Double-step motor upper and lower differential lockstitch sewing machine



Sleeve, webbing zipper 3 in 1, webbing 3 in 1 Sew, press hem, press stop, zip up, etc

High rotational speed: 4000 revolutions per minute
Maximum trace length: 4mm
Pin stroke: 31.8mm
Foot press lift: Manual ≥5mm, knee control ≥13mm
Machine needle: DB*1
Rotary shuttle: An automatic lubricating rotary shuttle for wire cutting
Feeding method: It adopts a feeding press foot and two lower teeth combined feeding, and the upper feeding amount is adjustable
Feeding pressure foot fabric feeding capacity: 8mm
Feeding foot lift: 2.5mm - 5mm
Upper differential feeding differential ratio: Surplus ≥ 4:1 (for needle pitches below 2.5), deficit ≤ 2:1 The lower differential feeding ratio: shrinkage seam 1:1.5, extension seam 1:0.5
The upper differential feeding is driven by a motor and adjusted by buttons
The lower differential feeding is driven by a motor and adjusted by buttons
It is equipped with one-click switching of the upper and lower difference momentum
The number of segmented needles and the momentum of the segmented difference can be adjusted, and the momentum of the segmented difference can be set to 15
Wire cutting method: Rotary cutter
![]() | SP-5493-7/C-J |
![]() | DBX1 |
![]() | 5 |
![]() | —— |
![]() | —— |
![]() | —— |
![]() | 8 |
![]() | 5-13 |
![]() | 4000 |









Download user manual