Equipment and Machinery Used in Gypsum Powder Production: A Comprehensive Overview

Gypsum is a mineral composed of calcium sulfate dihydrate (CaSO4ยท2H2O). It is commonly used in construction applications as a raw material for plaster, drywall, and other products. Gypsum powder production is a complex process that involves many different pieces of equipment. In this article, we will discuss the machinery and equipment requirements for starting a gypsum powder production line.

Main Equipment in Gypsum Powder Production

The main equipment in gypsum powder production is a crusher that can finely crush and grind gypsum rocks into small pieces. Moreover, the crusher also helps to break the large-sized gypsum ore into smaller particles for further processing.

After crushing, the gypsum rocks are sent to a grinding mill for grinding into a fine powder. The grinding mill is an important machine used for further processing of gypsum powder. Vertical mill and Raymond mill are popular milling equipment in this field. However, many manufacturers also prefer using a ball mill for grinding.

The next important piece of equipment is the gypsum calcination kiln. This kiln is responsible for converting the raw gypsum into a calcium sulfate hemihydrate (CaSO4ยท1/2H2O) called plaster of Paris, which is the main component of gypsum plaster, plasterboard, and other gypsum products. The kiln operates at high temperatures to remove the water from the gypsum and transform it into plaster of Paris.

Different Types of Calcination Kilns

There are various types of calcination kilns used in gypsum powder production, including rotary kilns, flash calciners, and fluidized bed batch calciners. Rotary kilns are the most commonly used type due to their high capacity and efficiency. They are suitable for both large-scale industrial production and small-scale manufacturing.

Flash calciners, on the other hand, are known for their rapid heating and cooling capabilities, making them ideal for applications where a fast turnaround time is required. Fluidized bed batch calciners are often used for laboratory-scale or small production quantities.

Additional Equipment and Machinery

In addition to the primary equipment mentioned above, a gypsum powder production line may require several other pieces of machinery to ensure smooth operations. These may include conveyors, dust collectors, crushers, separators, and packing machines.

Conveyors are used to transport gypsum between different stages of the production line, while dust collectors are essential for controlling air pollution and maintaining a clean working environment. Crushers are used to break down larger gypsum particles into smaller sizes, and separators are necessary to remove impurities from the gypsum powder. Packing machines are used to package the final product for distribution and sale.


Starting a gypsum powder production line requires investment in various types of equipment and machinery. From crushers and grinding mills to calcination kilns and additional infrastructure, all equipment must be carefully selected and integrated to ensure reliability and efficiency. By understanding the specific machinery requirements and processes involved in gypsum powder production, manufacturers can effectively set up and operate a successful gypsum powder production line.

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