Product Description
Ore-Driven Primary Grinding
An autogenous mill uses competent pieces of the feed itself as the grinding medium. Inside the rotating shell, lifted ore falls and breaks smaller particles by impact and abrasion.
AGICO configures the mill and surrounding circuit from representative testwork, feed-size distribution, target product size, required throughput, and downstream separation requirements.
Product Advantages
Why AG Grinding Can Simplify the Circuit
The benefits depend on ore competence and must be confirmed through representative testing.
AGICO's Reduced Grinding-Media Demand
A true AG duty operates without a routine steel-ball charge, reducing media handling for suitable ore.
The Primary Size-Reduction Duty of AGICO CEMENT
Coarse feed can perform both the grinding-medium and material roles inside one tumbling mill.
AGICO's Circuit Integration Approach
Screening, classification, pebble handling, slurry transfer, and downstream grinding are coordinated as one flowsheet.
AGICO CEMENT's Ore-Specific Selection
Mill diameter, length, speed, drive, liner arrangement, and discharge are selected from testwork rather than a generic model table.
Working Principle
Feed and Lift
Coarse ore enters the shell and is lifted by the rotating mill and liner profile.
Impact and Abrasion
Competent pieces fall through the charge and abrade the finer fraction.
Discharge and Classification
Ground material leaves for screening or classification; critical-size pebbles may be recycled or crushed.
Mill Configuration
Configuration Starts with Testwork
Ore behavior, feed distribution, circuit duty, and site interfaces determine the practical mill arrangement.
Shell and Liner Duty
Feed and Discharge Design
Drive and Support System
Applications
Where Autogenous Grinding Is Considered
AG grinding is evaluated where competent coarse ore can sustain breakage and the overall circuit benefits from primary tumbling-mill duty.
Copper-Bearing Ore
Representative copper ore can be tested for competence, product distribution, power demand, and downstream flotation requirements.
Hard-Rock Mineral Processing
AG duty may precede classification, magnetic separation, flotation, or secondary grinding when testwork supports the flowsheet.
Primary Comminution Circuits
New concentrators can integrate screening, pebble crushing, classification, and slurry handling around the selected mill.
Circuit Modernization
Existing crushing and grinding circuits may be reviewed for an AG-stage upgrade after sampling and operating-data analysis.
Contact Us for Model-Specific Parameters
Hot Tags: autogenous mill, China autogenous mill manufacturers, factory
Technical Parameters
| Selection Item | Reference Value |
| Grinding mode | Wet or dry |
| Maximum feed size | Up to 400 mm |
| Steel-ball charge | 0% for true AG duty |
| Published drive range | 15–13,000 kW |
| Published reduction range | Up to 400 mm feed toward about 75 μm |
| Test basis | Representative ore samples |
The above data is provided for preliminary reference only. Actual plant capacity, mixer configuration, storage volume, power demand, discharge height, control functions, and overall dimensions must be confirmed according to your concrete recipes, site conditions, utilities, operating schedule, and specific project requirements.
Contact AGICO CEMENT for model-specific parameters based on your ore testwork, capacity target, product size, and site conditions.
FAQ
What is the difference between an AG mill and a SAG mill?
An AG mill uses competent ore as its grinding medium. A SAG mill adds a controlled steel-ball charge to support breakage.
Can an autogenous mill process every hard ore?
No. Suitability depends on competence, size distribution, breakage response, ore variability, and the required downstream product.
Why is representative testwork necessary?
Testwork helps estimate power demand, capacity, critical-size behavior, product distribution, and the need for pebble crushing or secondary grinding.
What information should be included in an inquiry?
Provide ore type, representative test results, feed and target sizes, required throughput, wet or dry preference, site utilities, and downstream process details.
