Barite Ultrafine Grinding Mill: 325-2500 Mesh
An industrial barite ultrafine grinding mill grinds pre-crushed barite into 325-2500 mesh powder in a single dry pass, reaching D97 fineness down to 5 µm. Baichy builds the HGM barite ultrafine grinding mill in four models rated 0.5-20.5 t/h, with main grinder power from 75 kW to 185 kW.
What Is an Industrial Barite Ultrafine Grinding Mill?
An industrial barite ultrafine grinding mill is a dry roller-and-ring mill with a turbine classifier, used to reduce barite to micron-range powder without water or chemical additives.
Barite is barium sulfate with a Mohs hardness of 3-3.5 and a specific gravity of 4.0-4.6, so barite is a soft roller-mill feed and a dense drilling-mud mineral. Barite fed to the HGM mill must be non-flammable, non-explosive and below Mohs hardness 6.
Demand for ground barite follows drilling. More than 90% of the barite sold in the United States is used as a weighting agent in oil and gas drilling fluids (U.S. Geological Survey, Mineral Commodity Summaries 2026). World mine production reached 108,700 thousand metric tons in 2025, with China at 2,200 thousand metric tons (USGS, 2026).
Bagging of finished barite products
Which Barite Powder Fineness Does Your Market Need?
Barite is bought from 60 mesh to 2500 mesh, and the fineness target comes from the buyer's specification rather than from the mill.
| Barite Powder | Fineness | Typical End Use |
|---|---|---|
| Coarse powder | 60 mesh | Chemical industry, glass |
| Fine powder | 150–320 mesh | Oil drilling, sewage treatment |
| Drilling-mud weighting agent | 200-D97 mesh | Circulation mud in oil and gas wells |
| Fine filler | 325-D85 mesh | Paint, rubber, plastics |
| Ultrafine powder | 325 mesh or more | Rubber, plastic, paint |
| High-purity ultrafine | 2500 mesh (5 µm) | Contrast media, high-grade filler |
The HGM mill covers the ultrafine end of this table, with a published product size of 5-47 µm and a D97 fineness of 5 µm in a single pass. Ultrapure barite powder is also used as a contrast medium in X-ray and computed tomography examinations of the gastrointestinal tract (USGS, 2026).
HGM Barite Ultrafine Grinding Mill Specifications
The HGM micro powder grinding mill is published in four models, from the 21-roller HGM80 to the HGM1250 with 32-44 rollers.
| Model | Rolling Rollers (pcs) | Roller Rings (pcs) | Feed Size (mm) | Product Size (µm) | Capacity (t/h) | Main Grinder (kW) | Powder Separator (kW) | Draft Fan (kW) |
|---|---|---|---|---|---|---|---|---|
| HGM80 | 21 | 3 | ≤10 | 5–47 | 0.5–6 | 75 | 22 | 45 |
| HGM1028 | 27 | 3 | ≤15 | 5–47 | 1.2–10.2 | 110 | 30 | 75 |
| HGM1036 | 36 | 4 | ≤20 | 5–47 | 1.2–11.5 | 132 | 37 | 110 |
| HGM1250 | 32–44 | 4 | ≤20 | 5–47 | 2.5–20.5 | 185 | 75 | 132 |
Two points on this table. Product size is published as one value shared by all four models, 5-47 µm, with the mesh equivalent printed as 3250-325 on the source table. Capacity is a dry-grinding range that shifts with material, feed particle size and required fineness.
How Do You Size a Barite Ultrafine Grinding Mill?
Size a barite ultrafine grinding mill from three numbers: target fineness in mesh, required output in t/h and barite feed size in mm.
• Fineness: the classifier wheel runs at 3000-6000 r/min, and higher speed returns coarse particles to the grinding zone while releasing finer powder. Grade changes use the variable-frequency classifier or a classifying wheel swap, which takes 30-60 minutes.
• Feed size: HGM80 accepts ≤10 mm, HGM1028 ≤15 mm, and HGM1036 and HGM1250 ≤20 mm. Oversize barite is pre-crushed by a jaw crusher or hammer crusher, and the published barite process reduces run-of-mine barite to 15-50 mm ahead of the milling stage.
• Power: the four models draw 75-185 kW on the main grinder, and published unit power consumption for the HGM circuit is 50-80 kW·h/ton of powder.
• Moisture: the HGM circuit is a dry process, so high material humidity lowers grinding efficiency and calls for pre-treatment drying.
Wear parts are the maintenance line item: high-chromium alloy grinding rollers and rings are published above 8,000 hours of service life, with a 2-hour replacement time.
Micropowder grinding plant at a customer site in Kenya
FAQ: Barite Ultrafine Grinding Mill
1. What fineness can a barite ultrafine grinding mill reach?
The barite ultrafine grinding mill is published at 5-47 µm and reaches D97 ≤5 µm in a single pass, with the finest grade stated as 2500 mesh (5 µm). Fineness is set by classifier wheel speed and can be switched by replacing the classifying wheel in 30-60 minutes.
2. What capacity does a barite ultrafine grinding mill have?
The four HGM models are rated 0.5-6 t/h, 1.2-10.2 t/h, 1.2-11.5 t/h and 2.5-20.5 t/h on 75 kW to 185 kW main grinder power. Output varies with material, feed particle size and required fineness.
3. What feed size does a barite ultrafine grinding mill accept?
HGM80 accepts barite up to 10 mm, HGM1028 up to 15 mm, and HGM1036 and HGM1250 up to 20 mm. Barite above the model limit is pre-crushed first, because oversize feed makes the mill perform crushing instead of grinding.
4. How much does a barite ultrafine grinding mill cost?
A barite ultrafine grinding mill is quoted per project: the model, classifier type, wear-part material, dust collector and electrical configuration all move the price. Send the barite feed size in mm, the target fineness in mesh and the required output in t/h to receive a quotation.
5. Can one mill produce both drilling-grade and filler-grade barite powder?
Yes, when fineness is set by classifier speed rather than by fixed geometry. The HGM classifier wheel runs at 3000-6000 r/min, so drilling-grade barite powder and ultrafine filler powder can be produced on the same barite ultrafine grinding mill by changing the classifying wheel in 30-60 minutes.
Baichy Heavy Industry
Baichy Heavy Industry is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 、certified, and our products include mobile crushing palnts, crawler crushing plant, construction waste crushing plants, jaw crushers, sand making machines, cone crushers, fine crushers, grinding mills, ball mills, etc., all with reliable performance to meet diverse project needs.
Baichy Heavy Industry – Your Trusted Partner
To ensure optimal performance of your equipment, Baichy Heavy Industry offers:
- Professional on-site installation guidance
- Comprehensive operator training
- 24/7 technical support & maintenance services
Our complete after-sales service system guarantees long-term, stable operation of your machinery with minimal downtime.
Protect Your Rights – Only Use Official Channels
To avoid scams and ensure authentic support, contact us exclusively through:
• Official Website: www.baichychina.com
• WhatsApp: +8615093222637
• Email: [email protected]
Your satisfaction is our priority – expect prompt, professional service every time.
(Note: Beware of unauthorized third parties claiming to represent Baichy. Always verify through official contacts.)
