i plug my blender in the wrong sock 220v instead of 120 and it explode can it still be repaired?

Anything can be repaired; the question is if the repair will cost as much as a new blender.

This all depends on what failed inside. If a fuse blew, likely the repair will be cheap and easy. If the motor or logic board blew out, you may be better off replacing the blender.

How did you plug a 120 device into 220? The plugs are supposed to be different to prevent that.

Absolutely, jack up the blender jar and move a new motor unit under it, lower the jar on top of the motor unit.

Presto, it works again.

No. Exploded small appliances get replaced before they start fires.

Not worth it. Buy a new one, much cheaper. (and no waiting time, hoping it IS fixed).

Peace.

sometimes ...enameled copper wire of stator was molten...a small piece of wire acted as a fuze....in this case it is repairable ....

YES, IF YOU COULD GET THE PARTS.