When the machine is used continuously for more than three months, the temperature resistant wires in the contraction chamber should be inspected and replaced according to their aging degree. During machine operation, the operator's palm and other parts are not allowed to come into contact with the operating parts of the machine, especially the extremely high temperature inside the contraction chamber, which can easily cause burns. After the packaging work is completed, the heating switch should be turned off first, and the conveyor motor and fan motor should continue to run for about 10 minutes before cutting off the entire power supply.

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 products packaged by the shrink packaging machine can be sealed, moisture-proof, and impact resistant, suitable for tightly wrapping multiple items and pallet packaging; The digital display computer is capable of temperature control and has a small temperature difference; Stable and reliable, low noise, and long service life; During the shrinkage process, it does not affect the quality of the packaging, but can shrink quickly. The packaged product can be sealed, moisture-proof, and impact resistant, suitable for tight packaging of multiple items and pallet packaging.

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.