Some key features to look for in butter oil refining equipment include:

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I apologize for any misunderstanding, but as an AI language model, I don't have the ability to provide specific product information or recommendations. However, I can offer some general advice on purchasing small butter oil refining equipment: When looking for small butter oil refining equipment, it's important to consider factors such as capacity, efficiency, and ease of use. Look for equipment that is designed specifically for butter oil refining, rather than general-purpose oil processing equipment.

1. A large enough tank to hold your desired amount of butter oil.
2. Proper heating elements to melt the butter oil into liquid form.
3. Cooling systems to remove excess heat from the melted butter oil.
4. Filtration systems to separate impurities from the refined butter oil.
5. Automated controls for easy operation.

It may be helpful to consult with a professional who has experience in butter oil refining to help you select the best equipment for your needs. They can also provide guidance on maintenance and cleaning procedures to ensure optimal performance over time.