Rock
Aggregate
Cement
Concrete
Soil
Steel
Bitumen/Asphalt
Security Survey Equipment
General Items
APPARATUS FOR SHEAR STABILITY OF LUBRICATING OILS CONTAINING POLYMERS AZA1329
The Apparatus for Shear Stability of Lubricating Oils Containing Polymers (Model: AZA1329) from AZA Lab is a high-precision KRL-type friction tester designed to determine the shear stability of lubricating oils and polymer-containing pressure fluids. It operates in accordance with DIN 51350-6 – Testing of Lubricants: Testing in the Shell Four-Ball Tester, Part 6, which defines the KRL method (Kugel Rollen Lager) for viscosity stability testing.
The instrument uses SKF 32008 tapered roller bearings as the friction pair to simulate the mechanical shear conditions experienced by lubricants in transmission and hydraulic systems. This test provides a reliable prediction of permanent viscosity loss, helping users evaluate the durability and performance stability of lubricants under stress.
Description
Working Principle
The AZA1329 KRL Tester applies controlled mechanical shear stress to the test lubricant inside a four-ball friction system equipped with a tapered roller bearing assembly.
Under specified conditions—speed of 1500 rpm, test force of 5000 N, temperature of 60°C, and test duration of approximately 20 hours—the lubricant experiences mechanical degradation similar to that occurring in real gear systems.
After the test, the viscosity is measured before and after shearing. The percentage decrease in viscosity represents the shear stability of the lubricant.
Construction and Design
The AZA1329 is built on a heavy-duty steel frame and includes a precision-controlled heating and cooling system. The testing chamber is embedded with the bearing and mandrel assembly, supported by advanced sensors and controllers to ensure consistent performance throughout the test duration.
The system consists of:
- Embedded test body and drive spindle
- SKF 32008 tapered roller friction pair
- Tapered roller bearing assembly
- Constant temperature control system
- Data acquisition and display interface
Key Features & Advantages
- Standards Compliant: Fully meets DIN 51350-6 and equivalent CEC L-45-99 (KRL) requirements.
• Real-World Simulation: Recreates mechanical shear conditions of lubricants under load.
• Stable Temperature Control: Imported compressor maintains a constant 60°C ±1°C environment.
• High Load Capability: Supports continuous operation at 5000 N load.
• Long-Duration Test Operation: Performs up to 1.74 million revolutions (≈20 hours).
• Precision Monitoring: Displays real-time temperature, speed, and duration.
• Durable and Safe: Rugged design with overload and overheat protection.
• Low Maintenance: Built for continuous operation with minimal servicing.
Test Conditions
| Parameter | Condition |
| Tap Speed | 1500 RPM |
| Test Force | 5000 N |
| Test Temperature | 60°C |
| Test Duration | 20 Hours |
| Total Revolutions | 1.74 Million |
The AZA1329 Apparatus for Shear Stability of Lubricating Oils Containing Polymers from AZA LAB offers a dependable, high-precision solution for evaluating lubricant shear stability according to DIN 51350-6 standards. With its rugged design, automated temperature control, and reliable performance, this system is an essential tool for laboratories focused on lubricant development, testing, and certification.
| Parameter | Specification |
|---|---|
| Model | AZA-1329 |
| Applicable Standard | DIN 51350-6 |
| Motor Speed | 1475 ± 25 RPM |
| Temperature Control Mode | Imported compressor cooling system |
| Sample Temperature | 60 ± 1°C |
| Sample Volume | 40 ± 0.5 ml |
| Test Load | 5000 ± 200 N |
| Total Revolutions | 1.74 million |
| Test Duration | Approximately 19 hours 40 minutes |
| Power Requirement | 5.5 kW |
| Power Supply | AC 220V, 50Hz |
| Dimensions (L × W × H) | 640 × 380 × 895 mm |
| Weight | 150 kg |
Related products
AUTOMATED CLEVELAND OPEN CUP FLASH & FIRE POINT ANALYZER AZA1276
The AutoFlash1276 (Model: AZA1276) from AZA Lab is a fully automated, microcontroller-based Cleveland Open Cup (COC) Flash and Fire Point Analyzer designed for high-temperature petroleum testing applications. Engineered for accuracy, safety, and regulatory compliance, the AZA1276 delivers reliable flash and fire point determination for materials with flash points above 79 °C up to 400 °C.
Complying with ASTM D92, ISO 2592, IS 1448 (Part 69), and IP 36, this advanced analyzer is ideal for laboratories and industrial environments where repeatability, operator safety, and international acceptance are critical.
CLASSIC OPEN CUP FLASH POINT APPARATUS AZA1294
The AZA LAB Classic Open Cup Flash Point Apparatus AZA1294 is a reliable and cost-effective laboratory instrument designed for accurate determination of flash point temperature of petroleum products and combustible liquids using the Cleveland Open Cup (COC) method.
