The new type of top-bottom feed machine is with link lever to drive the lower shaft, and designed with super needle bar stroke, so that greatly enlarge the ability for sewing heavy/super heavy materials with prolonged arm to offer greater working space suitable for sewing leather products, suit-case, bags, canvas, seat-cushions, etc.

Model						r.p.m		mm	mm		Kg			W	mm
OK3300/0318				8	DP×17 #20-#23	2500		37	6	13	27	35	#18	370	580×250×530