It is provided with synchro tooth belf for driving and plunger pump for lubricating ank knob-type stitch regulator and lever-type reverse feeding mehanism.

• 采用邮箱供油自动润滑系统，针杆摆动与送布牙同步送料方式，旋钮式圆盘调节针距和杠杆式倒顺送料机构使操作更为方便。