When sourcing a leather folding machine, you must prioritize folding width (typically 3mm to 15mm) and working speed (adjustable up to 2500 rpm). Ensure the machine features an automatic glue-spraying system with precise flow control to prevent overflow. For high-end leather goods, look for models with electronic positioning and automatic trimming functions, which ensure a clean finish on curved edges and corners. Additionally, verify the motor type; a servo motor is preferred for its energy efficiency and noise reduction compared to traditional clutch motors.