Whether you're running a ceramics factory, supplying glass manufacturers, or investing in mining operations — an efficient feldspar crushing and grinding system directly impacts your production cost and profit per ton.
In this practical guide, we'll walk you through the entire process—from raw feldspar rock to high-value feldspar powder—and help you choose the right crushing and grinding solution based on your needs.
Why feldspar matters
- Crushed feldspar: Used in glassmaking, construction aggregates, and road base materials.
- Ground feldspar powder: A critical ingredient in ceramics, coatings, plastics, agriculture, and high-end glass production.
If you want to sell feldspar at a higher price, you need tight control over particle size, purity, and consistency.
If you want steady output and lower energy bills, you need the right equipment that's both efficient and reliable.
Feldspar crushing & grinding process flow
- 1 Primary crushing: Large feldspar rocks are broken into small pieces by a jaw crusher.
- 2 Screening: Oversized particles are removed with a vibrating screen.
- 3 Secondary crushing: Impact crushers or cone crushers further reduce the size for better grinding performance.
- 4 Beneficiation (if needed): Magnetic or flotation separation is used to remove quartz, mica, or iron impurities.
- 5 Grinding: Feldspar is ground to the required fineness—typically between 20 mesh and 800 mesh.
- 6 Classification & packaging: Powder is sorted by fineness and packaged for sale.
Tip: If you're working with high-purity feldspar (like potash or soda feldspar), you may skip the feldspar beneficiation step. But if your ore contains quartz or iron, pre-grinding separation is essential for product quality.
Crushing equipment for feldspar
1. Primary crusher – Jaw crusher
Handling large feldspar rocks? Our jaw crusher is your first step to efficient production.
Ideal for input size: 125–1000 mm
Deep crushing chamber + heavy-duty toggle plate: Breaks big feldspar chunks with ease, no clogging
High reduction ratio + high capacity: Up to 1000 tons/hour
Easy to maintain: Quick wear-part replacement keeps downtime minimal and output steady
2. Secondary crusher – Impact crusher
If you're producing construction-grade aggregates or export filler and want fast ROI on a lower budget, an impact crusher is a great option.
Input size: up to 800 mm
Strong crushing force for fine, uniform particles
Produces well-shaped output (low flake content, high cube rate)
Best for soft to medium-hard feldspar, with low quartz or iron content
Tip: If your feldspar contains high quartz or is very hard, a feldspar cone crusher is a better choise. It handles tough materials, runs continuously, and offers higher output.
Grinding equipment for feldspar
At FTM Machinery, we offer 4 proven grinding solutions—designed to match your production scale, budget, and powder requirements.
Whether you're starting a new project or upgrading an existing feldspar production line, here is what you need to know.
1. Raymond mill – budget-friendly, easy to start
Looking to start feldspar grinding on a tight budget? The Raymond mill is your go-to solution.
It is not only simple to operate and low in cost, but also has fast output. It can easily grind out high-quality feldspar powder of 80–325 mesh, meeting the needs of most medium and low fineness applications.
Why choose Raymond Mill? Get the latest quote
- Compact footprint: Fits into small spaces, no extra construction needed
- Fast setup: Quick install and commissioning—get to market sooner
- High ROI: Costs less than 1/3 of a vertical mill, yet meets up to 80% of market demand
2. Vertical roller mill – high capacity & energy efficient
Running a large feldspar processing plant? Focused on energy savings and scale? A vertical mill is the first choice, with a maximum output of 400 t/hour and up to 30% lower energy costs.
With built-in drying function, it can process raw feldspar with a moisture content of up to 15%, without pre-drying. Fineness range up to 14–400 mesh for medium to fine feldspar powder.
What you get with a Vertical Mill: Get the latest quote
- Ultra-high output: Handles 10–420 TPH, perfect for mid-to-large scale expansion
- Lower energy costs: Up to 30% energy savings over ball mills—save thousands yearly
- Smart control system: Stable product quality, consistent particle size—sell at better prices
3. Ultrafine mill – for high-value fine powder
Need ultra-white, ultra-fine feldspar powder? Our feldspar ultrafine mill delivers the finest output in the industry, with powder fineness reaching 800 mesh.
