
Automatic CNC Four Corner Welding Machine for PVC Window Door. CNC Precision Control: Imported Mitsubishi CNC system ensures high speed and accuracy. One-Time Corner Welding: Connects four corners simultaneously for efficient processing. Auto Clamping Device: Clamping device moves forward/backward for convenient operation. Moment Control Function: Auto-presses four corners to ensure consistent processing quality. Adjustable Crimping Blade: Blade adjusts to requirements of different profiles. Seamless Connection: Servo system ensures no seam and improved control accuracy. High Quality Frame: Specially jointed by steel with high quality and special process. Wide Application Range: Suitable for PVC window doors and aluminum window/door corners.