SP-5490-7/S-J

Double-step motor upper differential lockstitch sewing machine

SP-5490-7/S-J
Usage scenario view


Applications

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

Product advantages

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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

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