UsedDonutEquipment.com offers used donut making machines, which are also known as donut robots. EBay.com also offers used machines from individual merchants on its website. In order to find a reputable seller on eBay, be sure to check individual merchants' feedback scores.
Donut robots are often offered through these sites. Both sites' inventories are set to update as more machines become available over time. If there is not a robot that can supply one's needs, checking back at a later time may be the answer. In addition, the owners of UsedDonutEquipment.com can be contacted with questions about inventory through its website's Contact tab.