For high-quality PRP, a Swing-out (Horizontal) rotor is often preferred because it allows for a distinct, horizontal separation layer (buffy coat), making it easier to extract platelets without contamination. However, Fixed-angle rotors are more common, cost-effective, and sufficient for basic PRP protocols. If your application requires high purity, ensure the centrifuge supports soft start and soft brake functions (acceleration/deceleration settings) to prevent the re-mixing of separated layers.