Polymethacrylate PMA VII for Gear Oil

Description

Polymethacrylate PMA VII for Gear Oil is the solution of polymethacrylate in highly refined mineral oil, is specially designed for long- span vehicle gear oil, transmission oil, automatic transmission oil, viscosity index improver with high shear stability, easily soluble in all mineral oil and synthetic base oil. And has good compatibility with other traditional lubricating oil additives.

Shanghai Minglan Chemical Co., Ltd. is a company that focuses on the research, development, production and sales of high-end lubricant additives, and is committed to providing innovative, environmentally friendly and efficient lubrication solutions to global lubricant manufacturers. The company’s business covers markets such as Russia, the Middle East, Europe, America, Africa, South America, and Southeast Asia, and widely serves passenger cars, commercial vehicles, industrial lubricants and other fields.

🏭 Modern production base – ensure stable supply & quality consistency
✅ Annual production of 100,000 tons of lubricant additives to ensure long-term supply to the global market
✅ DCS automated production & intelligent quality control to ensure batch consistency
✅ ISO 9001 / 14001 quality management system, in line with global production standards
✅ Global logistics support, fast delivery, reduce supply chain risks

🔬 Advanced R&D laboratory – drive formulation innovation & product upgrades
✅ Engine simulation test (Sequence IIIH, IVB, VIE, VIF) – ensure engine cleanliness & wear resistance
✅ High temperature & low temperature adaptability test (50°C+ high temperature & -40°C extreme cold) – meet the needs of different climate conditions
✅ Tribology & anti-wear test (Four-Ball, SRV, FZG) – provide excellent lubrication protection
✅ Low ash & fuel economy optimization – meet global regulations such as API, ACEA, ILSAC, GOST-R (Russia)

📌 Why choose Minglan?
✔ High-end customized formula – suitable for different market demands such as passenger cars, commercial vehicles, industrial lubricants, etc.
✔ Comprehensive technical support – a team of senior engineers provides formula optimization & on-site application guidance
✔ Complete global certification – in compliance with international standards such as API, ACEA, ILSAC, GOST-R (Russia)
✔ Long-term stable supply – modern factories & efficient supply chain to ensure reliable delivery
✔ Strong regional adaptability – suitable for special working conditions such as **high temperature (Middle East), extreme cold (Russia), high humidity (Southeast Asia & South America), heavy load (Africa & America)**

📩 Contact us to get the best high-end lubricant additive solution for you!

Polymethacrylate (PMA) VII is a type of Viscosity Index Improver (VII) specifically designed for gear oils. PMA VII helps enhance the performance of gear oils by modifying their viscosity characteristics over a wide range of temperatures, improving gear oil efficiency in both high and low temperature conditions.

Here’s an overview of PMA VII and its role in gear oil formulations:

Key Features of Polymethacrylate (PMA) VII for Gear Oil:

1. Viscosity Index Improvement:
   • Function: PMA VII is primarily used to improve the viscosity index (VI) of gear oils, meaning it helps maintain a stable viscosity over a wide range of temperatures. This is particularly important because gear oils need to remain fluid enough to lubricate gears during cold start-ups (low temperatures) and thick enough to withstand the heat generated during high-speed operation (high temperatures).
   • Benefit: It ensures that the oil flows well at low temperatures, providing protection during cold starts, and maintains sufficient thickness at high temperatures to prevent wear and overheating of the gear components.
2. Thermal Stability:
   • Function: PMA VII is designed to remain stable under high temperatures, which is essential for gear oils that are subjected to prolonged heat during operation. This stability prevents the viscosity from breaking down and ensures that the oil continues to perform effectively.
   • Benefit: Prevents oil degradation, maintains lubricating properties, and ensures consistent gear protection throughout the oil’s service life.
3. Improved Oil Film Strength:
   • Function: By increasing the viscosity index, PMA VII improves the oil film strength at higher operating temperatures, which is crucial for reducing friction and wear between gear teeth.
   • Benefit: Enhanced oil film strength helps reduce metal-to-metal contact in gears, thus extending the life of the gears and preventing damage due to excessive friction.
4. Resistance to Shear Breakdown:
   • Function: PMA VII provides improved shear stability, meaning the oil’s viscosity is less likely to break down under the mechanical stress of gear meshing. This is especially important in gear oils that are exposed to high shear forces.
   • Benefit: Improved shear stability ensures that the oil maintains its viscosity for a longer period, providing consistent lubrication and wear protection.
5. Low Pour Point:
   • Function: PMA VII can also contribute to lowering the pour point of the gear oil, ensuring that the oil remains fluid at low temperatures.
   • Benefit: This property helps ensure that gear oil remains fluid during cold starts, even in extremely low ambient temperatures, preventing inadequate lubrication during startup.
6. Improved Pumpability:
   • Function: By maintaining a stable viscosity across a broad temperature range, PMA VII enhances the pumpability of the oil at low temperatures. This ensures that the oil circulates effectively through the gear system at startup.
   • Benefit: Ensures smooth operation and quick lubrication at startup, reducing the risk of damage to gears due to insufficient oil flow.

