tender for specialised industrial sewing machines - single niddle lock stich industrial model light to medium fabric hook max speed: 4500 spm stitch length: 5 mm max pressure foot lift (mm) 5.5/13 mm motor type: clutch with suitable steel stand application: heavy fabric hook 2.large max3 mechanism,3. 4500spm speed 4. max.stitch length 8 mm 5. max pressure foot lift(mm) 6/13, 6. clutch motor with 250watt