Needle bar adopt double cover makes needle bar moves more stable, more well wear.
Adopt integrated control box, more convenient install.
Adopt improved soft connect motor, connect more steadily,more powerful penetrate.
Up Differential feed adjusted by knob, more convenient,more accurate.
Adopt patent feed dog frame oil seal structure, machine working quality more stable, more well wear.
Adopt special magnetic 3- auto control box, can according customer's condition, easily change electric suction to pneumatic suction

New designed sealed feed frame device and straight needle force oil recover

Adopt special feed frame seal structure, smoothly recover the oil from feed frame, ensure no oil throwing from feed dog, at the same time mini oil the needle bar and with force oil recover device,by the means of pump suck oil, ensure no oil throwing from needle bar, solved the problem of dirty cloth, more improve sewing quality, save labor of dirty cleaning (yellow is seal ring) (old type machine adopt 2pcs seal rings, but 800 series adopt 4pcs seal rings and with patent oil recover structure to ensure no oil throwing).

Full sealed direct drive needle bar
The force direction of needle bar is the center of needle bar, full sealed needle bar, avoid dust enter and oil leakage, decrease the wear of needle bar and cover. The old type needle bar structure of overlock adopt half seal, so dust easily enter, more easily wear the needle bar and cover.

High tensile aluminum alloy connect link structure
With the special treated aluminum alloy connect link, high tensile low weight, small inertia, increase machine speed, working life, lower noise (the old type overlock adopt copper link, more weight, much inertia, not suitable for long time high speed work).