Features: This series is the latest of FOXSEW brand heavy duty compound feed lockstitch sewing machine, which is designed with large Vertical rotating hooks for thread loop catching and sliding bars for thread up-taking. 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, sofa, handbag, box package, safety belts, safety air bags, tents, parachutes and so on.