Key Considerations for Selecting the Right Hydraulic Oil

1. Understand Your Equipment Needs: Each hydraulic system has unique requirements based on system type, load capacity, pressure levels, and operating temperature range. These factors determine the ideal hydraulic oil viscosity, additives, and performance characteristics needed to keep your machinery running efficiently.

2. Viscosity Matters

The viscosity grade of hydraulic oil directly affects equipment performance. Lower viscosity oils, such as ISO 32 (AW-32), perform well in colder environments, ensuring smooth startup and reduced resistance. Higher viscosity oils, like ISO 68 (AW-68), provide better lubrication and protection in high-temperature conditions, preventing oil film breakdown and reducing wear. Choosing the correct viscosity ensures smooth operation and prevents overheating or lubrication failure.

3. Compatibility with Additives:Hydraulic systems require specific additives to enhance performance and durability. Common additives include:

Anti-wear agents (AW) to minimize friction and extend component lifespan

Antioxidants to prevent oil degradation and oxidation

Anti-foaming agents to maintain stable operation and prevent air bubbles

Corrosion inhibitors to protect metal surfaces from rust and wear

Ensuring that the hydraulic oil you choose is compatible with your system’s requirements is essential for maintaining efficiency and protection.

4. Follow OEM Recommendations:Always check the Original Equipment Manufacturer (OEM) guidelines for recommended hydraulic oil specifications. Using the oil recommended by your machinery’s manufacturer helps maximize performance, reduce maintenance costs, and extend equipment lifespan.

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Understanding Hydraulic Oil Viscosity Grades:In industrial applications, hydraulic oils are classified by viscosity grades, commonly known as ISO 32, ISO 46, and ISO 68. These grades are determined by the oil’s weight and viscosity, with each grade suited for different applications and temperature ranges.

ISO 32 (AW-32) → Best for low-temperature environments or high-speed systems requiring faster oil flow.

ISO 46 (AW-46) → A balanced option for general-purpose hydraulic systems operating in moderate temperatures.

ISO 68 (AW-68) → Ideal for high-temperature environments or heavy-duty machinery requiring enhanced lubrication protection.

Using an oil with the wrong viscosity can lead to poor lubrication, overheating, or startup issues. If the oil is too thick (high viscosity), it may struggle to flow properly in cold starts, while oil that is too thin (low viscosity) may fail to provide sufficient lubrication in high temperatures.

Hai Lu Jya He – Your Trusted Hydraulic Oil Supplier

At Hai Lu Jya He, we provide a comprehensive range of premium anti-wear hydraulic oils, including ISO 32 (AW-32), ISO 46 (AW-46), and ISO 68 (AW-68), tailored to meet the diverse needs of industrial machinery. All our products comply with international quality standards and come with TDS (Technical Data Sheets) and SDS (Safety Data Sheets) to ensure safe and reliable use.

As an ISO 9001:2015 certified company, we supply high-quality hydraulic oils trusted by major brands such as CPC Kuoguang, MOBIL, and SHELL, ensuring you receive the best lubrication solutions for your operations.

For expert guidance on selecting the perfect hydraulic oil formulation, contact us at +886-4-25332210 or fill out the inquiry form below. Let us help you optimize your equipment’s efficiency, durability, and overall performance!