Computerized Hotfix Sewing Embroidery CNC Automatic Ultrasonic Hot Fix Rhinestone Setting Machine. Ultrasonic Hot Fix Technology: Uses 35KHZ ultrasonic waves to melt glue and fix rhinestones immediately on materials. High Efficiency Speed: Working speed reaches 220-250 pieces per minute for rapid production. Multi-Color Capability: Supports 2-4 color options with automatic computer vision counterpoint drilling. Wide Material Compatibility: Suitable for velvet, denim, knitted fabric, PU leather, and genuine leather. Customizable Dimensions: Standard working area is 600*400mm, with customization available for other sizes. Versatile Applications: Ideal for shoes, clothing, handbags, hats, and other accessories. Safety Protection Design: Acrylic shield added to bead plate to prevent diamonds from scattering. Flexible Configuration: Available in 1-4 heads with 2-4 plates to meet small batch needs.