Hydraulic Transmission Oil 6# (ISO VG 46) is a high-performance lubricant specifically designed for demanding high-pressure hydraulic systems. Its advanced formulation ensures superior thermal stability, wear protection, and efficiency in extreme operating conditions.
1. Exceptional Thermal and Oxidation Stability
High-pressure hydraulic systems generate significant heat, accelerating oil degradation. Hydraulic Oil 6# contains premium oxidation inhibitors that:
● Extend service life by resisting sludge and varnish formation.
● Maintain viscosity stability under prolonged high-temperature operation (up to 100°C).
● Reduce maintenance costs by minimizing oil breakdown and deposit accumulation.
This stability ensures consistent performance in hydraulic pumps, valves, and actuators, even under continuous heavy loads.
2. Superior Wear Protection Under Extreme Pressure
High-pressure systems demand robust anti-wear properties to prevent component failure. Hydraulic Oil 6# offers:
● Enhanced film strength to protect metal surfaces in gear pumps and piston motors.
● Anti-scuffing additives (e.g., zinc or ashless compounds) that reduce friction in high-load zones.
● Long-term equipment durability, reducing downtime and repair expenses.
Tests such as FZG gear tests and ASTM D4172 confirm its effectiveness in preventing wear under extreme pressures.
3. Excellent Low-Temperature Fluidity
Unlike conventional hydraulic oils, Hydraulic Oil 6# maintains flowability in cold environments due to:
● High viscosity index (VI > 150), ensuring smooth operation from -30°C to 100°C.
● Synthetic base oils or advanced pour point depressants, preventing wax formation in sub-zero conditions.
● Quick cold-start performance, reducing energy consumption and pump cavitation risk.
This makes it ideal for mobile hydraulic equipment operating in winter or Arctic climates.
4. Water Resistance and Anti-Corrosion Properties
Moisture ingress is a common issue in hydraulic systems, leading to rust and component damage. Hydraulic Oil 6# provides:
● Effective demulsibility, allowing water to separate quickly for easy drainage.
● Rust and corrosion inhibitors, protecting steel and copper alloys from oxidation.
● Extended fluid life by resisting acid formation due to water contamination.
These properties are critical in marine hydraulics, offshore machinery, and humid industrial environments.
5. Energy Efficiency and Environmental Benefits
Modern hydraulic systems demand energy-efficient lubricants. Hydraulic Oil 6# contributes by:
● Reducing internal friction, improving pump efficiency and lowering power consumption.
● Minimizing leaks due to optimal seal compatibility with NBR, FKM, and other elastomers.
● Meeting eco-friendly standards (e.g., biodegradable options for environmentally sensitive applications).

Its ability to enhance equipment longevity, reduce maintenance costs, and improve energy efficiency makes it a preferred choice for industries such as construction, mining, and manufacturing. By selecting the right hydraulic oil, operators can maximize system reliability and productivity in even the most demanding conditions.





