FIBC BAG (BULK BAG) MAKING SEWING MACHINE. 80700C/80700CD4H Double needles four threads for FIBC bags making. Heavy duty with up and down feeding, chain stitch sewing machine. Same with 81300, this machine with top and bottom filler cord guides. 80700C it is above basic function. Both cutch motor and servo motor is OK. 80700CD same with 80700C but with pneumatic foot lift. Both cutch motor and servo motor is OK. 80700CD4H, same with 80700C but with pneumatic foot lift system and heating cutter system. This machine can only use servo motor. Using servo motor we have function of needle position fixing system.