Model : BM-8B - Cylinder Type Compound Feed Sewing Machine Cylinder Bed Heavy-weight Material lockstitch Sewing machine. As the diameter of cylinder bed is only 50 mm,it is suitable for sewing the curvatures and comes of leather, canvas jean and oxford products, Multiple plies of materials up to 8mm can be stitched smoothly. As the combination of top and bottom feed or unison feed, the slippage between material layers can be avoided, with pleasing and uniform stitches and superior sewing quality .The use of large hook reduce the frequency of bobbin changes. Specification : - Material : thick - Number of layers : 8 - Stitch length : 6 mm - Pressure foot height: 5 (Hand), 13 (Knee) - Speed : 2000 s.p.m. - Needle : Dp×5 100-140 - Power : 370 W - Size : 635 × 270 × 500 mm - N.T. / G.T. : 36.5 / 34.5 Kg