1. outside temperature and contaminants
如果环境中有大量的粉尘和高湿度、高温度，会促进液压油的氧化或降解利用，增加液压油的粘度、残渣和酸性物质，对牛羊舔砖液压机产生腐蚀作用，设The spare oil change period is relatively short;
Raw materials for pressing of 2. equipment
同一台四柱液压机压制不同的原材料，换油周期也不同，经常加工铸铁件的四柱液压机换油周期比加工普通金属材料的换油周期短，切削后的铸铁粉末容Easy to pollute the oil, accelerate the aging and deterioration of hydraulic oil;
Tightness of 3. equipment
Poor sealing, air pollution, processed metal chips and emulsion are easy to invade the hydraulic system, accelerate the wear of the four-column hydraulic press, and shorten the oil change cycle;
4. equipment running time
Assembly line or three-shift system, long running time, short oil change time, if single shift or inefficient, long oil change cycle;
5. tank size
The oil change cycle of the cattle and sheep licking brick hydraulic press depends on the amount of oil injected into the oil tank, because the less oil injected, the higher the circulation speed of the hydraulic oil, the shorter the stay time in the oil tank, the poor heat dissipation conditions, and the high oil temperature;
6. new or overhauled equipment
The processing surface of the newly purchased four-column hydraulic press and the new zero-fit friction surface are rough, the actual contact area is small, the pressure per unit contact area is large, the wear rate and wear volume are large within a period of time, and it is cleaned every three months after operation.Wash and change the oil once, and then clean and change the oil according to the normal regulations;
7. hydraulic oil quality
The better the quality of the hydraulic oil, the longer the service life, and the longer the oil change cycle, the hydraulic oil replacement cycle is generally 9-12 months.