When the machine is specified to have a three-phase 380V power supply, the zero line must be input simultaneously, which is similar to other packaging equipment in the standard three-phase four wire system, such as vacuum packaging machines. Otherwise, the machine will not function properly and it is highly likely to burn out internal electrical components. The machine must be installed horizontally, otherwise it will shorten the service life of the electric heating tube. For machines with conveyor belts, their inclined installation will cause the conveyor belt to deviate from the center.

The fully automatic shrink packaging machine is an automatic packaging equipment that combines pneumatic components and mechanical devices, controlled by PLC and other peripheral circuits. The executive component of the device is the cylinder, which is controlled by a two position five way solenoid valve to move forward and backward. The working position of the cylinder is detected by magnetic switches and proximity switches and fed back to the PLC. The PLC sends control commands to the corresponding solenoid valve of the cylinder through a program, thereby controlling the action of the cylinder.