1、 The conveying flap is a docking structure, and long-term production leads to deformation of the flap, resulting in gaps and material leakage from top to bottom.

2、 Poor sealing of the furnace body, large heat dissipation, slow heating speed, and poor insulation effect.

3、 The structural design of the furnace body is unreasonable, and prolonged high-temperature operation leads to easy deformation of the furnace body.

4、 This type of furnace is suitable for low-temperature drying in industries such as vegetables, food, and medicinal materials.