The internal structure of automatic coffee machines is compact with frequent movements, making the lubrication environment "unfavorable". High-frequency moving parts operate repeatedly every day, and ordinary grease is prone to loss and oil slinging, resulting in a short lubrication cycle.
Secondly, water vapor coexists with coffee grounds. The mixture of high-temperature water vapor, coffee oil, and dust is likely to cause emulsification and deterioration of lubricating grease, forming sludge, which leads to jamming and abnormal noise.
More importantly, there are food safety requirements. If non-food-grade grease migrates, it may affect the coffee flavor and even pose compliance risks.
What are the common lubrication points of coffee machines?
Guide rails and sliders of the brewing unit
Gearbox and reduction transmission parts
Bearings of the tamping and reset mechanism
Rotating shaft of the slag discharge mechanism
Rubber parts such as seals and O-rings
These positions have requirements for lubricating grease that go beyond mere "lubrication"—it must be stable, water-resistant, and low-migration.
Why do coffee machines need "special lubricants"? Compared with general-purpose lubricants, lubricants suitable for automatic coffee machines must meet food-grade safety standards (such as NSF H1) when selecting grease. They should also have good water resistance and coffee oil resistance, compatibility with materials like plastics, rubber, and metals, and support long-cycle lubrication to reduce maintenance frequency.
Baoxing Lubricants has long focused on lubrication applications in the home appliance industry. Based on the structure and working conditions of automatic coffee machines, it can provide targeted lubricating grease solutions and support sample testing, helping equipment achieve more stable and reliable long-term operation.
