... differential feeding ratio,6, With thread & needle cooling system, thread & needle can be lubricated and cooled by C10 oil ... Flanging Thickness70mmFlanging Width30mmMax Rotate Speed5000rpmStitch Length2-5mmNeedleDO*5 22#Needle Gauge2.0, 3.0, 5.0mmAir Presure0.5- ... 0.8mpaSewing head typeJUKIUpper feed belt availableYesNeedle bar typeDouble-barPneum cut flangingNoPower Supply380/220V, 50HZ, ...