DX3020 Computerized Automatic Cross-Bottom Sewing Machine This computerized cross-bottom sewing machine features user-friendly programming, simple operation, high-speed performance, and consistent, reliable stitching tension. It delivers an impressive production efficiency of 100–160 pieces per hour. Designed specifically for industrial applications, it is primarily used for sewing cross stitches on the top and bottom openings of bulk bags (FIBC/tote bags).