适用范围:

上袖、合肩、合摆缝、合缝、压下摆压止口、分段打褶、上灯笼袖

高转速：4000转/分

最大线迹长度：5mm

针杆行程：31.8mm

压脚提升：手动≥5mm膝控≥13mm

机针：DB*1 

旋梭：自动润滑剪线专用旋梭 

送料压脚送布量：8mm 

送料压脚提升量：2.5mm 5mm

上差动送料用电机驱动，按键调节 

上差动送料差动比：顺差≥3：1（2.5以下针距） 

送料压脚倒缝送布量调节功能：送料压脚具有倒缝送布量调节 功能，在差动送料（如打褶）倒缝时可实现与下牙齿的同步送料， 实现加固缝的平整美观 

可调整上差的分段针数和分段差动量，可以设定9段差动量

剪线方式：旋转切刀

标配内置抬压脚

ADVANTAGE： 

Upper differential feeding flat sewing machine, using stepper motor digital adjustmen

 High speed: 4000 RPM

 Maximum stitch length: 5mm

 Needle stroke: 31.8mm

Press foot lift: manual ≥5mm knee control ≥13mm 

Machine needle: DB*1 17#-18# 

Spinning shuttle: automatic lubrication cutting special spinning shuttle

Feeding press foot feeding amount: 8mm

Feeding press foot lift: 2.5mm 5mm

Upper differential feeding differential ratio: surplus ≥ 3:1 (less than 2.5 needle distance);

Feed press foot reverse stitch feed quantity adjustment function: feed press foot with reverse stitch feed quantity adjustment Function, synchronous feeding with lower teeth can be achieved when the differential feeding (such as pleating) is reversed. Achieve the smooth and beautiful reinforcement joint 

The number of segment pins and segment momentum of the upper difference can be adjusted, and 9 segment momentum can be set

Cutting method: Rotary cutting knife

Standard built-in press foot