PRE-DRYING ROOM CONDITIONING SYSTEM (ECS)
The UNIMAK Pre-Drying Room Conditioning System (ECS) is an environmental control solution for sanitary ware casting areas, combining recirculated and fresh air, indirect heating, humidification, extraction and PLC-based temperature and humidity control. Designed around actual casting-room conditions, it provides a controlled atmosphere for mould drying and greenware conditioning across traditional, spagless and high-pressure casting processes.
OUR APPROACH
At a Glance
A programmable sanitary ware casting room conditioning system for controlled temperature, humidity and airflow during mould drying and greenware pre-drying.
Why?
Why?
Why?
Why?
With two separate silos, two different plaster types can be used efficiently, providing greater flexibility for various production requirements.
Why?
//TECHNICAL DATA
Per Year
Per Year
Recirculating Air Handling Architecture
The air handling unit combines recirculated room air with automatically regulated fresh air from 0–100%, then filters, conditions and redistributes it through the casting area. Motorized dampers and variable-speed ventilation provide active control of the air circuit.
Indirect Gas Heating System
Heating is carried out through a stainless-steel heat exchanger, keeping burner combustion gases separated from the conditioned process air. The burner is modulated according to the temperature-control demand generated by the automation system.
High-Pressure Humidification
A PLC-controlled high-pressure water system feeds atomizing nozzles distributed through the air system, adding moisture whenever measured relative humidity falls below the programmed condition. Safety flow and pressure monitoring are integrated into the humidification circuit.
Multi-Point Temperature & Humidity Feedback
Room transmitters continuously measure temperature and relative humidity, while an additional sensor monitors incoming fresh air. The PLC processes the room measurements and uses their averaged value as feedback for environmental regulation.
PID-Controlled Environmental Curves
Temperature and humidity are regulated through PLC-based PID logic controlling the burner, humidification system and air dampers. Operators can create time-based conditioning curves, assign different settings across the week and compare programmed values with the actual process curve.
Controlled Extraction & Dehumidification
PLC-controlled axial extraction fans remove humid and contaminated room air when required. Combined with adjustable air diffusers and the fresh-air/recirculation circuit, the extraction system forms an active air-management strategy rather than relying on heating alone.
