High material moisture content, uneven feed rate, loose V-belt, improper sand discharge adjustment, aging wearing parts, and unstable voltage—six key reasons explain sand making machine blockage problems, helping you achieve worry-free, efficient production.

The main causes of blockage in large-scale manufactured sand and gravel production lines are:

1. Mismatch between the processed material and the sand making machine

Material with high moisture content tends to adhere to the sand making machine. Heating the material at the inlet can reduce the moisture content. Excessively hard or oversized material can easily cause blockage in the sand making machine. Therefore, it should be sized appropriately before feeding the material into the sand making machine to ensure proper operation.

2. Mismatch between the feed rate and processing speed of the sand making machine

If the feed rate is too fast and the crushing speed cannot keep up, the material may accumulate due to inability to process it in a timely manner, eventually causing the machine to clog. Furthermore, prolonged overload can seriously damage the motor. Therefore, users must ensure uniform and continuous feed to effectively prevent equipment blockage.

3. Improper tightness of the sand making machine's V-belt

When a sand making machine uses a V-belt to drive a sheave to crush material, belt slippage may occur. In particular, if the V-belt is loose, the sheave cannot operate properly, preventing effective material crushing. This can lead to material accumulation within the sand making machine and cause blockage.

4. Improper sand output adjustment

During the sand production process, if the sand output speed is too slow, subsequent crushed material can accumulate at the sand outlet (possibly in the crushing chamber), causing blockage in the sand making machine.

5. Failure to regularly maintain wearing parts

Severely damaged wearing parts prevent the material entering the sand making machine from being fully crushed. Therefore, users should promptly replace these wearing parts.

6. Unstable voltage in the sand making machine

If the voltage is too low or unstable, the actual capacity of the sand making machine will be lower than the theoretical capacity. If the feed rate is not adjusted accordingly, blockage is likely to occur. Therefore, the voltage should be kept as constant as possible while the sand making equipment is operating.