If the disc polishing brush in your hand encounters the following three situations, then you need to be vigilant.

The brush wire density is low. Some individual brush manufacturers, in order to save the cost of using wire for disc polishing brushes, have fewer bristles per hole or insufficient brush hole density, resulting in sparse overall bristles on the brush rollers, soft and weak bristle surfaces, and low efficiency during grinding. Users are unaware of this, so they increase back pressure or speed to increase efficiency, causing the brush wires to work overload and greatly reduce their lifespan.

Brush silk and plant hair slanted. When pressing U-shaped metal strips, special attention should be paid to whether the brush wire is smooth. If there is cross tilting, the resistance of the reverse brush wire during the operation of the brush roller will increase significantly, making it easy to break the wire and greatly reducing the service life of the disc polishing brush.

Brushing and trimming too long. When the length of the brush wire is too long, it is not the cutting surface of the brush wire that is working, but the side of the brush wire that is working. More importantly, the amplitude (angle) of each wire swing increases significantly. At 800-2500 rpm, the stress and fatigue coefficient of the brush wire base increase exponentially, causing the abrasive brush wire to break and the disc polishing brush to deform.

If any of the above three types of disc polishing brushes appear, it is time to maintain them properly. Otherwise, it may affect the lifespan and use of your brush, and even the quality of work.