. These new improved mattress flanging machines using Kingtex SHG-7000 as machine base. With extra wide upper angled knife and lower knife are re-designed to flange mattress panel. With foam and non-woven fabric up to 100 mm (4") altogether smoothly and fast.. Material: 3/8" ~ 4" (9.5 mm ~ 100 mm). Speed: 4,000 rpm. Seam width: 25 mm (1") standard or 19 mm (3/4") to order.. Needle gauge: 19 mm (3/4) standard or 15 mm (5/8") to order.. Presser foot height: 20 mm (3/4"). Stitch length: 2 ~ 5 mm (up to 4 spi)