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HB-767-273/275 twin-needle heavy duty industrial lockstitch shoe and leather sewing machine

产品描述：HB-767-273/275 twin-needle heavy duty industrial lockstitch shoe and leather sewing machine

Model	Max sewing speed	Stitch length	Needle bar stroke	Presser foot lift	Needle size	Rotating hook	Presser foot alternation
HB-767-273/275	3200r.p.m	0-9mm	34mm	16mm	standard 18''	1.6 times large hook	1.5-7mm

Needle gauge	Auto presser foot lifter	Presser altemation adjuster	Safety device	Lubrication	Reverse feeding device	Working space	Motor
3,4,6,8,10,12mm	pneumatic	pneumatic	standard	auto lubrication	auto reverse feeding	300*120mm	750W servo motor