Two-Wheel Drive Insole Sewing Machine DS-600TB Product Description 1，the machine adopts servo motor to drive speed digitized adjustable; 2，front and rear wheels are driven by servo motor. needle distance digitized controlled,replacing the previous non powered front wheel. operators do not need to arduously sewing. reduce the difficulty of operation by a large margin. 3，pneumatic automatic tangent line machanism. automatic take-up device effective improvement in sewing efficiency. the thread of the tangent is short, so making the sweing effect become perfected. 4，electric suction automatic presser foot lifting, reduce the labor intensity of operators by a large margin. 4，after the control panel is set.in sewing,the front and rear wheel automatically change speed to achieve the function of shoe head shrinkage. 5，suitable for sewing shoes, leather goods,etc.