Saddlestitching Stitchliner 5500 SPEED: 5,500/5,200/4,700/4,400/4,000/3,700/3,300/2,900 booklets per hour Sheet Size (Min./Max.): 5.6″ x 8.2″ to 13.7″ x 19.6″ Stitch Thickness: Max. 0.2″ Stitch Distance: 2.6″ to 6.0″ Stitch Head: 2 Standard StitchLiner 6000 Digital SPEED: Up to 6,000 booklets per hour Sheet Size (Min./Max.): 5.6″ x 7.9″ to 13.7″ x 19.6″ Stitch Thickness: Max. 0.19″ Stitch Distance: 2.6″ to 5.9″ Trim Width (Min./Max.): 0.08″ to 0.98″