Sewing Unit for Attaching Endless Zippers to Trouser Flies FZ-3400 is designed to automate attachment of zippers to trouser flies providing numerous advantages such as elimination of fusing operation of fly piece, consistent seam widths due to a special edge guide system, pucker-free operation on difficult to feed fabrics, using of continuous zipper form with minimum zipper waste. Features ■ Twin Needle Chainstitch Sewing Head ■ Intermittent Top Puller System with Adjustable Speed to Bottom Feed ■ Tape Feeder ■ Zipper Feed System with Special Gauge Optional Accessory ■ Special Zipper Cutting System with Photocell Length Control Production Data per 8 hour day ■ 1,300 trousers The sewing unit is designed to prepare double folded belt loops with inserted tape using a blind stitch sewing head. The operator can form belt loops in a very consistent quality with high productivity. Features ■ Maier 221 Class Sewing Head ■ Front Cutter for Cutting the Stripes in Folder Width ■ Front Feeder for Feeding the Material into the Folder ■ Easy Stitch Depth Adjustment for Different Thickness Fabrics ■ Thread Puller for Regular Stitch Formation ■ Special Knives for Top and Bottom Fabric Cutting ■ Rapid Change Device for easy Change of Loop Width Folder Standard Accessories ■ Belt Loop Pressing Kit ■ Auto Tape Feeding System ■ 10 mm Loop Width Gauge Set Optional Accessories ■ 8 mm Loop Width Gauge Set ■ Photocell Controlled Automatic Belt Loop Cutting System ■ Special Folding Station for up to 40