How to install the polishing head of a variable-speed polishing machine correctly

The effect and safety of polishing operations start with the correct installation of the polishing head. A properly installed polishing head not only ensures a uniform and beautiful polishing effect but also serves as an important guarantee for operational safety. The following are the detailed steps and precautions for installing the polishing head of the variable-speed polishing machine, which will help you complete the installation perfectly every time.

Preparations before installation
Before starting the installation, please ensure that the polishing machine is completely powered off. It’s best to unplug the power cord rather than just turn off the switch. Prepare a clean soft cloth for cleaning the installation interface. Check whether the new polishing cotton or pad is intact and undamaged, and confirm that its specifications are compatible with your polishing machine. At the same time, prepare any special tools required for installation, which are usually provided with the polishing machine.

Step-by-step Installation Guide
First, find the threaded interface at the end of the polishing machine’s shaft. Thoroughly clean this area with a soft cloth to remove any dust, oil stains or residues from the previous polishing. If a self-adhesive polishing head is used, the protective film should be removed first. Align the center hole of the polishing head with the end of the shaft and stick it flat. Then, press it evenly with your palm to ensure a firm bond.

For the threaded installation type of polishing head, the threaded hole at the center of the polishing head should be aligned with the thread at the shaft end, then rotate counterclockwise until resistance is felt, and then tighten it clockwise. Please note that some models may adopt a reverse thread design, which requires a clockwise rotation to tighten. If you are not sure, please refer to the instructions of your device.

For the models fixed by the clamping plate type, first place the polishing head at the end of the shaft, then put on the pressure plate, and finally tighten the center nut by hand. At this time, it is not advisable to over-tighten with tools to avoid damaging the threads.

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Inspection items after installation
Do not start working immediately after the installation is completed. First, rotate the polishing head by hand to check if there is any friction or interference with other components. Start the polishing machine at the lowest speed and observe whether the polishing head rotates smoothly and if there is any obvious jumping. If abnormal vibration is detected, the machine should be stopped immediately and reinstalled.

Check the contact Angle between the polishing head and the polishing surface to ensure that the correct working Angle can be maintained after installation. For larger polishing heads, it is also necessary to confirm that their diameters do not exceed the safe operation range of the polishing machine.

Safety Precautions
During the entire installation process, it is essential to ensure that the polishing machine is completely powered off. Do not wear gloves during installation to prevent fibers from being drawn into the rotating parts. Long hair should be tied up and loose clothes need to be neatly arranged. After installation is completed, remember to install the protective cover. This is a crucial safety step that many users tend to overlook.

If any signs of damage or wear are found on any components during the installation process, they should be replaced immediately and should not be used forcefully. Regularly check the tightness of the fixing device, especially after long-term use, as vibration may cause loosening.

Daily maintenance suggestions
After each use, the installation interface of the polishing head should be cleaned in time. When not in use for a long time, it is recommended to remove the polishing head and store it separately. Regularly check whether the threads are in good condition. If there is any wear, deal with it in time. When storing the polishing head, avoid heavy pressure or bending and keep its original shape.

Remember, correct installation is not only the key to ensuring the polishing effect, but also the first line of defense for safe operation. Spending a few minutes ensuring a perfect installation is far more time-saving and labor-saving than dealing with problems afterwards. Mastering the correct installation method will make your polishing work more effortless and the result more satisfactory.

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Post time: Aug-27-2025