The GK9-370 is a rechargeable handheld sack-stitching machine designed for quickly closing filled bags without relying on a nearby electrical socket. Its high-speed motor, cordless design and automatic thread cutter make it suitable for farms, warehouses, mills, shops and packaging operations.

✨ Key Features

• 🔋 Powered by a rechargeable 36V lithium battery
• ⚡ Heavy-duty 210W pure-copper motor
• 🚀 Sewing speed of up to 2,600 stitches per minute
• ✂️ Built-in automatic thread cutter
• 🧵 Produces a strong chain/overlock closing stitch
• 📦 Handles bag materials up to approximately 9mm thick
• 🎛️ Adjustable thread tension and presser pressure
• 🖐️ Ergonomic non-slip carrying handle
• 🪶 Portable handheld construction
• 🛢️ Integrated lubrication system
• 🏗️ Durable aluminium-alloy and steel construction
• 🚫 Cordless operation for locations without mains electricity

🔋 Cordless 36V Operation

The rechargeable lithium battery provides complete freedom of movement around warehouses, farms and loading areas. It is particularly useful when sealing filled bags away from a convenient electrical socket.

⚡ Fast and Efficient Bag Closing

The 210W motor delivers approximately 1,300–2,600 stitches per minute, allowing bags to be closed quickly during busy packing and dispatch operations.

The continuous chain stitch creates a secure closure while remaining relatively easy to remove when the bag reaches its destination.

✂️ Automatic Thread Cutting

Once stitching is complete, the built-in cutting mechanism trims the thread quickly. This reduces manual handling and helps operators move efficiently from one bag to the next.

🧺 Compatible Bag Materials

The GK9-370 is suitable for closing:

• Woven polypropylene bags
• Jute and burlap sacks
• Kraft-paper bags
• Grain and cereal bags
• Animal-feed bags
• Fertiliser bags
• Flour and sugar bags
• Cotton and cloth sacks
• PP and PE packaging bags
• Selected thin leather materials

⚠️ Use and Maintenance

• Use industrial bag-closing thread suitable for the machine.
• Lubricate the moving components according to the operating instructions.
• Keep fingers, loose clothing and hair away from the needle and moving mechanism.
• Remove the battery before replacing needles, clearing thread jams or carrying out maintenance.
• Allow the motor to rest during prolonged continuous operation.
• Store the machine and battery in a clean, dry environment.