4·2H2O). Due to its excellent fire resistance, soundproofing, and humidity regulation properties, gypsum is widely used to make products like gypsum boards, gypsum powder, plaster bandages, and fertilizers.

Gypsum rock is crushed and ground into gypsum powder

The gypsum powder processing plant

Complete gypsum grinding process flow:

    1 Gypsum ore is processed by Crusher and Crusher to reduce the particle size to below 25 mm.
  1. 2 Next, different types of grinding mills are used for fine grinding.
  2. 3 After classification by a powder selector, the qualified powder is collected by a cyclone collector and sent to Crusher for calcination.
  3. 4 At around 150°C, mature gypsum is formed, and when heated above 170°C, hard gypsum is produced.
  4. 5 Finally, the gypsum powder is cooled and packaged for sale.

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Gypsum powder mills

Grinding mills are the core of the entire production line, directly affecting the fineness and quality of gypsum powder.

Raymond mills, ultrafine mills, and vertical roller mills:

1. Raymond mill Crusher

suitable for small and medium-sized enterprises. The grinding process is completed by squeezing and grinding with rollers and rings, making it ideal for processing gypsum with moisture content below 6%.

Why choose FTM Machinerys Raymond mill?

2. Ultrafine mill Crusher

produce ultrafine gypsum powder or micron-level particles, and is widely used in industries requiring high-fineness powders, such as chemicals, coatings, and plastics.

Specifications:

    Input size: <40 mm
  • Output capacity: 0.4–40 t/h
  • Output fineness: 60–800 mesh (0.25 mm–0.015 mm)

Benefits of the Ultrafine Mill:

    Superfine results: Achieves particle sizes beyond what other grinders can reach, tightly controlling gypsum particle size distribution and increasing surface area.
  • Low maintenance costs: With segmented rollers and specially designed wear-resistant shovel heads, the replacement cost of wear parts is reduced by over 50%.
  • High powder collection rate: Equipped with a larger cyclone powder collector and roller-linked pressure boosting technology, combined with an air-lock feeder, greatly improving powder collection rate.
  • Low risk of contamination: Multi-level dust sealing ensures that gypsum powder is not contaminated by internal machine parts.

3. Vertical roller mill Crusher

has become the preferred equipment for large-scale gypsum powder production.


    Large feed size: Gypsum ≤55 mm can enter the system directly, eliminating secondary crushing and simplifying the process.
  • High capacity: The production capacity can reach 420 t/h.
  • Wide output range: Output fineness adjustable between 14 mesh and 2500 mesh.

Customer case: 300 tons per day gypsum powder production (Thailand)

    Achieve a daily output of 300 tons of high-quality gypsum powder.
  • Reduce production costs and improve energy efficiency.
  • Ensure product quality while minimizing environmental pollution.

    Production achieved: Successfully met the goal of producing 300 tons of gypsum powder per day.
  • Cost reduction: Optimizing equipment configuration and process flow reduced overall production costs by 20%.
  • Energy efficiency: Energy consumption decreased by 30% compared to traditional production lines.
  • Environmental compliance: The production process fully complied with Thailands environmental regulations, ensuring sustainable production.

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