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Hydraulic oil is a type of industrial oil specifically formulated for use in hydraulic systems. It is typically made from mineral oil or synthetic oil, often enhanced with additives to improve performance characteristics such as viscosity, lubrication, and thermal stability. Hydraulic oils transmit power through hydraulic machinery, lubricate moving parts, and help in cooling the system.
| Viscosity grade | ISO VG 32 to ISO VG 68 |
| Base oil type | Mineral oil or synthetic oil |
| Additives | Anti-wear, anti-oxidation, and corrosion inhibitors |
| Flash point | Typically above 200°C |
| Pour point | Ranges from -30°C to -20°C |
When selecting hydraulic oil, consider the viscosity grade suitable for your operating temperature and system requirements. It's also important to specify the base oil type, whether mineral or synthetic, and any necessary additive packages for enhanced performance. Certifications such as ISO or specific industry standards may be relevant, so ensure to inquire about these when requesting a quote.
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Mineral oil is derived from crude oil, while synthetic oil is chemically engineered for improved performance and stability.
It typically depends on the system and usage, but every 1,000 to 2,000 operating hours is a common guideline.
Mixing different brands is not recommended unless they are compatible, as it can affect performance.
Signs include discoloration, unusual smells, and the presence of particulates or foam.
Some hydraulic oils are formulated to be biodegradable; check the product specifications for this feature.
Hydraulic oils are typically suitable for a wide temperature range, from -30°C to over 100°C depending on the formulation.