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Hydraulic oil
Hydraulic oil
This product is formulated from the neutral oil components and the additives. This kind of neutral oil component is obtained by distillation of crude oil under normal pressure and vacuum ,and then it is treated by solvent dewaxing . solvent refining and clay enrichment ,The additive is composed of additives such as antioxidant , rust and defoaming.
The product is used for machine tools and other equipment low-pressure gear pump system, but also for bearing or gear lubrication.
First ,the quality indicators
| Items | Quality Index | Test method | |||||
| Variety | L-HL | ||||||
| Viscosity grade（according to GB3141） | 15 | 22 | 32 | 46 | 68 | 100 | - |
| Kinematic viscosity/(mm2/s) 0℃ no greater than 40℃ |
1400 13.5-16.5 |
300 19.8-24.2 |
420 28.8-35.2 |
780 41.4-50.6 |
1400 61.2-74.8 |
2560 90.0-110 |
GB/T265 |
| Viscosity index not less than | 95 | 95 | 95 | 95 | 95 | 90 | GB/T2541 |
| Flash point（opening）/℃ not lower than | 140 | 140 | 160 | 180 | 180 | 180 | GB/T3536 |
| Pour point/℃not higher than | -12 | -9 | -6 | -6 | -6 | -6 | GB/T3535 |
| Liquid phase corrosion test（distilled water) | No rust | GB/T11143 | |||||
| Corrosion ( copper、100℃、3h)/grade not greater than | 1 | GB/T5096 | |||||
| Rubber seal adaptability index not greater than | 14 | 12 | 10 | 9 | 7 | 6 | GB/T0305 |
| Air release value（50℃）min not greater than | 5 | 7 | 7 | 10 | 12 | 15 | GB/T0308 |
| Foam（Foam Tendency /Foam Stability)/（mL/mL) 24℃ not greater than 93℃ not greater than Rear24℃ not greater than |
150/10 150/10 150/10 |
GB/T12579 | |||||
| Anti-emulsification（40-37-3mL)/min 54℃ not greater than 82℃ not greater than |
30 - |
40 |
- 30 |
GB/T7305 | |||
| Oxidation stability: a.acid value of 2.0mgKOH/g time3）h not less than b.Rotating oxygen bomb （150℃。 pressure drop 175KPa)/min |
1000 report |
GB/T12581 SH/T0193 |
|||||
| Ash/% | report | GB/T508 | |||||
| Neutral value/(mgKOH/g) | report | GB/T4945 | |||||
| Mechanical impurities/% not greater than | 0.005 | GB/T511 | |||||
| Moisture/% not greater than | trace | GB/T260 | |||||
| Chroma/number | report | GB/T6540 | |||||
Second,note:
The process of storage and use to keep the oil clean ,to avoid impurities and moisture mixed to prevent oil deterioration.
Third, the packaging:
200 liter barrels
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