Some can be used as workhorses but let’s face it, they are not meant to be used to death. Doing so will shorten the lifespan significantly as you put unnecessary stress on the motor. If you notice your product is constantly overheating, shut it off for one, but follow some tips to prevent it from happening in the future. For starters, limit the number of thick ingredients you are using and blend some of the ingredients in smaller batches. Next, give at least a foot of diameter of space (especially near the base where the main heat will be generated).
Of course, you also need to give it time to cool down when it needs it. As soon as you feel the base getting warm, allow it to rest for several minutes. Remember, you are probably going to spend a lot of money on this machine so take good care of it.