Why choose Ultrafine Mill? Get the latest quote
- Extreme fineness: Precision grinding for premium markets
- Consistent size: Stable particle size = stable performance
- Flexible use: Works with potassium, sodium, or mixed feldspar ores
4. Ball mill – for wet grinding & tough materials
When you are dealing with difficult raw materials or want to perform wet processing of feldspar, you need a machine that is both stable and flexible - a ball mill.
Best for 20–200 mesh powder, especially wet grinding of low-whiteness or high-impurity feldspar.
What you get with a Ball Mill: Get the latest quote
- Wet/Dry options: Switch between dry and wet grinding as needed
- Broad feed range: Accepts uneven or coarse materials easily
- Low contamination: Optional ceramic liners reduce iron pollution
- Small, medium & large-scale capacity coverage: From 1 ton/hour to 208 tons/hour
How to choose the right grinding mill?
| Your production needs | Recommended grinding mill type | Why |
| Small-scale ceramics/filler plant with limited budget | Raymond Mill | Lower cost, easy maintenance, ideal for 80–325 mesh standard powders |
| Mid-to-large glass or ceramics production, high output | Vertical Roller Mill | High capacity, energy-efficient, built-in drying system for wet feldspar |
| High-end cosmetics or ultra-white glass, ultra-fine powder required | Ultrafine Mill | Fineness up to 800 mesh, with precision particle size control (±5 microns) |
| Wet grinding or irregular raw materials | Ball Mill | Supports dry/wet grinding, highly adaptable, ideal for mid-scale mineral processing |
Not sure which grinding mill fits your needs?
Contact us —our engineers will recommend the right solution based on your feldspar grade, fineness target, and budget.
Feldspar processing customer cases
1. Malaysia – Ceramic-grade potassium feldspar grinding line
A local supplier of raw materials for ceramic factories. Their main material is medium-hardness potassium feldspar, targeting a finished product of 200–325 mesh feldspar powder for use in ceramic glazes and body fillers. The client had high requirements for powder fineness consistency and whiteness.
FTM Machinery solution:
We designed a compact, easy-to-operate, and low-maintenance medium-scale grinding line tailored to their needs. The core equipment included:
- 4119 Raymond mill – Main grinding machine, output up to 6–9 tons/hour
- Pulse dust collector + automatic packing machine – Ensures clean emissions and efficient packaging
Project results:
| Metric | Before | After |
| Finished powder fineness | Inconsistent, avg. 180 mesh | Stable output at 200–325 mesh |
| Output capacity | 3 tons/hour | 7 tons/hour (+130%) |
| Energy consumption | 68 kWh/ton | 44 kWh/ton (35% reduction) |
| Waste rate | ~12% | <2% |
| Whiteness control | No screening | Cyclone separator added, +12% brightness |
Customer Feedback:
"After using FTM Machinery equipment, our product quality improved significantly, and customer satisfaction led to more repeat orders."
— Lin Zhiming, Project Manager
2. USA – Full upgrade: crushing + grinding + beneficiation line
Located in Utah, this client is a feldspar mining company focused on exporting glass-grade potassium feldspar. Their old production line had low capacity and high energy use, and it no longer met export quality standards.
FTM Machinery upgrade solution:
After on-site evaluation, our engineering team delivered a fully integrated crushing–beneficiation–ultrafine grinding system:
- PE600×750 Jaw crusher/PF-1214 Impact crusher: Crushing to ≤30 mm
- HGM Ultrafine mill – Produces 800 mesh powder, 120 tons/day output
- 3-Stage magnetic separator – Removes iron for higher purity
- Smart control system + auto bagging –reduces labor, improves efficiency
Customer feedback:
"FTM helped modernize our aging plant. Output jumped by 40% without compromising powder quality. We now meet EU standards and secured two new overseas clients."
— Mike S., Operations Director
Conclusion & free quote
Feldspar, when properly processed, offers excellent profit potential.
Want to know which equipment best fits your needs? Curious how quickly you can get ROI from feldspar processing?
Contact FTM Machinery Engineers Today for a custom solution and accurate quote. Contact us
