Name ZJ457b-DP-LF High-speed dual-mode switching zigzag sewing machine company Zhongjie Sewing Machine Co., Ltd. Features 1 Added double cam switching device 2 with cam automatic compensation mechanism 3 Increased presser foot pressure fine adjustment device, pressure adjustment screw with high scale 4 Adjusting lever 5 with reference line and locking device is used to widen the synchronous toothed pulley structure. 6 Needle bar and hook phase improvement function 1 Only one switch can be used to realize one step two and three Step four-point two-track switching, one machine dual-purpose 2 can extend the life of the cam, and it is more durable. 3 It is more convenient to operate. 4 Make the stitch of the adjustment word stitch easier and more convenient. 5 Effectively prevent the jump of the same gear. Tooth 6 machine noise is reduced by 2-3 decibels. 7 Sewing can be more stable. Background Sewing Sewing Machine Co., Ltd. can produce 12 series of more than 100 varieties of industrial sewing machines. The products have passed ISO9001 quality system certification and European CE certification.
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