There are several types of small chicken and duck oil refining machines available on the market:

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Chicken and duck oil is a traditional Chinese medicine ingredient that has been used for thousands of years in various health preservation methods. It can be obtained through the refinement process of fresh chickens or ducks.

1. Oil extraction machine: This type of machine uses hydraulic technology to extract fat from meat without damaging it. The extracted fat can then be refined into chicken and duck oil.
2. De-fatting machine: This machine removes the fatty layer from the surface of the meat using centrifugal force. The remaining muscle tissue is then processed into poultry products.
3. Poultry processing equipment: These machines include both de-fatting and oil extraction functions, allowing you to produce chicken and duck oil directly after processing.

It's important to note that when purchasing such equipment, make sure to choose high-quality models with reliable manufacturers and good customer service. Additionally, ensure that the equipment meets local safety standards before use.