Applications of Polymethacrylate PMA VII in Gear Oils:

1. Automotive Gear Oils:
   • Used in both manual transmission oils (MTO) and differential oils, PMA VII helps improve cold start performance and high-temperature stability, which is important in automotive gearboxes.
2. Industrial Gear Oils:
   • Industrial gearboxes, especially those operating in heavy-duty applications or under high temperature and load conditions, benefit from the enhanced thermal stability and viscosity performance provided by PMA VII.
3. Marine Gear Oils:
   • Gear oils for marine applications, where temperature swings and operational conditions can vary widely, can benefit from the high viscosity index provided by PMA VII, ensuring consistent lubrication and performance under diverse conditions.
4. Heavy Equipment and Off-Highway Gear Oils:
   • In the construction, mining, and agricultural industries, gear oils subjected to severe operating conditions such as high load and high temperature can see enhanced performance with PMA VII, especially in gearboxes of large machinery and vehicles.
5. Wind Turbine Gear Oils:
   • In applications like wind turbines, where gear oils face constant mechanical stress and thermal cycles, PMA VII can provide the necessary viscosity control to improve performance and oil life.

Benefits of Using PMA VII in Gear Oil:

1. Enhanced Operational Efficiency:
   • PMA VII ensures that gear oils maintain their desired viscosity across a range of temperatures, which helps improve gear efficiency by reducing friction and wear. This can lead to smoother operation, quieter performance, and reduced energy consumption.
2. Extended Oil Life:
   • By reducing the rate of oil degradation and improving shear stability, PMA VII contributes to the extended life of the gear oil, reducing the need for frequent oil changes and minimizing downtime.
3. Protection Against Wear and Tear:
   • The improved viscosity characteristics of PMA VII help protect critical gear components against wear, pitting, and surface fatigue. This is crucial for extending the operational life of expensive equipment and reducing maintenance costs.
4. Improved Cold Start Performance:
   • The ability of PMA VII to reduce the pour point ensures that gear oils can provide proper lubrication at lower temperatures, protecting gears from damage during initial startup when oil is cold and more viscous.
5. Stable Performance Over Time:
   • Gear oils formulated with PMA VII maintain consistent performance in extreme operating conditions, ensuring that the oil continues to protect the gears effectively throughout its service life.
6. Lower Environmental Impact:
   • By improving the efficiency of gear oils and extending oil drain intervals, the use of PMA VII can reduce the frequency of oil disposal and contribute to a reduction in environmental impact, particularly in large-scale industrial operations.

Considerations for Using PMA VII in Gear Oils:

1. Compatibility with Base Oil:
   • PMA VII should be compatible with the base oil used in the formulation (mineral oil, synthetic oil, or semi-synthetic oil). It’s essential to ensure that the additive does not interact negatively with the base oil or other additives.
2. Concentration Levels:
   • The concentration of PMA VII in gear oils should be optimized to achieve the desired viscosity index improvement without affecting other performance aspects of the oil, such as anti-wear properties or oxidation resistance.
3. Testing and Validation:
   • It’s important to test the gear oil formulation with PMA VII under actual operational conditions (such as temperature fluctuations, high load, and shear conditions) to validate performance and ensure that the oil meets the necessary standards and specifications for the application.
4. Potential Impact on Additive Balance:
   • The addition of PMA VII may affect the balance of other additives in the gear oil, such as anti-wear agents, extreme pressure (EP) additives, and corrosion inhibitors. It’s important to maintain a balanced formulation to ensure overall performance.

Conclusion:

Polymethacrylate (PMA) VII is a highly effective Viscosity Index Improver (VII) that enhances the performance of gear oils by maintaining optimal viscosity levels across a wide temperature range. It ensures better cold start performance, reduces friction and wear, improves thermal stability, and extends the life of both the oil and the gear components. PMA VII is widely used in automotive, industrial, marine, and heavy-duty gear oil formulations to enhance the efficiency, longevity, and reliability of gear systems under demanding operational conditions.