1. Unique electronic yarn clamping mechanism, through the adjustment with the electromagnet yarn clamping tension can achieve the difference needs of button holing middle parallel part and bar tacks tension.

2. New slicer equipment, cutting material more accurate the cutting force of up and down movement is drived by the bothway electromagnet to make the cutting. material moreaccurate. Through the unique function of slicer repeatedlly fall and rise, do not need to change the slicer when change the size.

3. Multifunction of operation panel can setting the front five needle through the operation panel, to achieve the function of slow start, effectivelly avoid the break line when machine fast start. through the electronic control to bar tacking the last sewing to avoid the off-line of button hole. the adjustments of width, length of buttonhole, the speed of sewing can achieve through the operation panel.

4. Use 5 high-precision stepper motor(top tangent, down tangent, feed, needle, presser foot), capacity of decomposition can reach 0.05mm, make the stitch more steady and beautiful. meanwhile easy achieve auto-operate, greatly simplify the organization and reduce the noise. use the electronic control take place of tradition button holing depend on the master can to change the sewing style, to make the shape of sewing changeable and size more convenience, short time of adjustmenand high work efficiency.