Gypsum Raymond Mill – The Efficient Gypsum Grinding Mill for High-Quality Gypsum Powder Making Process natural gypsum, FGD gypsum, and phosphogypsum into consistent 80–400 mesh powder. This gypsum grinding machine combines low-temperature grinding with the option to dry and grind simultaneously, protecting crystal water and ensuring top-grade output.
A gypsum grinding mill based on Raymond mill technology is a vertical air-swept ring-roll pulverizer optimized for the soft, heat-sensitive nature of gypsum. Unlike generic mills, this gypsum raymond mill uses a high-volume airflow system to rapidly evacuate finely ground particles while dissipating frictional heat. This prevents the dihydrate gypsum from dehydrating prematurely into hemihydrate or anhydrite. The integrated classifier makes it an ideal gypsum powder making machine, delivering uniform powder from 80 to 400 mesh at high rates. It is the backbone gypsum grinding machine for industries ranging from construction to agriculture.
The biggest risk when grinding gypsum is overheating, which drives off chemically bound water and ruins the material's properties. Our gypsum grinding mill is designed with an oversized airflow path and a large-diameter classifier housing. This keeps the grinding zone temperature well below the dehydration point of gypsum, ensuring the finished powder remains stable dihydrate whether it is used for cement retarder or later calcination into building plaster.
Raw gypsum often arrives with surface moisture (up to 15%). This gypsum raymond mill can be equipped with an air heater on the inlet. It becomes a combined gypsum powder making machine and dryer, handling moist feed without a separate rotary dryer. You save capital cost, floor space, and the energy loss of reheating cold material – one compact system does it all.
Gypsum has a Mohs hardness of only 2, making it one of the softest industrial minerals. Our gypsum grinding machine leverages this to deliver 20–30% higher throughput than limestone grinding at the same motor power. The result is a very low electricity consumption per ton of finished powder, maximizing your profit margins on every bag of gypsum product.
Different gypsum applications demand different particle sizes. The high-efficiency turbine classifier in this gypsum grinding mill gives you precise, repeatable control over the output fineness. Adjust the dial to get 80–100 mesh for cement addition, 120–200 mesh for agricultural soil conditioner, or 325 mesh for high-grade fillers – all with the same reliable gypsum raymond mill.
Though soft, some gypsum ores contain silica or clay impurities that accelerate wear. This gypsum powder making machine comes standard with high-chromium alloy rollers and rings, providing a service life 2–3 times longer than ordinary manganese steel. Maintenance intervals are long, and spare parts costs are kept low, ensuring your gypsum grinding machine stays online.
Gypsum dust can be a respiratory hazard and a production nuisance. The entire gypsum raymond mill operates under a sealed negative pressure. Combined with a pulse-jet bag filter, the system keeps dust emission below 30 mg/m³, far exceeding common environmental standards and providing a clean, safe workspace.
| Model | KL500 | KL650 | KL780 | KL980 | KL1100 | KL1450 | KL1760 | KL1950 | KL2100 |
| Handling Ability (t/h) | 0.5-2 | 0.5-2.5 | 1-3 | 1.5-4 | 2-6 | 6-10 | 8-20 | 15-30 | 20-40 |
| Main Motor Power(kw) | 7.5 | 15 | 18.5 | 30 | 45 | 90 | 132 | 185 | 220 |
| Fan power(kw) | 5.5 | 11 | 15 | 22 | 37 | 90 | 132 | 185 | 220 |
| Analyst power(kw) | 1.1 | 1.1 | 2.2 | 2.2 | 5.5 | 7.5 | 22 | 37 | 45 |
| Rotate Speed(r/m) | 120 | 120 | 120 | 120 | 120 | 90 | 90 | 90 | 90 |
| Diameter of Grinding Ring(mm) | 500 | 650 | 780 | 980 | 1100 | 1450 | 1760 | 1950 | 2100 |
| Diameter of Grinding Roll(mm) | 150 | 180 | 260 | 300 | 320 | 400 | 450 | 570 | 630 |
| Maximum Feed(mm) | 15 | 15 | 15 | 20 | 25 | 30 | 30 | 40 | 40 |
| Finished Particle Size(mm/mesh) |
1.6 ------ 0.045mm （16-325 Mesh） |
1.6------0.023mm （16-600mesh） |
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| Weight(t) | 1.8 | 2.8 | 3.8 | 6.5 | 14.5 | 26 | 48 | 65 | 85 |
Cement Retarder: Raw dihydrate gypsum powder (80–100 mesh) is added to clinker to control setting time.
Building Plaster (Precursor): Fine gypsum powder (120–180 mesh) for subsequent calcination into β-hemihydrate plaster used in gypsum board, drywall, and decorative moldings.
Agriculture: Soil amendment powder to break up heavy clay soils, add calcium and sulfur nutrients.
Industrial Fillers: 200–400 mesh gypsum powder as a functional filler in plastics, rubber, paints, and putties.
Medical & Food Grade: High-purity fine powder for plaster casts, tofu coagulant, and brewing water adjustment.
Absolutely. This gypsum grinding mill handles both natural gypsum rock and synthetic by-product gypsum. Synthetic gypsum with high free moisture (>15%) benefits greatly from the simultaneous drying-and-grinding hot air configuration to prevent blockages.
No. This machine is a grinding mill, not a calciner. It produces fine dihydrate gypsum powder. To make plaster (hemihydrate), the powder must be heated in a gypsum calcination kettle or rotary kiln. We can supply the complete grinding-to-calcination system if needed.
For cement applications, a fineness of 80 mesh (180 μm) to 100 mesh (150 μm) is typical. This gypsum powder making machine achieves that with maximum throughput.
We configure the gypsum grinding machine with an air heater to introduce hot air at the mill inlet. This carries the moist material and dries it during the grinding process, preventing build-up on the rollers and ring.
Kolev Equipment Technology Co., Ltd. is a large-scale private technology enterprise. The company is committed to the research and development, production and sales of technical equipment for the mining and metal ore industries. It has been deeply involved in the ultra-fine grinding, industrial drying and crushing sand making industries for many years. We can provide you with Provide intelligent solutions and mature supporting products, focusing on the development of various powder equipment, complete powder production lines, drying production lines, sand and gravel line equipment and projects.Products are sold to 160 countries and regions and are well received by customers.
Kolev Equipment has always been adhering to the business philosophy of surviving by quality and developing by credibility, striving to win the trust of customers with high-quality products and perfect after-sales service, and create a brilliant future for Kolev.
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