Used in ceramic bodies, glazes, glass and welding fluxes for fluxing action.
Feldspar powder, engineered around your chemistry
Feldspar Grinding Mill
A dependable feldspar powder mill for potassium feldspar and albite, with stable fineness control, low iron contamination and a process route designed around your end use.
325-2500mesh typical range
K / Nafeldspar types
D97classifier control
1973Cronus heritage
The mineral behind the powder
Feldspar is a family of aluminosilicate minerals, not a single grade.
Potassium feldspar and sodium feldspar (albite) differ in chemistry, melting behavior and color response. The right feldspar grinding mill keeps those differences visible in the final powder.
Used in glass and ceramics where sodium flux, whiteness and predictable melting matter.
Inside the process
From hard feed to controlled feldspar powder
Cronus uses a closed-circuit ring-roller grinding system. Feed enters the grinding chamber, rollers create compression and shear, and a dynamic classifier returns coarse particles until the target cut is reached.
How the feldspar powder mill works
01Feed
Crushed feldspar enters after magnetic separation and drying.
02Grind
Rollers and ring reduce the mineral by compression and shear.
03Classify
Rotor speed sets the cut point; coarse particles recirculate.
04Collect
A pulse-jet filter recovers product under negative pressure.
- Low-iron contact surfaces for white feldspar grades
- Variable-frequency control for fineness and throughput
- Modular drying, grinding, classification and packing
See the motion
One grinding chamber, a controlled classification field
Watch the feeder, grinding zone and classifier working as one process line.
Sources and deposits
Where commercial feldspar comes from
Feldspar is abundant in the Earth's crust, but commercial feldspar requires a workable balance of alkali chemistry, low iron, consistent color and mineable reserves.
Pegmatite feldspar
Coarse crystals can yield clean potassium feldspar or albite after selective mining, crushing, magnetic separation and feldspar grinding.
Granite-derived feldspar
Weathered or beneficiated granite can provide feldspar feed, although quartz, mica and iron-bearing minerals require careful separation.
Global supply
Feldspar deposits are worked across Asia, Europe, the Americas, the Middle East and Africa, close to ceramic and glass production clusters.
Ore first, mill second
A feldspar powder mill cannot correct unsuitable chemistry. Representative feldspar testing should confirm mineralogy before equipment selection.
Fineness follows function
Choose the feldspar powder for the job
Catalogue fineness is a starting point. Confirm the final grade with a Cronus material test.
80-325 mesh
Tile bodies, sanitaryware, foundry mixes and basic glass batches.
Albite / sodium feldspar
Low-iron glass batches, ceramic glazes and predictable fluxing behavior.
Mixed feldspar
Engineered stone, welding consumables and specialty fillers after testing.
800-2500 mesh
Functional fillers and specialty coatings where D97 and whiteness are critical.
Fe₂O₃ controlReview magnetic separation and contact materials for
bright grades.
Moisture stabilityDry sticky feed before classification to protect
airflow and D97.
White powder PSDUse classifier speed and sampling to hold the
customer specification.
Typical industries: glass, ceramics, porcelain tile, sanitaryware, paint and plastics filler, engineered stone and welding consumables.
Discuss your target gradeWhy Cronus
Designed for a clean, repeatable feldspar grinding circuit
Stable fineness
Classifier and fan control hold a repeatable D97.
Lower iron risk
Selectable liners and airflow support brighter powder.
Energy-aware layout
Closed-circuit recirculation reduces over-grinding.
Serviceable structure
Replaceable wear parts shorten maintenance downtime.
Planning data
Feldspar grinding mill parameters
Indicative ranges; final model and output follow material testing.
ModelFeedFinenessCapacity*Motor
CRRM 800≤20 mm325-1250
mesh0.8-6 t/h75-132 kW
CRRM 1000≤25 mm325-1500
mesh1.2-10 t/h132-250 kW
CRRM 1250 / multi-head≤30
mm325-2500 mesh2-16 t/h250-500 kW
*Capacity varies with hardness, moisture, whiteness, feed size and final residue.
Keep the line running
Original wear parts, matched to your mill
Original rollers, rings, classifier components, pins, gearboxes and feeders, supported by our own casting capability.
Grinding rollers & rings
Matched profiles and inspection before dispatch.
Classifier components
Balanced rotors preserve your cut point.
Drive & transmission
Original gearbox and pin assemblies reduce fit-up risk.
Feeding and sealing
Air-lock feeders and seals support stable pressure.
Shaft pins
Original pins with verified tolerances for reliable assembly.
Turntable
Balanced turntable supports smooth roller movement.
Grinding ring
Wear-resistant ring matched to the roller profile.
The company behind the equipment
Cronus is a subsidiary of Guilin Mining Machinery.
Founded in 1973, Cronus carries more than 50 years of equipment manufacturing history. Our teams combine process engineering, fabrication, commissioning and service for mineral powder projects worldwide.
50+years manufacturing
1973Guilin heritage
24/7service response
Credentials include High-Tech Enterprise recognition, invention patents, ISO management systems and CE-oriented export documentation.
Field confidence
From factory test to customer site
Factory trials, customer visits and exhibition communication show how a project moves from sample to production.
Questions buyers ask
Feldspar grinding mill FAQ
What is the difference between potassium feldspar and albite?
Potassium feldspar is potassium-rich and albite is sodium-rich. Their melting behavior and whiteness differ, so select the circuit around chemistry and end use.
What fineness can a feldspar powder mill produce?
Typical configurations cover 325 to 2500 mesh; hardness, moisture and classifier settings determine the practical limit.
Can the mill process wet feldspar?
Yes, with controlled hot-air drying or a separate dryer. Stable moisture is important for airflow and collection.
How do you control iron contamination?
We review separators, contact materials and cleaning. Low-iron liners can be specified for bright grades.
Is a material test required before ordering?
It is strongly recommended to confirm power, output, fineness, moisture behavior and wear.
What equipment is included in a complete line?
A line may include feeder, crusher, dryer, mill, classifier, fan, filter, conveying, packing and controls.
How often should rollers and rings be replaced?
Wear life varies with abrasiveness, moisture, throughput and operating practice. Inspection enables planned replacement.
Can the same line make different grades?
Yes. Variable-frequency control and recipes allow grade changes, verified by sampling.
Does Cronus provide installation and training?
Yes. Scope can include layout review, supervision, commissioning, training and spare-parts planning.
How do I request a quotation?
Send feldspar type, feed size, moisture, target fineness, capacity and application for a test-based route.
Start with your material
Tell us what the powder must do.
Share your feldspar chemistry and target grade for a practical equipment route and test checklist.
WhatsApp /
phone+86 199 2122 1418Emailsales@shcronus.com
AddressRoom 801, Building 2, Shanghai Zhicheng, 8666 Hunan
Highway, Pudong, Shanghai, China