Common faults and repairs of sanding machines

    1. Introduction Sanding machine is a commonly used processing equipment, widely used in surface treatment of metal, wood, stone and other materials. However, due to long-term use and improper operation, sanding machines often experience some malfunctions, affecting the normal operation of the equipment. In order to help users troubleshoot in time, this article summarizes common faults of sanding machines and their solutions.

2. Circuit failure

Circuit failure is one of the most common problems with sanders. It may cause the sander to not work or adjust the speed properly. Here’s how to deal with circuit faults:

1. Check whether the power line is in good contact and whether it is damaged;
2. Check whether the switch is normal and whether the switch is damaged due to collision;
3. Check whether the circuit board is burned out or which component is burned out;
4. Check whether the motor is normal and whether the motor has burned out the fuse due to overload.

3. Motor failureThe motor is the core component of the sander. Once there is a problem, the sander cannot be used. Possible causes of motor failure include mechanical failure, electrical failure, excessive load, etc. Here’s how to deal with motor failure:
4. Check whether the motor is overheated and whether it needs to be cleaned or replaced;
5. Check whether the transmission system is normal and whether the transmission belt is worn;
6. Check whether the motor and rotor are normal and whether the rotating shaft is excessively worn;
7. Check whether the forward and reverse reversers of the motor are normal and whether the forward and reverse switches are damaged;

4. Grinding tool failure

The abrasive tool is one of the core components of the sander. Once a problem occurs, it will not only affect the sanding quality, but may also cause danger. Possible causes of abrasive tool failure include material loss, unbalanced abrasive tools, improper installation of abrasive tools, etc. The method to deal with grinding tool failure is as follows:

1. Check whether the grinding tool is excessively worn or broken;
2. Check whether the grinding tool is installed in the correct position;
3. Check whether the grinding tool is balanced. If it is not balanced, it needs to be reinstalled or readjusted;
4. Check whether the grinding tool is clogged.

5. Other faults

In addition to the above three common faults, there are some other faults that need attention. For example, the contact between the sanding head and the workpiece is poor, the machine current is too large, the magnet fails, etc. These faults need to be checked in time to avoid affecting the service life of the sander.

6. Conclusion

The above is a summary of common faults and repair methods of sanding machines. When using a sander, you need to pay attention to some basic care and maintenance measures, which can reduce the occurrence of failures and extend the life of the equipment. Hopefully this article will provide some useful help to sander users.