(Mining mill) Autogenous mill

Pengfei group has developed large-scale autogenous mill, semi autogenous mill, overflow mill and air swept mill by increasing cooperation with scientific research institutions for many years. Widely used in metallurgy, mining, cement, power and other industries. "Pengfei" brand ball mill takes full account of the operating conditions of users, improves the internal conditions of the mill continuously according to the partition plate and discharge grate plate, provides new linerplate as required, adjusts the mill speed, optimizes the gear design and bearing pad lubrication parameters, increases the stability and service life of the mill, and improves the grinding efficiency. Autogenous tumbling mill, also known as media free ore mill. According to the working conditions, it can be divided into dry self grinder and wet self grinder. The workingprinciple of the self grinder is different from that of the ball mill. The diameter of the self grinder cylinder is larger, and the grinding medium such as steel ball is not used. The crushed material itself is used as the medium to impact each other in the cylinder to achieve the purpose of grinding. A small amount of steel balls can also be added to the autogenous mill to improve the treatment capacity, which usually only accounts for 2-3% of the effective volume. The ore that can be processed by autogenousmill includes asbestos, iron ore, copper ore, limestone, gold ore, lithium ore, manganese ore and other non-ferrous metal minerals. The biggest characteristic of autogenous mill is large crushing ratio. The autogenous mill has two functions of crushing and grinding. The autogenous mill can directly add the raw ore or the uncrushed ore in the quarry to the autogenous mill. It can grind the material to0.074mm at one time, which accounts for more than 20% ~ 50% of the total product. The crushing ratio can reach 4000 ~ 5000, which is more thanten times higher than the efficiency of the ball mill and the rod mill. According to the grinding process and whether to add ball or not, the autogenous mill is divided into autogenous mill and semiautogenous mill. According to the different structure and method of autogenous mill, autogenous mill can be divided into dry autogenous mill and wet autogenous mill.
Contact Us Quick Inquiry


Pengfei group has developed large-scale autogenous mill, semi autogenous mill, overflow mill and air swept mill by increasing cooperation with scientific research institutions for many years. Widely used in metallurgy, mining, cement, power and other industries. "Pengfei" brand ball mill takes full account of the operating conditions of users, improves the internal conditions of the mill continuously according to the partition plate and discharge grate plate, provides new liner plate as required, adjusts the mill speed, optimizes the gear design and bearing pad lubrication parameters, increases the stability and service life of the mill, and improves the grinding efficiency. Autogenous tumbling mill, also known as media free ore mill. According to the working conditions, it can be divided into dry self grinder and wet self grinder. The working principle of the self grinder is different from that of the ball mill. The diameter of the self grinder cylinder is larger, and the grinding medium such as steel ball is not used. The crushed material itself is used as the medium to impact each other in the cylinder to achieve the purpose of grinding. A small amount of steel balls can also be added to the autogenous mill to improve the treatment capacity, which usually only accounts for 2-3% of the effective volume. The ore that can be processed by autogenous mill includes asbestos, iron ore, copper ore, limestone, gold ore, lithium ore, manganese ore and other non-ferrous metal minerals. The biggest characteristic of autogenous mill is large crushing ratio. The autogenous mill has two functions of crushing and grinding. The autogenous mill can directly add the raw ore or the uncrushed ore in the quarry to the autogenous mill. It can grind the material to 0.074mm at one time, which accounts for more than 20% ~ 50% of the total product. The crushing ratio can reach 4000 ~ 5000, which is more than ten times higher than the efficiency of the ball mill and the rod mill. According to the grinding process and whether to add ball or not, the autogenous mill is divided into autogenous mill and semiautogenous mill. According to the different structure and method of autogenous mill, autogenous mill can be divided into dry autogenous mill and wet autogenous mill.

Advantages of autogenous mill

① The autogenous mill process reduces the crushing, grinding and transportation equipment, reduces the technological process, and reduces the capital construction investment;
② Autogenous mill reduces the consumption of grinding medium, power consumption and equipment maintenance cost;
③ It is suitable for non-ferrous minerals such as asbestos, iron ore, copper mine, limestone, gold mine, lithium mine, manganese mine, etc;
④ The phenomenon of over grinding of autogenous mill is less, which is beneficial to improve the beneficiation index, concentrate grade and recovery rate.


Cylinder diameter (mm) Cylinder length (mm) Effective area of cylinder (m3) Rotating speed at work (r/min) Power of main motor (kw)
4000 1600-3600 19-42 16.2 240-540
4500 1800-4100 27-61 15.3 360-830
5000 2000-4500 38-83 14.5 530-1200
5500 2200-5000 51-112 13.8 740-1700
6100 2400-5500 69-152 13.1 1050-2400
6700 2700-6000 93-201 12.5 1500-3300
7300 2900-6600 120-264 12 2000-4500
8000 3200-7200 160-347 11.4 2800-6200
8600 3400-7700 197-429 11 3500-7900
9200 3700-8300 246-530 10.7 4500-10000
9800 3900-8800 296-640 10.3 5600-12500
10400 4200-9400 359-770 10 7000-15400
11000 4400-9900 422-909 9.8 8400-19000
11600 4600-10400 492-1064 9.5 10000-22000
12200 4900-11000 580-1246 9.2 12000-27000