company news about Best-selling strapping tools --- Semi-automatic strapping machines

Best-selling strapping tools --- Semi-automatic strapping machines

What is a semi-automatic strapping machine?

Semi-automatic strapping machine is used to secure cartons, wooden boxes, or other packages with strapping belt (usually PP or PET plastic strap ). It's called "semi-automatic" because some operations are performed manually, while the machine automatically performs the core tightening, hot-melt bonding, and belt cutting.

Core Working Principle

The workflow of a semi-automatic strapping machine can be summarized as follows:

1. Threading----- The operator threads the strapping tape around the box and feeds the front end of the tape into the machine's inlet.

2. Sensor Start------- The machine automatically starts (or the operator presses a button) upon sensing the insertion of the strapping tape.

3. Tapering and Tightening------ The machine's motor drives the take-up reel, pulling the strapping tape back to securely wrap the package. The tension can be adjusted as needed.

4. Hot Melt Bonding----- When the tension reaches the preset value, the machine's hot melt head moves to the overlapping portion of the strapping tape (usually the top and bottom layers), heating and melting it.

5. Laminating and Cutting-----The hot melt head applies pressure while heating, firmly pressing the two ends of the melted tape together to form a secure joint. The cutter then quickly removes any excess belt.

6. Reset------ After bonding and cutting, the hot melt head resets, returning the machine to standby mode, ready for the next operation.