What fuel is added to hydraulic cars? A comprehensive analysis of hydraulic oil selection guide
As an important equipment in modern logistics and industrial handling, the normal operation of the hydraulic system of its core components is inseparable from suitable hydraulic oil. However, many users are confused about the choice of hydraulic oil. This article will combine popular topics and hot contents on the entire network for the past 10 days to explain in detail what fuel should be added to hydraulic vehicles, and provide structured data for reference.
1. The function of hydraulic oil in hydraulic vehicles
Hydraulic oil plays a crucial role in hydraulic systems, mainly including the following functions:
1.Transmit power: Hydraulic oil acts as an energy transfer medium to transmit power from the pump to the actuator (such as a hydraulic cylinder).
2.Lubrication effect: Reduce friction and wear of internal parts of hydraulic system.
3.Cooling: Take away the heat generated by the system through circulation to prevent overheating.
4.Sealing effect: Form a seal between the hydraulic components to prevent leakage.
5.Anti-rust and corrosion: Protect metal parts from corrosion.
2. Types and applicable scenarios of hydraulic oil
According to the composition and performance, hydraulic oil is mainly divided into the following categories:
| Hydraulic oil type | Main features | Applicable scenarios |
|---|---|---|
| Mineral oil type hydraulic oil | Low price, average stability, suitable for ordinary working conditions | Conventional hydraulic vehicles, medium and low pressure systems |
| Anti-wear hydraulic oil (HM) | Add antiwear agent to extend the life of the equipment | High-pressure hydraulic system, heavy-load hydraulic vehicle |
| Synthetic hydraulic oil | Good high temperature stability and long service life | Hydraulic vehicles in high temperature or extreme environments |
| Biodegradable hydraulic oil | Environmentally friendly, biodegradable | Places with high environmental requirements |
3. How to choose the right hydraulic oil?
When selecting hydraulic oil, the following factors need to be considered:
1.Equipment manufacturer recommendation: Please refer to the recommended oil model in the hydraulic vehicle manual.
2.Operating temperature: High viscosity index hydraulic oil is required for high temperature environments.
3.Load situation: It is recommended to use anti-wear hydraulic oil (HM) for heavy-duty hydraulic vehicles.
4.Environmental Requirements: In areas with easy leakage or environmentally friendly sensitive areas, biodegradable hydraulic oil can be selected.
4. Comparison of popular hydraulic oil brands and performance
According to recent market research, the following are the performance comparisons of several popular hydraulic oil brands:
| brand | model | Viscosity grade | Applicable temperature range | Price range (yuan/liter) |
|---|---|---|---|---|
| Shell | Tellus S2 V | ISO VG 32/46/68 | -20℃ ~ 80℃ | 30-50 |
| Mobil | DTE 10 Excel | ISO VG 46 | -15℃ ~ 90℃ | 40-60 |
| Great Wall | L-HM 46 | ISO VG 46 | -10℃ ~ 70℃ | 20-35 |
| Castrol | Hyspin AWS | ISO VG 32/46 | -30℃ ~ 100℃ | 35-55 |
5. Hydraulic oil replacement cycle and precautions
1.Replacement cycle: It is generally recommended to replace it every 2,000 working hours or once a year, and the specific details are subject to the equipment instructions.
2.Oil change steps:
- Empty old oil
- Clean the fuel tank and filter element
- Add new oil to the specified liquid level
3.Things to note:
- Avoid mixing hydraulic oil of different brands or models
- Regularly check oil level and oil quality
- Emulsification or contamination should be replaced in time
6. FAQs
Q: Can hydraulic vehicles be added with engine oil?
A: Not recommended. The performance of engine oil and hydraulic oil is different, and mixing it may cause system failure.
Q: How to determine whether hydraulic oil needs to be replaced?
A: If the oil becomes black, there are impurities or the viscosity changes significantly, it should be replaced in time.
Q: How to choose hydraulic oil in low temperature environments?
A: Choose hydraulic oil with low pour point and high viscosity index, such as ISO VG 32.
Summarize
Choosing the right hydraulic oil is crucial to the performance and life of the hydraulic vehicle. It is recommended to consider comprehensively according to equipment requirements, working environment and load conditions, and maintain them regularly. Through the structured data in this article, I believe you can have a clearer understanding of the oil use choices of hydraulic vehicles!
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