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Anonymous users2024-02-07Type. HH hydraulic oil is a mineral oil that does not contain any additives. Although this oil is included in the classification, it is no longer used in hydraulic systems. Because this oil has poor stability and is easy to foam, it has a short service life in hydraulic equipment.
Type. HL hydraulic fluids are made from neutral base oils with a high refining depth, plus antioxidant and anti-rust additives. HL hydraulic fluids can be divided into six grades according to the kinematic viscosity of 40.
Type. Anti-wear hydraulic oil (HM hydraulic oil) is developed from the anti-rust and anti-oxidation hydraulic oil, it has alkaline high zinc, alkaline low zinc, neutral high zinc type and ash-free type and other series of products, they are all according to 40'cKinematic viscosity is divided into four grades.
HR hydraulic oil is the hydraulic oil used in low and medium pressure hydraulic systems with large changes in ambient temperature. The oil has good anti-rust and anti-oxidation properties, and on this basis, a viscosity index improver is added to make the oil have good viscosity and temperature characteristics. Due to the small amount of this kind of oil, it has not been vigorously developed, so it will not be described in detail here.
HG hydraulic oil was originally 32g and 68g in ordinary hydraulic oil, which was once called hydraulic guide oil, which is a type of hydraulic oil composed of oily agent or friction reducer on the basis of hm hydraulic oil. The oil not only has excellent anti-rust, anti-oxidation and anti-wear properties, but also has excellent anti-stick-slip properties.
This product is mainly suitable for various machine tool hydraulic and guide rail lubrication systems or machine tool guide rail lubrication systems and machine tool hydraulic systems. At low speeds, the anti-climb effect is good. Hydraulic guide oil belongs to this category of products.
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Anonymous users2024-02-062.How is the marking of hydraulic oil in China regulated?
Hello, the labeling regulations of China's hydraulic oil are based on the national standard "GB Viscosity Classification, Marking and Flow Temperature Range for Hydraulic Transmission". This standard specifies the classification, numbering, and flow temperature range of hydraulic fluids. The specific regulations are as follows:
Hydraulic oil base marking: - H: Hydraulic oil - L:
Light Load- m: Medium Load- H: Heavy Duty Hydraulic Fluid Viscosity Classification:
10: Viscosity grade 10-15: Viscosity grade 15-22:
Viscosity grade 22- 32: Viscosity grade 32- 46: Viscosity grade 46- 68:
Viscosity grade 68- 100: Viscosity grade 100- 150: Viscosity grade 150 will also have a letter indicating the flow temperature range after the designation, such as:
VG32 indicates that hydraulic fluids with viscosity grade 32 can be used in the range of -30 to +75. In general, the marking and regulation of the hydraulic oil bird book is to better match the needs of different machines to ensure the normal operation and safety of the equipment. Hope it can help you!
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