Powder Grinding Plant
A powder grinding plant is designed to produce fine and ultra-fine powders from various minerals and industrial materials. It integrates crushing, grinding, classifying, and collecting systems to deliver stable particle size and high production efficiency.
Zhonghui Machinery provides customized powder grinding solutions for limestone, gypsum, calcium carbonate, coal, talc, barite, and other materials, supporting capacities from small-scale to industrial production lines.
80–2,500 Mesh
Final Fineness
0.4–40 T/H
Capacity
≤25 mm
Feed Size
A brief introduction to powder grinding production line
A powder grinding production line produces fine and ultra-fine powders, with particle sizes ranging from 80 to 2,500 mesh. It is widely used in industries like cement, coal, building materials, chemical engineering, chemicals, mining, and construction.
The powder grinding plant is equipped with a full set of machines, including the jaw crusher, hopper, bucket elevator, classifier, dust collector, high-pressure mill, vibrating feeder, and more. These machines are optimized for stable, high-quality performance.
At Zhonghui Machinery, our powder grinding mills and industrial grinders precisely produce coarse, fine and ultra fine powders. Depending on your production needs, we offer a variety of powder milling equipment:
※ Raymond Mill: A reliable fine powder grinding machine for non-metallic materials with less than 8% moisture. It grinds particles between 80–325 mesh (0.173–0.033 mm) and is more space-saving compared to traditional ball mills.
※ Ultrafine Mill: An upgraded ultra fine powder grinder ideal for producing fine powders and micro powders, achieving sizes between 60–800 mesh (0.25–0.015 mm).
※ Vertical Mill: Suitable for large-scale production, delivering high efficiency with output up to 420 t/h and material sizes as fine as 2,500 mesh.
Want to know more about powder pulverizers? Click here!
Our grinding mill machines use a closed-air loop system for eco-friendly, precise, and efficient operation, offering low investment, simple processes, and stable granularity for high profitability.
Materials handled by powder grinding line
The fine grinding mill and ultra fine powder grinder in our production lines handle the non-flammable, non-explosive materials with hardness under Mohs 8 and moisture below 6%.
The materials include rocks, metal ores, and non-metallic minerals such as coal, cement, phosphate, gypsum, limestone, calcite, calcium carbonate, dolomite, feldspar, talc, barite, fluorite, rare earth, marble, ceramics, manganese ore, carbon black, kaolin, etc.
Powder milling process
The powder milling process is usually divided into three key stages: crushing, grinding and collecting. The main phase is grinding and processed by a powder grinding machine.
The large stones or minerals are fed into the jaw crusher by a vibrating feeder.
After primary crushing, materials (under 25–30 mm) are stored in a bin via a bucket elevator.
Related equipment: Vibrating feeder, jaw crusher, bucket elevator
The material in the stock bin is uniformly transferred into a grinding mill machine by an electric-magnetic vibrating feeder.
Using various fine powder grinders or ultra fine grinders, powders are milled to sizes between 80–3,000 mesh.
Related equipment: electric-magnetic vibrating feeder, grinding machine, analyzer.
- Collecting
After classification, the qualified milling powder is collected by a powder collector and sent into another bin through the pipeline.
This streamlined process ensures high-quality, fine, and ultra-fine powders suitable for various industries.
Related equipment: Powder collector, dust collector.
This streamlined process ensures high-quality, fine, and ultra-fine powders suitable for various industries.
Customer cases
10 TPH Limestone grinding line in Vietnam
Product Details:
Application | Industrial |
Material | Limestone |
Capacity | 10 tons per hour |
Driven type | Electric |
Main equipment | Jaw crusher, Raymond grinding machine |
Feed size | 30 mm |
Output size | 30–200 mesh |
30 TPH gypsum powder grinding line in Philippines
Application | Industrial |
Material | Gypsum |
Capacity | 30 tons per hour |
Driven type | Electric |
Main equipment | Zhonghui high-efficiency powder grinding mill |
Feed size | 25 mm |
Output size | 100–200 mesh |
Q&A about powder grinding production line
How to choose a suitable powder grinding production line?
1 Raw material: Confirm ore type, hardness and moisture. Hard ores need wear‑resistant parts; wet materials require pre‑drying.
2 Finished powder: Clarify mesh fineness, particle distribution and end‑use standard.
3 Capacity: Set hourly output to select matched mill models.
4 Cost: Compare both initial investment and long‑term power & wear‑part expenses.
5 Site & environment: Check plant space, power supply and local emission rules.
6 Supplier: Pick manufacturers with relevant mineral processing experience, supporting installation and after‑sales service.
Provide material, fineness, capacity and site conditions to get a custom turn‑key solution.
What if the fineness of the ground powder does not meet the requirements of the finished product?
1 Adjust classifier speed first.
2 Check and replace worn grinding rollers/rings.
3 Stabilize feed size and feeding amount.
4 Optimize fan air volume.
5 Reduce raw material moisture to avoid agglomeration.
6 Fix air leakage or duct blockage.
7 Upgrade equipment if the model cannot reach target fineness.
What is the optimal moisture content for materials processed in a powder grinding production line?
1 For Raymond mill: optimal raw‑material moisture ≤3%‑5%; max allowable ≤6%. Excess moisture causes sticking and clogging.
2 For vertical roller mill (with integrated hot‑air drying): optimal ≤8%; can handle up to 15% moisture.
3 General rule: keep feed moisture as low as possible. Too wet reduces capacity, causes unstable fineness and pipeline blockage. Add pre‑dryer if moisture exceeds equipment limit.
Parameter:
Model | Feeding size (mm) | Finished product size (mm) | Capacity (t/h) | Grinding ring diameter (mm) | Number of grinding roller | Power of main machine (kW) | Blower power (kW) | Analyzer power (kW) | Transmission type |
HGM88 | <25 | 0.25-0.015 | 0.4-5 | 908 | 3 | 22 | 22 | 5.5 | V-belt transmission |
HGM95 | <25 | 0.25-0.015 | 0.6-7 | 1006 | 3 | 37 | 37 | 7.5 | |
HGM120 | <25 | 0.25-0.015 | 1.2-15 | 1280 | 3 | 55 | 75 | 15 | Reducer transmission |
HGM130 | <25 | 0.25-0.038 | 1.6-21 | 1400 | 4 | 75 | 90 | 18.5 | |
HGM138 | <25 | 0.25-0.038 | 2-25 | 1510 | 4 | 90 | 110 | 22 | |
HGM160 | <30 | 0.25-0.038 | 2.7-28 | 1770 | 5 | 132 | 160 | 22/30 | |
HGM175 | <35 | 0.25-0.038 | 3-35 | 1900 | 5 | 185 | 200 | 30 | |
HGM190 | <40 | 0.25-0.038 | 5-40 | 2040 | 4 | 250/280 | 250/280 | 45/55 |
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