SQ series is square bed, 2～3needle double chain stitch machines for the following operations.
1. Suitable for the crotch sewing and side seam such as jeans and working pants.
and also for lap seaming of various kinds of fabrics.
2. Attaching the tape from the back neck to the shoulder
3. And also, suitable for a lap seaming of shirts sleeves ( light to medium thickness ).
And there are two kinds of differential feed dog which is right to left or front to back differential feed dog.
These feed dogs are effective for preventing from sewing gap and puckering.
Puller system is adjustable by the adjusting dial easily. And there are 2 kinds of puller systems either belt puller or smooth rubber roller.