We have a mixer here; we’ve changed the oil twice, but it still shuts down after running for a while. What’s going on?

The skip-stop is likely a power supply issue; does it have much to do with the oil?

Electrically, check that the overload protection devices and switches are not aged or overheated. The inside needs to be cleaned mechanically.

The reasons are as follows: 1. Excessive power； 2. The protector is set too low. If it’s an old device, could a recent change in the feeding process (the way materials are added) have caused an overload in power consumption? If the process hasn’t been changed, is the lower blade unbalanced? Or is the bearing damaged?

Yes, what everyone said makes sense. Thank you

Oil change in winter: it is estimated that the owner’s mixer uses mineral base oil; if it’s synthetic oil, generally no oil change is needed in winter. There are many factors that can cause a machine to shut down suddenly. An excessively high temperature of the lubricating oil or too low pressure of the lubricating oil can both lead to such shutdowns. If the viscosity of the lubricating oil chosen is too high, its heat dissipation capacity is poor, which results in a reduced cooling effect and an increase in oil temperature, thereby causing the machine to shut down. Additionally, if the lubrication circuit is blocked, it can lead to pressure buildup within the lubrication system, and this increased pressure will also cause the machine to shut down. Choosing the right lubricant not only extends the service life but also ensures safe operation over a long period of time. If needed, please contact 981007707

The material inside the mixing tank is too viscous

I’m not sure what type of mixer the original poster is referring to; another question is, what materials is it used to mix? Personally, I think it’s still the increased load that causes the tripping

I’m not sure whether the equipment in the poster’s facility is old or new. If it’s old and this issue has only started appearing recently, it’s recommended to check the bearings on the frame. For mixers with a single-support structure and cycloidal reducers, the reducer itself should also be inspected; I’ve encountered this problem quite often with such designs. If it’s new equipment, it’s possible that as the reaction progresses, the properties of the material change, such as an increase in viscosity. In that case, the mixer’s design is likely inadequate, and it’s advisable to replace the motor and reducer or reduce the diameter of the impeller. Please refer to the original poster.

It seems we need to check if there’s a mechanical fault. Could it be that there’s a problem with the mixer’s bearings? The motor tripped due to overload.

There are generally two main reasons for this situation: 1, excessive load. 2. Electrical issues. And there are many reasons for the load. If the bearing is damaged ； The lubricant is too viscous ； The mixture is too sticky, etc.