What are the reasons for the failure of the stepping motor of the rotary evaporator?

The rotary evaporator can make the experimental materials rotate under constant temperature and negative pressure to form a high-temperature film, then evaporate quickly, and then cool the recovered solvent. It is an ideal instrument for distillation and extraction, material crystallization and solvent separation in the laboratory.

As the main component of the rotary evaporator, the stepping motor is the main tool to control the speed of the evaporation bottle. If the reduction motor breaks down in use, it will affect the efficiency of the experiment. This article will briefly describe the possible faults of the reduction motor.

1. The stepping motor of rotary evaporator bears too much load for a long time, resulting in too high temperature rise, damaging the insulation layer and shortening the service life of the stepping motor.

2. Bearing damage is a common fault in the operation of stepping motor. The bearing ball clearance is too small or uneven, which will cause the friction of the bearing to increase, the temperature to rise sharply, and the motor to be burned out

3. The running temperature of the stepping motor body of the rotary evaporator is too high, and the bearing fails to replenish lubricating grease in time, resulting in lack of oil or even burning out of the bearing.

4. The long-term non operation of the rotary evaporator leads to oil deterioration, and the lack of regular maintenance leads to bearing rust.