standard： Max.sewing speed： 2000s.p.m Max.stitch length： 8/11mm Presser footlift： 1.5/80mm Needle size(standard)： DP?5 Lubrication sys： automatic specialty： 1、Single needle, single thread chain stitch. 2、Perfect stitch with consistent stitch tension and spacing 3、Noticeable lack of vibration and noise ensure quiet and smooth running 4、With gravity fed oiling system reduces the oil leakage and service 5、Trouble free and long life 6、Needle positioner can be fitted 7、Quick delivery of spare parts purpose： General applications:　Shoes string lasting & insole seaming of heavy materials;　Seaming Heels & toes of shoes insole,　padding & small around of heaviest materials.