Regular maintenance and extended service life of the cutter head can be approached from aspects such as cleaning frequency, tool selection, operation points, and usage habits. The following is a detailed analysis:
Cleaning frequency and tool selection
Daily cleaning: It is recommended to use a coffee grinder cleaning sheet for cleaning every half month or one month to remove coffee residue and oil stains on the surface of the blade to prevent lumps from affecting the grinding effect.
Deep cleaning: After every 10,000 cups of coffee, the knife disc should be removed for thorough cleaning. A combination of a handheld vacuum cleaner and a soft-bristled small brush can be used. The vacuum cleaner is used to quickly suck up obvious residual powder, while the small brush gently sweeps the grooves along the threaded direction to prevent powder from depositing in hard-to-reach areas.
Regular inspection and replacement: After every 30,000 to 40,000 cups of coffee, it is necessary to consider replacing the cutter head. The condition of the cutter head can be identified through daily debugging and tasting. A dull cutter head will produce more fine powder, affecting the particle size distribution. At this time, it should be replaced in a timely manner.
Key points of operation and usage habits
Key points of operation
When cleaning the cutter head, it is recommended to wear anti-static gloves to prevent static electricity from attracting fine powder. At the same time, keep the coffee grinder at a vertical Angle to prevent the powder lumps from sliding into the interior of the machine.
When disassembling and installing the cutter head, the cross-locking method can be adopted. That is, first pre-tighten the cutter head screws one by one in diagonal sequence, and then calibrate the overall torque to ensure that the flatness error of the cutter head is less than 0.1mm. Use an electric screwdriver in conjunction with a torque sensor to control the locking torque of a single screw within the range of 0.3 to 0.5N·m, to prevent over-tightening which may cause the bearing to seize or loosen, leading to resonance.
Usage habits
Avoid exposing the coffee beans to moisture to prevent the knife disc from rusting.
It is necessary to choose the grinding degree and the cutter head speed reasonably. High-speed grinding will accelerate the wear of the cutter head. At the same time, pay attention to the density of the cooked beans. Beans with a higher density may exert greater pressure on the knife disc.
Maintain the product and its storage environment
Maintenance products: You can use a dedicated coffee grinder to clean the products, such as URNEX GRINDZ. It is a fully natural, gluten-free, organic and tasteless coffee bean-shaped tablet composed of grains and medical-grade binders, and is edible. Grind it in a coffee grinder, which can quickly and effectively remove the residual powder and coffee oil stains on the blade, and extend the service life of the blade.
Storage environment: The cutter head should be stored in a dry place to prevent metal rust caused by moisture. If the cutter head rusts due to improper storage, for the parts with less rust, a cotton cloth dipped in engine oil can be used to wipe them clean.