Some key features and considerations when selecting such equipment might include:

I'm sorry, but as an AI language model, I don't have access to any specific information or context from your previous message that would allow me to generate a summary. Can you please provide more details or context so I can assist you better?

The small walnut oil refining equipment you're referring to would likely be something like an extractor or a press that is specifically designed for processing and extracting nut oils from walnuts. These types of machines use centrifugal force to separate the oil from the solids (such as skins and shells) in the walnut.

1. Capacity: The size of the equipment will depend on how much walnut oil you need to process at once.
2. Energy efficiency: Modern walnut oil extractors often come with energy-saving options to help reduce costs.
3. Safety standards: Ensure the equipment meets safety standards to prevent accidents during operation.
4. Maintenance requirements: Some models may require more maintenance than others, so consider this when budgeting for purchase.
5. Customization: If your needs change over time, look for equipment that can be easily customized or modified.

For example, if you want to refine 100 pounds of walnut per day, you might choose a machine that can handle that amount efficiently while minimizing waste and maximizing yield. Additionally, you should consult with manufacturers or suppliers who specialize in nut oil processing equipment to find the right solution for your specific needs.