ECONOSEW-441-Lockstitch Heavy Duty Walking Foot SINGLE NEEDLE, CYLINDER BED, EXTRA HEAVY DUTY LOCKSTITCH MACHINE, UNISON-FEED (NEEDLE-FEED & DROP-FEED WITH ALTERNATING PRESSER FEET), EXTRA LARGE OSCILLATING SHUTTLE HOOK AND REVERSE FEED => Stitch length regulator locking system=> Built-in bobbin winder=> Silicone oil needle cooling system=> For sewing heavy weight materials such as canvas, vinyl, and various synthetic fabrics, etc.=> Suitable for sewing such products as safety belts, tents, cushions, bags, golf bags, sofas, etc. Maximum Sewing Speed 800 spm*Stitch Length Adjustment 0 to 11mmPresser Foot Lift By Hand: 12mmBy Pedal: 20mmNeedle System 7x3Needle Bar Stroke 56mmFeed Type Unison feedHook Type Extra large oscillating shuttle hook allows for greater production with fewer interruptionsAmount of Alternating Presser Foot Lift 4 to 7mm (5mm standard)Cylinder Diameter 81mmWorking Space 420mmLubrication System Manual Spec Brands appreciates your business. Summary of My Selling Policies ATTENTION ! Electrical Requirements ! All our products are offered in 110V USA standard and special adaptor and/or voltage converter will probably required in other countries.Do not plug straight into a outlet without checking the manufacturer's instructions. The warranty does not cover damage due to improper installation, power surges or connection to incorrect voltage. Read my policies on my SquareTrade Seal |