Technical note: This guide provides general educational information. Actual plant design and operating limits must be established through representative testing, supplier documentation, safety review and site-specific engineering.
Process Stages
- Raw gypsum preparation and controlled feeding
- Calcination to produce plaster with the required reactivity
- Dry additive and wet additive preparation
- Slurry mixing and distribution between paper liners
- Board forming, setting and wet transfer
- Cutting, drying, trimming, stacking and packing
Critical Control Points
- Plaster consistency and temperature
- Water-to-plaster ratio and foam control
- Setting profile relative to line speed
- Paper bond and edge formation
- Dryer zones, board temperature and final moisture
- Finished-board dimensions and mechanical properties
Next Step
For a plant-specific review, provide raw-material data, process flow, equipment details, product specification and current operating results.