Item Parameter Voltage: 110VPower: 190WMotor speed: 20000+/-10% rpmSewing speed: 2200+/-10%needles/minuteStitch: single chain lineNeedle distance: 7.5-10mmSewing thickness: 0.2-10mmWeight: 2.9kg/4KGPackage size: 29.3*21*29.3 cm Package Included 110V Machine*1 Flat wrench*1 Hexagon wrench*3 Belt *1 Cutting blade*1 Oil pot*1 English manual*1 Needle*5 Item Features Adjustable Crimper When you use the Bag Closing Machine, the tightness can be adjusted according to the material of the bag, and the built-in anti-slip device makes the line feeding smoother. Hand Wheel Use When using Bag closer machine，turn the hand wheel and the needle bar will move up and down. Presser Foot Wrench Turn clockwise downwards to raise the presser foot.When working, the wrench returns first and remains perpendicular to the horizontal plane. Rod Upper Sleeve Clockwise increases presser foot pressure, counterclockwise decreases presser foot pressure Repair and Maintenance 1) The sewing machine head is composed of precise small parts. In addition to careful use, it is also necessary to pay attention to maintenance. After use, add "sewing oil" to the machine 2) After a day's work, the dust accumulated on the needle plate, in the presser foot groove and around the looper should be removed. Clean the parts that are prone to rust with an oil cloth, etc. 3) When cleaning, please use a soft cloth or brush to ensure its accessories are well protected