珠海香洲狮山-湾仔壳牌液压油-导轨油经销一般的液压油有32号46号68号100号等。这里的数字表示粘度，所谓粘度是指衡量油品内摩擦力大小的一个指标，68号液压油和46号液压油的油粘度等级分别为68和46，根据品牌的不同相对应的闪点也不相同。
这要看你的设备的工作状况，哪种更合适。46，68只是抗磨液压油中粘度等级不同的两个品牌，比HM46，HM68大。选择哪种粘度等级主要取决于系统启动时的工作温度和所用泵的类型。选择合适的粘度很重要。液压油粘度过高，液压系统能量损失大，系统效率低，油泵吸油困难。粘度太小，油泵内泄漏量大，容积损失增大，也降低了系统效率。良好的抗磨液压油，粘度指数高，高温性能好，低温易流动，能耗低。经济耐用，长期使用不产生油泥，有效保持液压系统高度清洁。质量要求:汽车、工程机械等液压系统使用液压油作为工作介质。在这种液压系统中，油的流量不大但压力很高，所以称为静液汪埋压传动。液压油的质量将极大地影响液压系统的工作可靠性和使用寿命。通常，液压油的质量要求如下:1)合适的粘度和良好的粘温性能，保证在工作温度变化的情况下，准确灵敏地传递动力，保证液压空陵运元件的正常润滑。2)具有良斗梁好的防锈和抗氧化稳定性，在高温高压下不易氧化变质，使用寿命长。3)具有良好的抗泡沫性，使油液在机械不断搅拌的工况下产生的泡沫易于消失，以稳定动力传递，避免液压油加速氧化。It depends on the working condition of your equipment, which is more suitable. 46,68 is only two brands of antiwear hydraulic oil with different viscosity grade, which is bigger than HM46, HM68. Which viscosity class to choose depends mainly on the system start-up temperature and the type of pump used. It is important to choose the right viscosity. The hydraulic oil viscosity is too high, the hydraulic system energy loss is big, the system efficiency is low, the oil pump absorbs the oil difficultly. Viscosity is too small, pump leakage, volume loss increases, but also reduce the efficiency of the system. Good anti-wear hydraulic oil, high viscosity index, high temperature performance, low temperature easy flow, low energy consumption. Economic and durable, long-term use does not produce sludge, effectively maintain the hydraulic system is highly clean. Quality Requirements: automobile, construction machinery and other hydraulic systems using hydraulic oil as the working medium. In this hydraulic system, the flow of oil is not large but the pressure is very high, so it is called hydrostatic submerged pressure transmission. The quality of hydraulic oil will greatly affect the reliability and service life of hydraulic system. Usually, the quality requirements of hydraulic oil are as follows: 1) proper viscosity and good viscosity-temperature performance, to ensure that the working temperature changes in the case of accurate and sensitive transmission of power, to ensure the normal lubrication of hydraulic components. 2) good anti-rust and anti-oxidation stability, high temperature and high pressure is not easy to oxidize deterioration, long service life. 3) it has good anti-foamability, which makes the foams easily disappear under the condition of continuous mechanical agitation, so as to stabilize power transmission and avoid accelerating oxidation of hydraulic oil.