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AUTOGENOUS MILL

Feeding Size: ≤400mm
Discharging Size: 0.074-0.89 mm
Motor Power: 55-2500 kW
Customization: support
Material: various metals, nonmetallic ores, rocks, etc.

Autogenous mills are also known as AG mills which is an acronym for autogenous grinding mills. It is so-called due to the self-grinding of raw materials inside the grinding chamber: a rotating drum throws large-sized raw materials in a cascading motion which causes impact breakage of larger particles and compressive grinding of finer particles. The autogenous mill is similar in operation to a SAG mill but does not use grinding media. Compared with the ball mill grinder, it has a larger cylinder diameter and greater production capacity.

The autogenous mill can process materials of any property, especially when grinding asbestos, iron ore, copper ore, limestone, gold ore, manganese ore, etc. It has a large grinding ratio, up to 4000-5000, and the feeding size is generally 300-400mm (910mm in special cases). After grinding, the material particle size can reach 0.1mm or less. Besides, its grinding efficiency is much higher than ball mills and rod mills.

Features

It has both crushing and grinding functions.
It can pulverize raw ore and coarsely crushed ore directly.
It has a large cylinder diameter and the inner side is inlaid with T-shaped lining plates.
It uses advanced technologies such as hydrostatic bearing to eliminate the static resistance torque at start-up.

AGICO offers both dry grinding AG mills and wet grinding AG mills. At present, wet AG mills are more widely used. In addition to high-quality equipment, we also provide customers with free material testing services, free installation services, and free maintenance services. If you need the autogenous mill, please feel free to contact us!

autogenous mill structure
Autogenous Mill Structure

HIGHLIGHTS OF AG MILL

High Efficiency
Raw ores can be directly fed into the autogenous mill without crushing in advance to reach the required fineness at one time.
Low Investment
The autogenous mill simplifies the process flow, occupies a small area, and needs few supporting devices. It greatly reduces the cost of investment.
Good Grinding Effect
The autogenous mill has a good selective grinding effect and less over-grinding phenomenon. It is conducive to improving the beneficiation index, concentrate grade, and concentrate recovery rate.
Wide Application
The autogenous mill has a wide range of applications and is not limited by the ore type. It is widely used in the building material industry, refractories industry, fertilizer industry, nonferrous metal beneficiation, glass industry, ceramics industry, etc.
autogenous mill onsite
Autogenous Mill Onsite

SPECIFICATION

ModelCylinder Diameter(mm)Cylinder Length(mm)Feeding Size(mm)Motor ModelMotor Power(kW)Motor Rotation Speed(r/min)Motor Voltage( V)Lubrication Station(1/min)
AG24092400900≤250Z2—1115560022016
AG401440001400<350JR138-824573538035
AG551855001800<400TDMK800-368001673000/600050
AG603060003000<400TM1250-14/17301250428.56000100
AG752575002500<400TM2500-16/215025003756000100
AG752875002800<400TM2500-16/215025003756000100

DRY AG MILL VS WET AG MILL

Dry Grinding AG Mill Features

The cylinder body is inlaid with T-shaped lining plates. They are mainly used to strengthen the impact breakage of materials.
The cylinder body and hollow shaft journal are short. It is conducive to feeding and material classification so as to shorten the residence time of materials and improve the production capacity.
After being ground, the material is discharged from the autogenous mill with the airflow and then enters the corresponding classification equipment. The coarse material will be sent back to the autogenous mill for further grinding.
The end cover is vertically connected with the cylinder meanwhile it is inlaid with crest-shaped lining plates. These lining plates can protect the end cover, prevent material segregation, and ensure the uniform distribution of materials with different particle sizes.

Wet Grinding AG Mill Features

The feeding end is equipped with a mobile feeding trolley.
The end cover liner is conical in shape. And the end cover is not vertically connected with the cylinder body.
The discharging end is equipped with grate plates and a conical screen. Qualified materials will be directly discharged from the outlet port and the unqualified materials are collected by the screen and returned to the grinding chamber through a spiral self-return device.
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