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1: direct drive system., 2: low vibration, and low noise., 3: compare to other machines, this type can save 60% electricity. - details see: https://www.machineto.com/sr-7300-433-single-needle-lockstitch-sewing-machine-parts-of-lockstitch-sewing-machine-10253281

SR-7300-433 High speed direct drive computerized lockstitch sewing machine

Specifications:

Model name	SR-7300-433
Application	Light to medium heavy material
Max.sewing speed	5,000stitch/min
Max.stitch length	5mm
Lift of the presser foot	Auto
Needle type	DB*1 #11-#18
Hook	Automatic lubricating full-rotary hook
Lubrication	Automatic
Weight of machine head	25.5/35.5KGS
Measurement(CBM)	0.078CBM

It is suitable for garments, shoes, hats, knit and leather bag.

Display sreen, controller, and direct drive servo motor as a whole part, operate easier and quicker.

Automatic thread trimming mechanism

Automatic trimmer with rotary cutter designing, Thread end will be cut under the material after stopping, so it is unnecessary to remove the thread tail

LED light, switches for LED light and back stitching

by providing a presser foot with a higher lift(13mm), a light touch stitch dial, a throat plate with marker grooves that can be used as guide for seam allowance.