In industries like cement, ceramics, and mining, high-quality stone powder (80–325 mesh) is a critical raw material—used for everything from cement additives to ceramic glazes. But producing consistent, fine stone powder at scale requires equipment that balances efficiency, fineness control, and low energy use. The Raymond Mill YGM160 stands out as a leading stone powder making machine, engineered to grind non-metallic minerals (limestone, marble, gypsum) into ultra-fine powder with precision.
The Raymond Mill YGM160 is a vertical roller mill (a type of Raymond mill, a classic design optimized for fine grinding) tailored for stone powder production. Unlike generic grinders, it’s built to handle non-metallic minerals with Mohs hardness ≤9.3 (e.g., limestone, calcite, barite) and produce uniform powder across a wide fineness range. Key specs that define its performance:
● Capacity: 8–20 TPH (tons per hour) – ideal for medium-scale operations (e.g., 60–160 tons of powder daily).
● Fineness range: 80–325 mesh (180–45μm) – adjustable to meet industry needs (80 mesh for cement, 325 mesh for paint fillers).
● Power: 75kW main motor + 11kW fan motor – balances grinding power and energy efficiency.
● Feed size: ≤30mm – works with pre-crushed stone (no need for extra coarse grinding steps).
The YGM160’s workflow is simple yet efficient, ensuring consistent powder quality with minimal waste:
● Feeding: Pre-crushed stone (≤30mm) is fed into the mill’s hopper via a vibrating feeder, which controls the feed rate to avoid overloading.
● Grinding: Inside the mill, 5–6 rotating rollers press the stone against a stationary “bull ring” (a circular grinding plate). The rollers’ pressure and rotation grind the stone into fine powder.
● Classification: A high-speed fan blows the powder upward into a classifier (a rotating impeller). Particles that meet the target fineness (e.g., 200 mesh) pass through the classifier and enter the collection system; coarser particles fall back to the grinding chamber for reprocessing.
● Collection: Qualified powder is captured by a pulse bag filter (99.9% collection rate), then discharged into a silo for storage or packaging.
● Dust Control: The sealed fan and pulse filter prevent dust leaks, keeping emissions ≤20mg/m³ (compliant with EU CE and US EPA standards).
Industries like ceramics and cosmetics demand powder with consistent particle size—uneven powder causes defects (e.g., uneven glaze application). The YGM160’s classifier uses precision impeller blades to control fineness within ±5 mesh (e.g., 200±10 mesh). For example, a calcium carbonate plant using the YGM160 produces 200-mesh powder for plastic fillers—its uniformity reduces plastic product rejection rates by 15%.
Many small grinders consume 50–60 kWh per ton of powder; the YGM160 uses just 35–45 kWh/ton. How? Its roller-bull ring design uses compressive force (vs. high-speed impact) to grind stone, requiring less energy. For an 8 TPH operation, this saves ~200–300 monthly on electricity (at $0.25/kWh).
Stone grinding is abrasive, but the YGM160’s key parts are built to last:
● Rollers & Bull Ring: Made of high-chromium alloy (Cr20), they resist wear and last 8–12 months (twice as long as standard steel parts).
● Sealed Bearings: Keep stone dust out of the roller shaft, extending bearing life to 18–24 months.
● Easy Maintenance: Rollers and bull rings can be replaced in 4–6 hours (no heavy lifting equipment needed), reducing downtime.
The YGM160 isn’t limited to one mineral—it grinds a range of non-metallic stones:
● Limestone: 80–150 mesh powder for cement, 200–325 mesh for animal feed additives.
● Gypsum: 150–200 mesh powder for drywall, 325 mesh for dental plaster.
● Barite: 200–325 mesh powder for oil drilling mud (its high density prevents well collapse).
The YGM160 Raymond Mill is an ideal solution for processing plants, mining operations, and large-scale powder production facilities looking to upgrade their capacity and quality. If you are interested in the raymond mill plant, please click on the online consultation to get solution and price now. Baichy Machinery is dedicated to serving you 24 hours a day!
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