Flap folding and sealing machine is for uniform box, batch production, 
Carton sealer’s width and height is adjustable depend on different box size.
When box travels in, first front and rear minor flaps folded, then major flaps folded.
Three flaps folding device.
Carton sealer tapes the box upper and lower smoothly at the same time.
It's easy to integrate with existing in-line conveyor system.