1. The inner liner adopts an internal circulation structure, which ensures uniform heat transfer and minimal heat loss.

2. The air door adopts bottom and side doors for air intake. There are adjustment devices for the bottom and side air intake, which can be adjusted separately. The air volume can be adjusted according to the shape of the object to achieve the best contraction effect.

3. The solid conveyor shaft is driven by the conveyor shaft and can be adjusted in two states: rotating and non rotating.

4. Omron temperature controller ensures accurate temperature control and long service life.

5. The fan and conveyor motor are both controlled by frequency conversion, which can achieve the best contraction effect and speed.

6. The shrinkage furnace is equipped with an observation window, which allows for real-time monitoring of the shrinkage situation for various adjustments.