SAG Mill

Semi autogenous mills or SAG mills as they are often called, can perform grinding operations equivalent to two or three stages of crushing and screening. SAG mills are characterized by their large diameter and short length as compared to ball mills. The inside of the mill is lined with lifting plates to lift the material inside the mill, where it then falls off the plates onto the rest of the ore charge. SAG mills are often used as industrial grinding mill of modern concentrators, which can directly produce particle size of finished products or prepare feed materials for the downstream grinding sections.

Introduction of Semi Autogenous Grinding Mill

Like ball mill and rod mill, SAG mill also belongs to horizontal placed cylinder grinding equipment, the working principle is basically the same, which by means of processed material itself (or add a small amount of medium) in the simple body of continuous impact, rolling grinding and make the material crushing. The filling rate of steel ball in the shell of the semi-autogenous mill is a main item to distinguish SAG mill and autogenous mill. In order to eliminate the impact of the accumulation of rock, the autogenous mill allows to add about 3% of the ball (Φ80 ~ Φ120), SAG mill steel ball filling is generally 8% ~ 12%, even up to 15%.

Advantages of Semi Autogenous Grinding Mill

Reduce Lifetime Costs

The full range of specifications and wide range of applications enable SAG mills to perform grinding operations with fewer configurations than conventional mills. This helps to reduce the investment and maintenance costs of the SAG mill circuit.

Wide Application

The scope of application is wide due to complete specifications of SAG mill. The semi-autogenous mill can be equivalent to two or three stage crushing and screening, rod mill, and part or all of the ball mill grinding operation effect.

SAG mining is also the best solution for wet grinding. In this regard, the crushing and screening process is difficult to complete.

Efficient Automated Operation

From circuit design to operation and optimization, our process experts help you create an efficient heavy equipment and machinery automated process that ensures the grinding results you expect.

Through automatic operation, electricity can be saved, grinding medium and liner consumption can be reduced while increasing production capacity.

Intelligent Grinding Expert System

Unique grinding expert system can comprehensively monitor the real-time operation of the SAG mill, grinding status, and material parameters. Through computer control system, make the man-machine interaction effectively, save manpower and improve accuracy and capacity.

Learn more about the Intelligent Grinding Expert System

According to professional data sources, by far the largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. While CIC is currently capable of manufacturing SAG mills with a maximum diameter of 21' (6.5m)

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