本机型是综合送料厚料平缝机的系列产品；采用大型立式旋梭勾线，滑杆挑线，分为单双针。上下轴用滚针轴支承，同步齿形带传动，柱寒式油泵润滑系统。采用针杆摆动兴压脚送布牙同步送料方式。整机在综合性能上传动轻滑，噪声小，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。适用于汽车座垫、安全带、安全气囊等汽车饰件的缝制，还可适用于帐篷、降落伞等大型器具的缝制。

This series is the latest of heavy duty compound feed lockstitch sewing machines, which is designed with large vertical rotating hooks for thread loop catching and sliding bar for thread up-taking. It has been sub-classed into single needle and two needle. The application of needle bearings for arm shaft and hook shaft, cog 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 availablein stitching car seats, safety belts, safety air bags, tents, parachutes, etc.