SN500 base oil is one of the most widely used grades of mineral base oil in the lubricant industry. Due to its relatively high viscosity, it is used in the production of various engine oils, gear oils, industrial lubricants, and greases. As one of the key raw materials in lubricant formulation, this product plays an effective role in achieving the required viscosity and creating a suitable lubricating film between moving parts.

Choosing the right base oil is highly important for lubricant manufacturers, because the properties of the base oil affect the technical specifications, performance, and quality of the final product. In this article by Karen Palayesh Pishran Novin, we will get familiar with SN500 base oil, its technical properties, industrial applications, production process, and important points regarding its purchase and supply.

What Is SN500 Base Oil?

SN500 base oil is one of the Group I mineral base oils obtained from the processing and refining of petroleum fractions. This product is usually produced through processes such as solvent extraction, dewaxing, and supplementary refining to achieve the properties required for use in lubricant formulation.

The term SN usually stands for Solvent Neutral, and the number 500 indicates the common grade of this product in the commercial classification of base oils. Compared with grades such as SN150, SN500 has a higher viscosity and is considered a practical option for producing lubricants that require a heavier base oil.

However, the exact specifications of this product, including viscosity, viscosity index, flash point, and pour point, depend on the manufacturer and the refining process conditions. Therefore, when purchasing SN500 base oil, the technical specifications of that specific product must be reviewed.

Technical Specifications of SN500 Base Oil

To select SN500 base oil, familiarity with its technical parameters is essential. These specifications help manufacturers evaluate how well the product matches the needs of their production line and lubricant formulation.

The most important specifications to review include:

Kinematic Viscosity: It indicates the oil's resistance to flow at a specified temperature. The higher viscosity of SN500 makes it suitable for formulating heavier lubricants.

Viscosity Index (VI): It shows how much the oil's viscosity changes with temperature changes.

Flash Point: One of the important indicators in evaluating the oil's behavior against heat.

Pour Point: The lowest specified temperature in the standard test at which the oil still has the ability to flow under test conditions.

Color and Appearance: These are considered for evaluating the visual condition and uniformity of the product.

As a general reference, the kinematic viscosity of SN500 in many commercial specifications is reported at about 90 to 110 centistokes at 40°C and about 10.5 to 11.5 centistokes at 100°C. These figures are common values and should not be considered as the definitive specifications of all SN500 products without reviewing the technical data sheet.

How Is SN500 Base Oil Produced?

The production of SN500 base oil involves a series of refining stages aimed at improving the physical and chemical properties of the oil. The details of the process may vary depending on the refinery technology and the feedstock used, but in the common method for producing Group I base oil, the main stages include the following:

1. Preparation of Petroleum Feedstock: First, the appropriate petroleum fraction is prepared through primary refining and distillation processes for the next stages.

2. Solvent Extraction: At this stage, some undesirable compounds are separated from the oil to improve the product's properties for use as base oil.

3. Dewaxing: This process is carried out with the aim of reducing waxy compounds and improving the oil's behavior at low temperatures.

4. Supplementary Refining: Depending on the technology used, supplementary operations are performed to improve the color, stability, and other properties of the oil.

5. Quality Control: Finally, the product's properties are examined through standard tests to determine its compliance with the required specifications.

Applications of SN500 Base Oil in Different Industries

Due to its higher viscosity compared with lighter grades, SN500 base oil is used in the production of various products. Its final selection depends on the formulation and standards of the end product.

Engine Oil Production: SN500 is used in the formulation of some gasoline and diesel engine oils. Manufacturers can combine it with lighter grades and suitable additives to achieve the desired viscosity and performance requirements.

Gear Oil and Industrial Lubricant Production: In some gear oils and lubricants used in industrial equipment, the viscosity of the base oil is very important. SN500 can be one of the formulation components of these products and help adjust the viscosity of the final oil.

Industrial Grease Production: In the grease industry, base oil is one of the main components of the product. Due to its viscosity, SN500 can be used in the production of some industrial greases; however, the final performance depends on the type of thickener, additives, and formulation.

Other Industrial Lubricants: This grade may also be used in the production of some process oils and specialized lubricant compounds. For each application, reviewing the technical requirements and compatibility of the base oil with the final product is essential.

What Is the Difference Between SN500 and SN150 Base Oil?

The most important difference between SN500 and SN150 relates to their viscosity. SN150 is a lighter grade and is used in formulations that require a base oil with lower viscosity. In contrast, SN500 has a higher viscosity and is suitable for producing heavier lubricants.

In many formulations, combining these two grades allows manufacturers to adjust the viscosity of the final oil. However, the blending ratio must be determined based on the final product specifications, test results, and standard requirements.

Important Points in Purchasing and Supplying SN500 Base Oil

Purchasing SN500 base oil for industrial use and lubricant production should be based on technical and commercial criteria. Price alone is not a suitable criterion for evaluating quality or selecting a supplier.

Before placing an order, review the following:

Obtain the product Technical Data Sheet (TDS).

Review the Certificate of Analysis (COA) of the batch.

Match the viscosity and other parameters with the production line requirements.

Check the order volume and type of packaging.

Specify the shipping conditions, delivery time, and destination.

Check the possibility of continuous and consistent supply in future orders.

These points are especially important for bulk purchases and long-term supply contracts, because the consistency of raw material quality can play an important role in maintaining production uniformity.

Production and Supply of SN500 Base Oil at Karen Palayesh Pishran Novin

Karen Palayesh Pishran Novin is active in the production and supply of base oils, and SN500 base oil is one of the grades related to the needs of lubricant-producing industries. Supplying this product for manufacturing units requires attention to technical specifications, required quality, and delivery conditions so that the selected base oil matches the production requirements and final application.

For manufacturers of engine oil, gear oil, industrial lubricants, and grease, choosing the right base oil grade is one of the important steps in planning raw material supply. Reviewing technical specifications, receiving batch information, and coordinating order volume can make the purchasing process more accurate and reliable.

If you need more information for bulk purchase or supply of SN500 base oil, you can contact the experts at Karen Palayesh Pishran Novin and inquire about product specifications, supply capacity, packaging, and delivery conditions.