How to troubleshoot common shot blasting machine faults ?

6th April 2026

Wheelblast equipment faults cause production delays; master troubleshooting to fix shot blasting equipment issues quickly.

This guide details how to troubleshoot common shot blasting equipment faults (wheel not working, poor abrasive recovery) for stable wheelblast equipment operation.

Learn step-by-step troubleshooting for wheelblast equipment and shot blasting equipment below.

Preparatory Work Before Troubleshooting Wheelblast Equipment and Shot Blasting Equipment

Before troubleshooting common faults of shot blasting equipment (such as the shot blasting wheel is not working and poor abrasive recovery), it is crucial to do a good job of preparatory work to ensure the safety of operators and avoid secondary damage to wheelblast equipment.

Cut off the power supply of the shot blasting equipment and lock the power switch to prevent accidental startup during troubleshooting, which is a basic safety requirement for maintaining wheelblast equipment.
Wear professional protective equipment, such as gloves, goggles, and dust masks, to avoid injury from residual abrasive or mechanical parts of the shot blasting equipment.
Check the overall state of the wheelblast equipment and shot blasting equipment, including whether the external connections are loose, whether there is abnormal noise or oil leakage, and whether the abrasive storage is sufficient.
Prepare common tools (such as screwdrivers, wrenches, and multimeters) to facilitate disassembly and inspection of the shot blasting equipment. Doing a good job of preparatory work not only improves the efficiency of troubleshooting wheelblast equipment but also ensures the safety of the operation, laying a foundation for quickly solving the faults of shot blasting equipment.

Shot blaster

Troubleshooting Steps for Wheelblast Equipment: Shot Blasting Wheel Not Working

The shot blasting wheel not working is a common fault of wheelblast equipment and shot blasting equipment, which directly affects the normal operation of the entire production line. When troubleshooting this fault, it is necessary to follow the principle of “from simple to complex” to avoid blind disassembly of the shot blasting equipment.

Check the power supply system of the wheelblast equipment: confirm whether the power switch is turned on, whether the power cable is damaged or loose, and whether the fuse is blown. If the power supply is abnormal, repair or replace the power cable and fuse in time to restore the power supply of the shot blasting equipment.
Check the motor of the wheelblast equipment: listen to whether there is abnormal noise when the motor is started, and use a multimeter to detect whether the motor is energized normally. If the motor fails to start or makes abnormal noise, it may be due to motor burnout or bearing damage, and the motor needs to be disassembled and inspected or replaced.
Check the transmission part of the shot blasting wheel: check whether the coupling, belt, or chain connecting the motor and the shot blasting wheel is loose, broken, or fallen off. If there is a problem with the transmission part, adjust, repair, or replace it in time.
Check the internal part of the shot blasting wheel: if the shot blasting wheel is stuck by foreign objects or excessive abrasive, clean the foreign objects and excess abrasive to ensure the shot blasting wheel can rotate freely. Through these steps, most of the faults of the wheelblast equipment and shot blasting equipment where the shot blasting wheel does not work can be solved.

shot blaster

Common Causes of Shot Blasting Wheel Not Working in Wheelblast Equipment

To better troubleshoot the fault that the shot blasting wheel of wheelblast equipment and shot blasting equipment does not work, it is necessary to understand its common causes, so as to target the problem.

The first common cause is power supply failure: the power cable is aging, loose, or the fuse is blown, which leads to the motor of the shot blasting equipment not being energized, and thus the shot blasting wheel cannot work.
The second cause is motor failure: long-term high-intensity operation of the wheelblast equipment leads to motor overheating, burnout, or bearing wear and jamming, which makes the motor unable to drive the shot blasting wheel to rotate.
The third cause is transmission system failure: the belt or chain of the shot blasting equipment is loose, broken, or the coupling is worn, which leads to the failure of power transmission between the motor and the shot blasting wheel.
The fourth cause is internal jamming of the shot blasting wheel: during the operation of the shot blasting equipment, foreign objects (such as metal scraps) or excessive abrasive enter the shot blasting wheel, causing the shot blasting wheel to be stuck and unable to rotate.
The fifth cause is the failure of the control system of the wheelblast equipment: the control switch or sensor is damaged, which leads to the failure of the shot blasting equipment to receive the start signal, and thus the shot blasting wheel does not work.

