HL hydraulic oil is mainly used to lubricate the bearing box, low-pressure circulation system or similar mechanical equipment circulation system of various machine tools with no special requirements for lubricating oil and ambient temperature above 0℃. Its service life can be more than doubled than that of mechanical oil. This product has good rubber sealing adaptability, and the highest service temperature is 80℃.
2. Anti-wear hydraulic oil (HM hydraulic oil) is developed from anti-rust and anti-oxygen hydraulic oil. It has a series of products, such as alkaline high zinc, alkaline low zinc, neutral high zinc and ashless type. They are all divided into four brands according to the kinematic viscosity of 40'C: 22, 32, 46 and 68.
Applicable to:
(l) Anti-wear hydraulic oil is mainly used in heavy-duty, medium-pressure and high-pressure vane pumps, piston pumps and gear pumps, J-eye YB-D25 vane pumps, PF 15 piston pumps, CBN-E306 gear pumps, YB-E80/40 duplex pumps and other hydraulic systems.
(2) Hydraulic system of medium and high pressure construction machinery, imported equipment and vehicles. Such as computer numerical control machine tools, tunnel boring machines, crawler cranes, hydraulic backhoe excavators and coal cutters.
(3) It is not only suitable for the medium and high pressure hydraulic systems of various hydraulic pumps, but also suitable for the lubrication of medium-load industrial gears (except worm gears and hyperbola gears). The ambient temperature used is-10℃ ~ 40℃. This product has good adaptability with NBR.
HR hydraulic oil is used in medium and low pressure hydraulic systems with large environmental temperature changes. The oil has good anti-rust and anti-oxidation properties, and on this basis, viscosity index improver is added to make the oil have better viscosity-temperature characteristics. This kind of oil has not been developed vigorously so far because of its small dosage.
HG hydraulic oil used to be 32G and 68G in ordinary hydraulic oil, and was once called hydraulic guide rail oil. This product is a hydraulic oil made by adding oiliness agent or antiwear agent to HM hydraulic oil. The oil not only has excellent rust prevention, oxidation resistance and wear resistance, but also has excellent stick-slip resistance. This product is mainly suitable for various lubrication systems of machine tool hydraulic and guide rail, or machine tool guide rail lubrication system and machine tool hydraulic system. Under the condition of low-speed inertia, the hydraulic guide rail oil with good anti-climbing effect belongs to this kind of product.
Jin Runna Lubricant Additives Division answered.