综合送料厚料平缝机系列 Heavy duty compound feed lockstitch sewing machine series JK-4400（单针Single-needles）JK-4420（双针 Double-needles）JK-4401（无倒缝 No backstitch）JK-4400L（左梭 Left hook）JK-4430-B1T（单针 & 自动剪线 & 自动倒缝Single-needle and thread trimmer with reverse sewing）JK-4450-B1T（双针 & 自动剪线 & 自动倒缝Double-needles and thread trimmer with reverse sewing）产品简介：本机型是重科综合送料厚料平缝机的最新版，采用大型立式旋梭勾线，滑杆挑线。分为单针、双针及单针自动剪线各双针自动剪线型。上下轴用滚针轴承支承，同步齿形带传动，柱塞式油泵润滑系统。采用针杆摆动与压脚送布牙同步送料方式。整机在综合性能上传动轻滑，澡声小，耐用度高。并设有保护旋梭超负荷的离合装置，确保了缝制品和旋梭的安全。特别适用于座垫、安全带、安全气囊等饰件的缝制，还可适用于帐蓬、降落伞等大型器具的缝制。Features:This series is the latest of JUKEON brand heavy duty compound feed lockstitch sewing machines, which is designed with large vertical rotating hooks for thread loop catching and sliding bars for thread up-taking. It has been sub-classed into single needle, two needles, single needle with under-trimmer and two needles with under-trimmer. The application of needle bearings for arm shaft and hook shaft, dog belt driving, plunger pump lubrication and compound feed by needle bar, presser foot and feed dog provides this series with such splendid features as smooth running, quiet working and a long service life. It is also equipped with a safety clutch to prevent the hooks from damage by over-duty operation. So it is especially available in stitching car seat cushions, safety belts, safety air bags, tents, parachutes, etc..
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