Understanding these common causes can help operators quickly locate the fault point when the shot blasting wheel of the shot blasting equipment does not work, and improve the troubleshooting efficiency of the wheelblast equipment.

shot blasting

Troubleshooting Steps for Wheelblast Equipment: Poor Abrasive Recovery Effect

Poor abrasive recovery effect is another common fault of wheelblast equipment and shot blasting equipment, which not only wastes abrasive but also affects the working environment and the efficiency of the shot blasting equipment. When troubleshooting this fault, it is necessary to focus on the abrasive recovery system of the shot blasting equipment.

Check the abrasive recovery pipeline of the wheelblast equipment: check whether the pipeline is blocked by abrasive or foreign objects, and whether the pipeline is loose or leaking. If the pipeline is blocked, use a tool to clear the blockage; if there is leakage or looseness, tighten the pipeline or replace the damaged part.
Check the recovery fan of the shot blasting equipment: the fan is the core power component of the abrasive recovery system. Check whether the fan is running normally, whether there is abnormal noise, and whether the air volume is sufficient. If the fan fails to run or the air volume is insufficient, check the fan motor, impeller, and other components, and repair or replace them in time.
Check the abrasive separator of the wheelblast equipment: the separator is used to separate the qualified abrasive from the waste residue. If the separator is blocked or the separation effect is poor, it will lead to poor abrasive recovery. Clean the separator in time and adjust the separation parameters to ensure the separation effect.
Check the abrasive storage bin of the shot blasting equipment: if the storage bin is full, it will affect the normal recovery of abrasive, so it is necessary to clean the storage bin regularly. Through these steps, the poor abrasive recovery effect of the wheelblast equipment and shot blasting equipment can be effectively solved.

shot blasting

Common Causes of Poor Abrasive Recovery in Wheelblast Equipment

Understanding the common causes of poor abrasive recovery in wheelblast equipment and shot blasting equipment is conducive to targeted troubleshooting and avoiding repeated faults.

The first common cause is the blockage of the abrasive recovery pipeline: during the operation of the shot blasting equipment, the abrasive is mixed with dust, debris, and other impurities, which are easy to accumulate in the pipeline and cause blockage, affecting the abrasive recovery.
The second cause is the failure of the recovery fan: the fan motor is burned out, the impeller is worn or stuck, which leads to insufficient air volume of the fan and poor abrasive recovery effect of the wheelblast equipment.
The third cause is the failure of the abrasive separator: the separator screen is blocked, the separation gap is unreasonable, or the separator is worn, which leads to the failure of effective separation of qualified abrasive and waste residue, and the abrasive cannot be recovered normally.
The fourth cause is the leakage of the recovery system: the pipeline or joint of the shot blasting equipment’s recovery system is loose or damaged, leading to air leakage, which reduces the suction force of the fan and affects the abrasive recovery.
The fifth cause is the excessive wear of the abrasive: the abrasive of the wheelblast equipment is used for a long time and becomes too fine, which is difficult to be recovered by the recovery system, resulting in poor recovery effect. Understanding these causes can help operators take corresponding measures to solve the poor abrasive recovery fault of the shot blasting equipment quickly.

shot blasting machine

Post-Troubleshooting Inspection and Maintenance of Wheelblast Equipment

After troubleshooting the common faults of wheelblast equipment and shot blasting equipment (shot blasting wheel not working, poor abrasive recovery), it is necessary to carry out post-inspection and maintenance to avoid the recurrence of faults and extend the service life of the shot blasting equipment.

After solving the fault, start the wheelblast equipment and shot blasting equipment for trial operation, observe whether the shot blasting wheel works normally, whether the abrasive recovery effect is good, and whether there is abnormal noise or other problems. If there is any abnormality, stop the machine for re-inspection and adjustment.
Clean the shot blasting equipment thoroughly, including the shot blasting chamber, abrasive recovery pipeline, and separator, to remove residual abrasive, dust, and foreign objects, reducing the possibility of future faults.
Check the wearing parts of the wheelblast equipment, such as the shot blasting wheel blades, lining plates, and abrasive recovery pipeline, and replace the seriously worn parts in time.
Lubricate the moving parts of the shot blasting equipment, such as the motor bearing, transmission chain, and shot blasting wheel, to reduce friction and wear.
Record the fault type, troubleshooting process, and maintenance measures of the wheelblast equipment, so as to provide reference for future troubleshooting of shot blasting equipment faults. Post-troubleshooting inspection and maintenance are crucial to ensuring the stable operation of wheelblast equipment and shot blasting equipment.