What hydraulic oil to use in summer: analysis of hot topics on the Internet and selection guide
Recently, discussions on the selection of hydraulic oil in summer have become increasingly popular across the Internet, especially involving core issues such as performance stability, viscosity changes, and equipment protection in high-temperature environments. This article will combine the popular data of the past 10 days to provide you with structured analysis and purchasing suggestions.
1. Inventory of hot topics across the Internet (last 10 days)
| Ranking | Topic keywords | Search volume increase | Associated device types |
|---|---|---|---|
| 1 | High temperature hydraulic oil viscosity | +320% | Engineering machinery/injection molding machine |
| 2 | Hydraulic oil oxidation protection | +215% | agricultural machinery |
| 3 | Environmentally friendly hydraulic oil | +180% | food processing equipment |
| 4 | Synthetic oil vs mineral oil | +150% | Wind power hydraulic system |
2. Core performance indicators of hydraulic oil in summer
| Performance parameters | summer standard | Test method | FAQ |
|---|---|---|---|
| Viscosity index VI | ≥120 | ASTM D2270 | High temperature thinning leads to leakage |
| flash point | ≥220℃ | ASTM D92 | High temperature volatilization loss |
| Oxidation stability | ≤1.5mgKOH/g | ASTM D943 | Accelerated sludge formation |
3. Comparison of mainstream hydraulic oil types
| Oil type | Applicable temperature range | summer advantage | typical brand |
|---|---|---|---|
| HM anti-wear hydraulic oil | -15℃~80℃ | Affordable | Shell Tellus |
| HV high viscosity index oil | -30℃~100℃ | Strong adaptability to temperature differences | Mobil DTE 25 |
| Fully synthetic hydraulic oil | -40℃~120℃ | Extra long life | Great Wall Accent |
4. Suggestions on oil selection for equipment scenarios
1.Construction machinery: Prioritize the high viscosity index oil of ISO VG46~68, pay special attention to the oil temperature monitoring of the excavator hydraulic system during continuous operation.
2.Injection molding machine: It is recommended to use synthetic oil containing antioxidant additives to avoid carbonization of oil in high temperature areas of the mold.
3.agricultural equipment: Considering the anti-rust and anti-emulsification performance, open-air equipment such as harvesters need to pay attention to the risk of rainwater intrusion.
5. Key points for hydraulic system maintenance in summer
• Check the oil color change every 250 hours (new oil is light yellow → deteriorated dark brown)
• Keep the tank breather open to prevent condensation
• Spare oil should be stored in a cool place away from direct sunlight
• Clean or replace the filter element regularly, impurities are more likely to accumulate in high temperature environments
6. Summary of opinions from industry experts
The latest report from the China Hydraulic and Pneumatic Seals Industry Association points out that 72% of hydraulic system failures in summer are directly related to improper oil selection. It is recommended that enterprises establish a seasonal oil change system, paying special attention to the hydraulic oilshear stabilityandheat transfer efficiencyTwo key indicators.
From the above structured analysis, it can be seen that the selection of hydraulic oil in summer requires comprehensive consideration of equipment operating conditions, ambient temperature and oil characteristics. It is recommended that users refer to the equipment manual requirements and make scientific selection based on the performance parameter table provided in this article to ensure the stable operation of the hydraulic system in high temperature seasons.
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