... , etc. This machine is equipped with unison feed mechanism and semi-rotary large capacity shuttle hook, suitable for sewing heavy weight ... to handle a large sewing product with ease.Applied the semi-rotary large shuttle hook & bobbin, could reduce the frequency of ... / 62 KGSWorking Space420mmMeas.0.19 CBM TY441 Long-Arm, Cylinder-Bed, Unison-Feed, Extra Heavy Duty, Lockstitch Sewing Machine