Manufactured in full compliance with ASTM D92 and ISO 2592 standards, the AZA1294 is ideally suited for petroleum laboratories, quality control facilities, educational institutions, refinery laboratories, and industrial safety testing environments where dependable flash point determination is essential.
The apparatus combines a classic manual testing approach with durable construction, stable heating performance, and straightforward operation, making it an excellent solution for routine laboratory testing, operator training, and quality assurance applications.
DIST-86S SEMI-AUTOMATED DISTILLATION TESTER AZA1288
The AZA Lab Dist-86S Semi-Automated Distillation Tester AZA1288 is a precision-engineered petroleum testing instrument designed for accurate determination of the distillation characteristics of petroleum products and volatile organic liquids in full accordance with ASTM D86 standards.
Built for laboratories requiring dependable performance, repeatability, and operational safety, the AZA1288 combines intelligent semi-automation with operator flexibility. The system is ideally suited for petroleum refineries, fuel inspection laboratories, aviation fuel testing facilities, research institutions, petrochemical plants, and educational laboratories.
The instrument utilizes PID-controlled heating technology, precision temperature monitoring, and an integrated condenser cooling system to ensure highly stable distillation conditions and accurate boiling point determination across a wide range of petroleum fractions.
PENSKY–MARTENS CLOSED CUP FLASH POINT TESTER AZA1278
The AZA1278 Pensky–Martens Closed Cup Flash Point Tester is a high-precision, microcomputer-controlled instrument designed for accurate determination of flash points of petroleum products under controlled conditions.
Fully compliant with ASTM D93, the system supports Procedures A, B, and C, making it suitable for a wide range of fuels, lubricants, and viscous petroleum samples. It is engineered for reliability, repeatability, and safe laboratory operation.
Standards Compliance
- ASTM D93 (Pensky–Martens Closed Cup)
PROGRAMMABLE FULLY-AUTOMATED CLEVELAND OPEN-CUP FLASH & FIRE POINT ANALYZER AZA1290
The AZA Lab Programmable Fully-Automated Cleveland Open-Cup Flash & Fire Point Analyzer AZA1290 is a high-precision petroleum testing instrument designed for fully automated determination of flash and fire points of petroleum products, lubricants, oils, bituminous materials, and combustible liquids in accordance with ASTM D92 and ISO 2592 standards.
Engineered for modern petroleum laboratories, the AZA1290 combines intelligent automation, advanced safety systems, precision temperature control, and comprehensive data management to deliver highly repeatable and operator-independent test results.
The system automates the complete testing cycle including heating control, ignition application, flash detection, fire point detection, result recording, and emergency shutdown, significantly improving laboratory efficiency, testing consistency, and operational safety.
SEMI AUTOMATED CLEVELAND OPEN CUPFLASH POINT ANALYZER AZA1289
The AZA1289 Semi-Automated Cleveland Open Cup Flash Point Analyzer from AZA Lab is engineered for accurate, repeatable determination of flash and fire points of petroleum products, lubricants, and other combustible liquids. Designed in full compliance with ASTM D92 and ISO 2592, this analyzer provides an optimal balance between automation, operator control, and cost efficiency.
The Cleveland Open Cup (COC) method is the globally accepted reference method for determining flash and fire points of materials with flash points above 79°C, making AZA1289 ideal for routine quality control, safety assessment, and regulatory testing in laboratory environments.
SEMI-AUTOMATED ABEL FLASH POINT ANALYZER AZA1275
The AZA1275 AutoFlash Abel Flash Point Tester from AZA Lab is a semi-automated, microcontroller-based Abel closed cup analyzer designed for precise determination of flash points of low-flash combustible liquids. Engineered to comply with IP 170, ISO 13736, and IS 1448 (Part 20), AZA1275 ensures reliable, repeatable, and regulation-compliant testing for petroleum, chemical, and industrial laboratories.
Equipped with an integrated Windows-based PC interface, AZA1275 delivers intuitive operation, automated flash detection, controlled heating, and comprehensive fault diagnostics. The system is ideal for laboratories that require accuracy, safety, and efficiency without the cost complexity of fully automated systems.
SEMI-AUTOMATED ATMOSPHERIC DISTILLATION ANALYZER AZA1285
The AZA1285 Semi-Automated Atmospheric Distillation Analyzer is a precision-engineered laboratory instrument designed for determining the distillation characteristics of petroleum products, fuels, solvents, and volatile organic liquids under atmospheric conditions. Developed for accurate boiling-range profiling and dependable laboratory performance, the AZA1285 combines manual operational flexibility with intelligent thermal regulation for highly repeatable and standards-compliant testing.
The system features a low-voltage manually adjustable heater integrated with PID-controlled condenser and receiver sections, ensuring stable distillation rates and accurate thermal management throughout the test cycle. A closed-loop, CFC-free refrigeration system provides efficient condensation without requiring external cooling water, while an integrated inert gas purge system enhances operator safety and minimizes oxidation risks during testing.