteeing that data are consistent with high end imported instruments.
Industry-Leading Stator Temperature Control Accuracy
Stator temperature accuracy reaches 0.02 °C – far exceeding the typical standard requirement of 0.1 °C. This is the key technical foundation for achieving superior repeatability (≤ 2.6%) and reproducibility (≤ 7.3%).
Scenario 1: International Lubricant Brand – Formulation Development and SAE Grade Certification
An international lubricant brand’s advanced engine oil R&D centre in China uses the DFYF-193 to test the CCS low-temperature viscosity of a new 0W-20 full synthetic engine oil. By precisely measuring apparent viscosity at –40 °C for different formulations, the R&D team confirmed that the product meets SAE J300 requirements for the 0W grade. The final product successfully obtained API SP and ILSAC GF-6 certifications.
Scenario 2: Third Party Testing Laboratory – High-Volume Commissioned Testing
A national-level oil testing centre in East China receives over 200 engine oil samples per month for CCS low-temperature viscosity testing. The DFYF-193’s fully automated workflow – automatic loading, measurement, calculation, and cleaning – dramatically increases daily throughput while minimising operator intervention and human error. The automatic cleaning feature is especially valuable for high-volume continuous testing, effectively protecting stator life.
Scenario 3: Engine Oil Manufacturer – Incoming Material and Outgoing Quality Control
A private Chinese lubricant producer uses the DFYF-193 for both base oil and finished oil quality control. Incoming base oils are tested for CCS viscosity to ensure batch to batch consistency; finished oils are tested before shipment to verify compliance with GB/T 6538. The 12 point Cannon calibration system ensures long term instrument stability, giving the company full confidence in their product quality.
Category | Details |
Established | Since 1978 – over 45 years of experience in petroleum testing instruments |
Facility Size | 8,000+ m² modern production base in Dalian High Tech Zone |
R&D Team | 15+ senior engineers specialising in oil analysis equipment |
Annual Capacity | 500+ units of various petroleum testing instruments |
Certifications | ISO 9001:2015 certified; products meet ASTM, ISO, GB/T, SH/T standards |
Export Markets | Southeast Asia, Middle East, Europe, South America, Africa |
Key Clients | National petrochemical labs, third party testing centres, university research labs, lubricant manufacturers |
We don’t just sell instruments. We provide complete testing solutions with 48 hour technical support response and lifetime remote assistance.
Standard Compliance: Fully conforms to ASTM D5293 and GB/T 6538
CE Marking: Available upon request (certificate number can be provided)
Calibration Certificate: Each unit comes with a calibration report using 12 imported Cannon standard oils covering the full range of 1500–27 000 mPa·s, traceable to international standards
Q1: What is the difference between CCS viscosity and kinematic viscosity?
A: Kinematic viscosity is measured under gravity, typically at 40 °C or 100 °C, and reflects the basic flow properties of the oil. CCS viscosity, on the other hand, is an apparent viscosity measured at low temperature and high shear rate, directly simulating the actual conditions during engine cold starting. CCS viscosity is the key parameter for SAE J300 viscosity grade classification and a critical indicator of winter grade oil performance.
Q2: What is the relationship between ASTM D5293 and GB/T 6538?
A: ASTM D5293 is the international standard for CCS viscosity testing, while GB/T 6538 is the Chinese national standard, which is technically equivalent to ASTM D5293. The DFYF 193 fully complies with both standards, making test results mutually recognised worldwide.
Q3: Why is stator temperature control accuracy of 0.02 °C so important?
A: CCS viscosity is extremely temperature sensitive – even small temperature variations cause significant viscosity fluctuations. The 0.02 °C accuracy far exceeds the standard requirement of 0.1 °C and is the key to achieving high repeatability (≤ 2.6%), making instrument data comparable to high end imported models.
Q4: How does the automatic cleaning work?
A: The instrument has an internal waste solvent bottle. After each test, the system automatically flushes the stator with cleaning solvent without any need for disassembly. This protects operators from exposure to oil samples and solvents, and effectively extends stator life.
Q5: What is the advantage of calibrating with 12 Cannon standard oils?
A: Cannon is the globally recognised benchmark for viscosity reference oils. Using 12 standard oils for multi-point calibration – rather than single-point or two point adjustment – ensures linear accuracy across the entire measurement range (1500–27 000 mPa·s). This means accurate and reliable data whether testing high-viscosity or low-viscosity oils.
Q6: What is your delivery time?
A: Standard delivery is 20–25 working days after order confirmation. For urgent needs, please contact us to check current stock.
Q7: Do you provide installation and training?
A: Yes. We provide an English user manual and installation video. Remote technical support is available 24/7 via WhatsApp, WeChat, or email. On-site training can be arranged for bulk orders.
Q8: What is your warranty policy?
A: 12 months from the date of shipment, excluding consumables. Lifetime technical support is included.
Per ASTM D5293 / GB/T 6538, here is exactly how the DFYF-193 performs the test:
Step | Action | Details |
1 | Set temperature | Set the target test temperature in the PC software (typically –40 °C, –35 °C, –30 °C, –25 °C, etc.) |
2 | Automatic loading | Click “Start” – the instrument automatically injects the oil sample into the stator cavity – no manual injection |
3 | Temperature stabilisation | The sample is automatically brought to the set temperature and held stable |
4 | Rotation measurement | The rotor rotates at a precise speed for 60 seconds, with real time monitoring of speed and torque |
5 | Automatic calculation | The system calculates apparent viscosity from the torque speed relationship and saves the result |
6 | Temperature recovery | The rotor warms up rapidly, ready for the next sample |
7 | Automatic cleaning | After the test, the system automatically cleans the stator with solvent – no disassembly required |
The entire process – from loading to cleaning – is fully automated, ensuring consistent test conditions and reliable data.
You Need | DFYF-193 Delivers |
Standard compliance | ASTM D5293, GB/T 6538 – recognised globally |
Temperature control accuracy | Stator 0.02 °C / Bath 0.1 °C – industry leading |
Refrigeration performance | Imported compressor + coverage cooling – fast cooling and long life |
Drive system | Imported motor – excellent low temperature performance even at –40 °C |
Level of automation | Fully automatic loading, measurement, calculation, recovery, and cleaning |
Data reliability | Calibrated with 12 imported Cannon standard oils – comparable to imported instruments |
Repeatability / Reproducibility | ≤ 2.6% / ≤ 7.3% – meets and exceeds standard requirements |
After sales support | 12 month warranty + lifetime remote support |
Trust | Factory direct since 1978, ISO 9001 certified |
Dalian Analytical Instrument Factory
Carlos Zhang (Overseas Sales Manager)
�� Tel / WhatsApp / WeChat: +86 18740265556
�� Email: 54639288@qq.com
�� Address: 1-1, No.107 Guangxian Road, High-Tech Zone, Dalian, Liaoning, China (Zip code: 116023)
We don’t write empty words. We provide data, facts, standards, and solutions – because that’s what B2B buyers and Google truly value.
