NOTE: Purchase instructions: exclude motor exclude tabletop rack the product is only the sewing machine head and the customer needs to purchase a motor with a power of more than 400w and the tabletop rack to install and use. In terms of installation combination it is recommended that personnel with professional knowledge carry out the installation. Product Description: This machine adopts a connecting rod type feeding mechanism stable operation small back stitch error uniform stitch and beautiful appearance. It is suitable for sewing all kinds of thin and medium-thick material clothing fabrics etc. in clothing knitting and other industries. The automatic lubrication device and the silicone oil lubrication thread device are used so the sewing performance is extremely stable. At the same time the use of a double-threaded large rotary hook greatly improves the sewing efficiency. It is suitable for sewing jeans tents leather products etc. It is a heavy duty flat sewing machine with stable performance. The main technical parameters are as follows: Model: SM 6-9 Name: Thick material lockstitch sewing machine Maximum speed: 3000S.P.M Needle used: 1 needle type: DP*5 No. 17 Maximum stitch distance: 7mm(0.27 in) Presser foot stroke: manual 6mm(0.24 in) knee control 13mm (0.5 in) Use of the rotary hook: 2 times the thread volume of the rotary hook Lubrication method: oil pump automatic lubrication Gross weight/net weight: 35KG/29KG Outer packaging volume: 580*250*530mm (22.83 * 9.84 * 20.87 in) Packing List: 1 set of winder 1 set of single needle two thread rack 1 set of machine head rubber pad Knee control module *1 set Screwdriver *1 set Support pillar *1 Belt *1 Oil cans *2