1. Large operation space, convenient for the heavy duty sewing. Internal direct drive and the pneumatic controlled components, convenient to maintenance, more safety and energy saving.

2. It adopts horizontal large hook structure, can sewing maximum thread of strands 9 nylon.

3. Standard 10mm needle guage, pneumatic halving outer foot, balance and conpensate inner foot.

4. By instantaneous adjust alternating amount of presser foot, convenient for clambing over the thick spots.

5. It can be set two different tension for clamp device to change quickly by shortkey botton.

6. Automatic trimming, arutomatic backtacking, pneumatic presser foot, pneumatic clamp tool, instantaneously adjust the amount of inner and outer presser foot alternating, intergated LED light, free handle bobbin winder and Practical function.

7. Three part compound feed constrcution can make sure feed smoothly while sewing heavy duty and complicated material, and diffcult to move for upperand lower material.