What hydraulic oil does Doosan excavator use? Comprehensive analysis and selection guide
In the field of construction machinery, the stable operation of hydraulic systems is directly related to equipment performance and service life. As a well-known brand, Doosan excavators have clear requirements for the selection of hydraulic oil. This article will provide you with a detailed analysis of Doosan excavator hydraulic oil selection standards, common problems and maintenance suggestions based on recent industry hot spots.
1. Doosan excavator hydraulic oil selection standards
Doosan officially recommends the use of hydraulic oil that meets the following standards, which may vary slightly depending on the model:
| Model series | Viscosity grade | API quality level | Recommended brands |
|---|---|---|---|
| DX series | AW46/68 | GH-4 and above | Doosan Original/Shell/Mobil |
| DH series | AW68 | GL-5 | Castrol/Total |
| small excavator | AW32/46 | GH-4 | Great Wall/Kunlun |
2. Recent industry hot spots and hydraulic oil technology development
1.Impact of new environmental protection regulations:In the third quarter of 2023, many places will introduce new emission regulations for non-road machinery, prompting the development of hydraulic oils in the direction of low sulfur and low ash content.
2.Popularity of synthetic oils:Leading manufacturers have successively launched fully synthetic hydraulic oil, which can extend the oil change cycle by 50% compared to mineral oil, and has become a hot topic in equipment forums recently.
3.Intelligent monitoring technology:Data from JD Industrial Products and other platforms show that the purchase volume of smart equipment with oil quality sensors increased by 120% year-on-year.
3. Answers to frequently asked questions about hydraulic oil selection
| question | Professional answers |
|---|---|
| Can oils of different viscosities be mixed? | Mixing is strictly prohibited as it may cause problems such as increased foaming and accelerated oxidation. |
| How to tell if oil has deteriorated? | Observe the color (blackening), viscosity (astringent feel), and smell (burnt smell) |
| How to choose oil in extreme climates? | It is recommended to use AW32 below -15℃, and AW68 in high temperature areas. |
4. Maintenance suggestions
1.Replacement cycle:It is recommended to replace it every 2000 hours or every year under normal working conditions. In dusty environments, it should be shortened to 1500 hours.
2.Synchronous replacement of filter elements:The hydraulic oil filter element must be replaced every time the oil is changed. Recent industry reports show that 70% of hydraulic failures are caused by filter element problems.
3.Oil storage:The shelf life of unopened oil is 3 years, and it needs to be stored away from light. Pay attention to moisture-proofing due to recent heavy rains in many places.
5. Performance comparison of mainstream hydraulic oils in the market
| brand | series | Flash point(℃) | Pour point(℃) | Reference price (yuan/barrel) |
|---|---|---|---|---|
| Shell | Tellus S4MX | 224 | -39 | 850-920 |
| Mobil | DTE 10 Excel | 230 | -36 | 880-950 |
| Great Wall | Anti-wear hydraulic oil L-HM | 210 | -33 | 650-720 |
Conclusion:Choosing the right hydraulic oil can not only ensure the stable operation of Doosan excavators, but also significantly reduce maintenance costs. It is recommended that users select oil products according to the requirements of the equipment manual, combined with specific working conditions and climatic conditions, and conduct regular oil testing. Recently, many manufacturers have launched trade-in activities. You can follow official channels to get the latest service policies.
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