It is best to avoid placing the dryer directly below the extruder. The reasons are as follows:

1. Excessive Ambient Temperature
   Dryers release a significant amount of heat, which can dramatically raise the surrounding temperature—especially in summer. The extruder itself already generates a high level of heat. If the dryer is placed beneath it, the hot air rising from the dryer will cause the second-floor working environment to become extremely hot, sometimes reaching temperatures of 50–60 °C. This not only affects personnel comfort and safety but also has a negative impact on the performance and lifespan of on-site electrical control cabinets.
2. Issues with Condensate Recovery and Water Supply to the Conditioner
   If the dryer is installed on the ground floor, it becomes more difficult to recover condensate efficiently and to supply water to the extruder’s conditioner, which relies on gravity-assisted piping in many system designs.

Also,some Potential Cons to Consider with Higher Dryer Placement:

1. Structural Load Considerations
   Dryers are heavy and can generate strong vibrations. Installing them two floors above requires a structurally reinforced floor, which increases construction complexity and cost.
2. Increased Energy and Material Handling Costs
   Transporting semi-processed feed (wet pellets with 22–25% moisture) vertically adds complexity. It increases the risk of product spillage, deformation, segregation, or contamination.
   Moving wet material from the extruder (on the second floor) up two floors requires additional conveyors or bucket elevators, which leads to higher power consumption and maintenance needs.

In short,our proposed setup is generally best practice for heat dissipation and workflow efficiency, but structural reinforcement, energy efficiency, dust control, and maintenance access must be optimized to avoid added costs and operational risks.