Buyers should prioritize heating efficiency and roller dimensions. For high-volume laundry operations, a roller diameter of 500mm to 800mm is standard to ensure sufficient contact area. Ensure the machine features variable speed control (inverter-driven) to handle different fabric types like cotton, linen, and polyester. Additionally, check for steam, electric, or gas heating options based on your facility's utility costs; steam heating is generally the most cost-effective for large-scale industrial use.