This ball mill also called mill for measuring bond work index is a key device for measuring grinding work index.

QM-3 Ball Mill for Measuring Grinding Work Index

Grinding work index (BOD), referring to the grindability index of cement raw materials and mixtures, is used to indicate the grinding difficulty of the material. It is measured according to the principle that to calculate the grinding work index based on output of each revolution of the mill after the material is ground to a balanced state by the specified mill. This ball mill, also called mill for measuring bond work index, is a key device for measuring grinding work index. It is widely used by teaching and researching departments for grindability test of cement raw materials and mixtures.

Main Parameters:

1. Effective size: Φ305×305mm;

2. Speed: 70r/min;

3. Motor power: 1.5kw/380v;

4. The steel balls are those used for ball bearing;

5. Ball size distribution:

Size: (mm)                        Quantity

Φ36.5                                  43

Φ30.2                                  67

Φ25.4                                  10

Φ19.1                                  71

Φ15.9                                  94

6.  Liner material of ball mill: stainless steel;

7.  Revolution counter;

8.  Capacity: 20kg.