We have considered the falling dart test on JKMRC method needed for energy index calculating and is used to plan production capacities during the material’s grinding in an earlier article.

The SMC method is a simplified falling load test that was developed in 2004. This test is carried out on the same equipment as the JKDWT test. The ability to test on one size type of the test material makes it less labor intensive and more applicable for the field development.

For the test it is recommended to use a sample of particles with a particle size of -31.5 26.5 mm. Therefore, the calibration coefficient between the values of the two tests approaches one (A * b = 1). The result of the SMC test is the falling load index DW_{i}, which is measured in kW * h / m^{3} and is calculated according to the formula:

where: ρ is the average density of the test ore;

A*b is the value of the combined parameter.

Thereafter, the energy indexes of related equipment are determined and specific energy consumption of the ore preparation technological cycles are calculated using a statistical analysis of the available database compiled from the results of the SMC test.

To date, the SMC test database is composed of 35,000 different samples of deposits around the world (more than 80 countries).