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4431 Two needle cylindrical bad compound feed heavy dutylockstitch sewing machine
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ModelYS-4431 
Needle countdouble needle
Sewing speed1800r.p.m
Foot lifter height(max)11mm
Needle bar stroke33.6mm
Stitch length12、9.5、7.9、6.4、4.8mm
Cylinder diamete90mm
Working space230mm  X   100mm
Take-up lever stroke60mm
Motor power750W separate energy-saving   motor with optional electric needle positioner
 NeedleDPX17 18#-24#
Rotary hooklarge vertical rotary hook
Lubrication systemmanual lubrication


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