Low vibration, high efficiency and up to 70% energy savings Powerful direct drive motor Automatic thread cutting and foot lifting, knife guillotine system Easy-to-use control panel and voice feedback in English Ease of use in 3 different modes (Manual - Semi-Auto - Full Auto) Safety sensors and protective equipment Usb hub, built-in led lighting system, color guides for easy thread assembly Fully automatic lubrication system DIFFERENT MODELS “ “ GN 7100-4BKD Direct Drive Mechanical Fastening System ” “ “ GN 7100-4D3BK has a converted system mounted on an electric overlocking system ” “ “ GN 7100-4BKD3 Pneumatic automatic tension decoiler, pneumatic clamping system Original System ”