Gypsum Board Manufacturing Machine

Gypsum Board Manufacturing Machine

Introduction

A gypsum board manufacturing machine is a sophisticated, integrated production system that transforms raw gypsum, additives, and paper liners into finished interior building panels used worldwide. These machines operate as continuous production lines that combine mechanical conveying, thermal processing, slurry mixing, precision forming, cutting, drying, and automated stacking. Hengshui Decheng Machinery & Equipment Co.,Ltd designs complete gypsum board manufacturing machines that support different capacities, board specifications, and regional production standards.

Below is an in-depth overview of the structure, functions, and operating principles of modern gypsum board manufacturing machinery.

1. Raw Material Feeding Systems

A stable supply of gypsum powder, modified starch, foaming agents, water, and performance additives is essential. The feeding system includes:

• Powder silos with aeration systems to maintain flowability.

• Automatic dosing machines for stucco and additives.

• Water supply modules with controlled flow meters.

Accurate feeding ensures consistent slurry quality and prevents formulation deviations that could affect board strength or surface appearance.

2. Slurry Mixing and Conditioning Unit

• The heart of the board-making process is the slurry mixer.

• High-shear mixers or continuous pug mills blend stucco with water and additives.

• Foaming equipment introduces micro-air bubbles to achieve required density.

• Vacuum or de-aeration units help remove excessive air.

• The resulting slurry must have uniform viscosity and stable flow characteristics to support continuous forming.

3. Paper Unwinding and Pre-Treatment System

Gypsum board consists of top and bottom paper layers. The machine includes:

• Upper and lower paper unwinders with tension control.

• Edge trimming and splicing tables to maintain continuous paper feed.

• Alignment devices to ensure accurate web position.

4. Forming Section (Core of the Line)

The wet gypsum core is poured onto the moving bottom paper, followed by the upper sheet.

Key forming components include:

• Forming table and forming belt

• Slurry distributor / headbox

• Edge forming devices

• Thickness control shoes

Smooth forming ensures stable board thickness, strong paper bonding, and well-defined edges.

5. Setting Belt and Hardening Zone

After forming, the continuous board travels along a setting belt where the chemical reaction occurs, converting hemihydrate to dihydrate.

This section must maintain:

• Correct belt speed

• Stable temperature

• Proper slurry chemistry

• The setting time directly impacts cutting quality and line speed.

6. Outfeed, Stacking, and Packaging

• After drying, boards are cooled, inspected, trimmed if necessary, and stacked automatically.

• Stackers arrange boards into pallets.

• Packaging units apply protective wrapping.

Conclusion

A gypsum board manufacturing machine is a complex, multi-stage production system requiring precise coordination of material flow, chemical reaction, and mechanical operation. Hengshui Decheng Machinery & Equipment Co., Ltd provides machines engineered to support stable long-term operation, consistent product quality, and efficient energy use.