2400x4200Rod Ball Mill Exported to Malaysia
Brief Introduction of Rod Ball Mill:
Rod mill is similar to the ball mill,but the rod mill use the steel rods as grinding media, ball mill use the steel ball as grinding media.
The rods grind the ore by tumbling within the the mill, similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling, the length to diameter ratio is maintained at 1.4 to 1.6. Rod mills accept feed up to about 50 mm (2 in.) and produce a product in the size range of 3000 to 270 mm (–4 to –35 mesh). Grinding action is by line contact between the rods extending the length of the mill. Rods tumble and spin in roughly parallel alignment simulating a series of roll crushers. This results in preferential grinding of coarse material and minimizes production of slimes.
Of the three main types of rod mill, overflow, end peripheral discharge, and center peripheral discharge only the overflow mill is in common usage. Wet grinding rod mills are normally used in the mineral processing industry. Dry grinding is used in some areas; however, it is confronted with problems and should be avoided except where absolutely necessary. Rod mills operate at lower speed than ball mills since the rods are rolled and not cascaded. For an equivalent grind, a rod mill uses less steel than a ball mill because of the lower speed and better contact between the media and ore. The rod charge must be maintained in good working condition, and broken and worn rods must be removed. Rod mills usually require greater operator attention. It is important that the rods stay essentially parallel to one another. If rods become misaligned, grinding action is lost and, more importantly, rod tangles occur. Maximum rod length is limited to about 6.1 m (20 ft). This in turn limits the length, diameter, and capacity of rod mills. The heavier rods acting upon the lifters and liners result in greater wear on the mill liners.
End Peripheral Discharge
Center Peripheral Discharge
Common Overflow Type
Rod mills normally carry 35 to 65% rod charge by volume. The limits on charge level are keeping the feed end trunnion open so that feed will get into the mill, and keeping the rod charge low so rods will not work their way into discharge openings where they can cause rod tangling.
Structure and Working Principle of Rod ball mill:
Rod mill consists barrel, feeding part, discharging part, bearing part and lubrication system. It can grind all kinds of hard grade of ore and rock materials.
Material through the feed device evenly get into the rod mill warehouse. There are different specifications grinding rods in the warehouse of rod mill. The grinding rods adhere to the rod mill cylinder rotating due to the centrifugal force when the rod mill working, then the grinding rods fall down and give the material an heavy impact when the grinding rods reach a certain height. When hit the material, coarse is to be broken firstly, then the smaller.After so many times, we would get fine materials.
Advantages of Rod ball mill
Our company adopts advanced controllable feeding and discharging technology, integrates actual grinding material which should be equipped with proper grinding body to change traditional surface contact into line contact, and this makes discharging size more homogeneous and output higher. So it is widely used in the industries such as refractory material, chemical, metallurgy and glass and so on. And it is used for grinding operation which has a high requirement on homogeneity of grinded products . In recent years, it is also used for sand making in the industry of construction.
Model | Cylinder Diameter (mm) |
Cylinder Length (mm) |
Motor Power (kW) |
Capacity (t/h) |
Max. Ball Load (t) | Weight (kg) |
MQGg 1212 | 1200 | 1200 | 22 | 0.17~4.1 | 2.4 | 9610 |
MQGg 1224 | 1200 | 2400 | 45 | 0.26~6.15 | 4.6 | 12692 |
MQGg 1240 | 1200 | 4000 | 80 | 0.34~8.3 | 7.8 | 15932 |
MQGg 1515 | 1500 | 1500 | 45 | 1.4~4.5 | 5 | 17125 |
MQGg 1530 | 1500 | 3000 | 80 | 2.8~9 | 10 | 21425 |
MQGg 1536 | 1500 | 3600 | 110 | 3~11 | 11.4 | 24213 |
MQGg 1545 | 1500 | 4500 | 130 | 3.5~12.5 | 12 | 27346 |
MQGg 1830 | 1800 | 3000 | 180 | 4.5~27 | 14 | 31850 |
MQGg 1836 | 1800 | 3600 | 180 | 4.5~29 | 13.8 | 35467 |
MQGg 1845 | 1800 | 4520 | 210 | 5~35 | 19 | 38909 |
MQGg 1856 | 1800 | 5620 | 210 | 6~40 | 22 | 41681 |
MQGg 1870 | 1800 | 7020 | 245 | 7~50 | 31.5 | 45166 |
MQGg 2122 | 2100 | 2200 | 155 |
5~29 |
20 | 38340 |
MQGg 2130 | 2100 | 3000 | 180 | 6.5~36 | 27 | 43100 |
MQGg 2136 | 2100 | 3600 | 210 | 7.5~42 | 23.5 | 45833 |
MQGg 2140 | 2100 | 4000 | 210 | 7.5~45 | 22.5 | 47262.4 |
MQGg 2145 | 2100 | 4500 | 280 | 10~50 | 23.6 | 52648 |
MQGg 2230 | 2200 | 3000 | 210 | 7.5~45 | 20.6 | 44600 |
MQGg 2430 | 2400 | 3000 | 280 | 7.2~92 | 22.5 | 59544.5 |
1>.Pre-sale services: enthusiasm
We provide you with the prophase plan, process flow design and manufacturer equipment according to your special demand.
2>.Sale services: servant
Send technicians to the jobsite for guiding the installation and adjustment, training operators and finishing the check and accept together with you.
3>.After-sale services: faithfulness
To establish long term friendship, we will regularly pay return visit to customers.
Supplying technique, building design, instruction, installation and debugging for free.
4>.We provide one-year warranty to make sure your machine runs consistently. We always offering lifelong services and provide spare parts for a long term,and repair main parts under right using for free in two years.
Till now, our products are sold to more than 100 countries, being the popular equipments in global crushing and grinding industry. We sincerely welcome friends from all over the world to visit our company and cooperate with us on the basis of long-term mutual benefits
We have manufacture as big as 3.6m ball mill,18 years experience ball mill supplier service for you.
Kindly make us know the following details:
1. Could you make us know the Ball mill size? The diameter and length.
2. How much the capacity you want to get?
3. How much the feeding size to the ball mill? We usually keep below 25mm, the smaller the better.
4. How about the discharge size?
Also we can help you do the gold ore flotation processing and leaching process. Such as flotationmachine, cyclone, crusher, thickener, leaching tank and so on.