Double-step motor upper differential lockstitch sewing machine



Top sleeve close shoulder close swing seam close seam press lower hem press stop Sectional pleated lantern sleeves

High rotational speed: 4000 revolutions per minute
Maximum trace length: 5mm
Pin stroke: 31.8mm
Foot press lift: Manual ≥5mm, knee control ≥13mm
Machine needle: DB*1
Rotary shuttle: A special rotary shuttle for automatic lubrication of wire cutting
Fabric feeding capacity of the feeding press foot: 8mm
Feeding foot lifting capacity: 2.5mm - 5mm
The upper differential feeding is driven by a motor and adjusted by buttons
Upper differential feeding differential ratio: Surplus ≥ 3:1 (for needle pitches below 2.5)
Function of adjusting the reverse seam and fabric feeding volume of the feeding press foot: The feeding press foot has the function of adjusting the reverse seam and fabric feeding volume The function enables synchronous feeding with the lower teeth during differential feeding (such as pleating) when reversing the seam. Achieve a smooth and aesthetically pleasing reinforcement joint
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 9
Wire cutting method: Rotating cutter
Standard configuration includes built-in lifting and pressing feet
Driven by a needle pitch motor, it can be adjusted by keys and features one-click switching to a computerized flat car
![]() | SP-5490-7/S-J |
![]() | DBX1 |
![]() | 5 |
![]() | —— |
![]() | —— |
![]() | —— |
![]() | 8 |
![]() | 5-13 |
![]() | 4000 |









Download user manual