I'm new to the Sourdough Forum. This just a note to let you know that when buying a food/dough mixer chose carefully.
My KitchenAid Artisan which is just 4 years old seized up while mincing some meat. The mixer had very little done and it is this year I have tried out some baking using the mixer.
The problem was that when the mixer was being assembled there was no lubrication put on the shaft of the attachment gear. The attachment gear dosen't run on bearings, it runs directly in the cast housing. So, when the shaft wears so dose the housing of the mixer.
KitchenAide! never again.