All mining and transportation at the mine are undertaken by contractors.
The bauxite deposit of Mainpat Bauxite mines is situated over the plateau and the surface terrain is generally flat.
As the Bauxite deposit is found in shallow depth ranging from 0.40-10.0 meter, the method of mining of Bauxite is mechanized opencast mining, crushing, sizing, and sorting, by using excavator of 1- 5 Cum bucket size, dumper of 15-25 tons capacity, water sprinkler, blast hole drill machine, 100 mm dia, dozer, grader, crusher, screens and belt conveyor etc.
The over burden is top soil & soft laterite of 0 to 3.00 meters thickness after which there is a hard overburden of thickness varying from 0 to 5.70 meters. The thickness of ore zone is 0.40 m to 4 m. In general working is of shallow depth of avg. 4 to 5 m (maximum 10 m).
The general practice is to scrap the top soil separately by dozer or excavator dumper combination and use it for directly spreading over already backfilled compacted area. Drilling and blasting is practiced in hard OB benches and ore benches. Excavation is done by excavator dumper combination.
Since the deposits are strata-bound irregular and bouldery in nature, bauxite needs to be separated from laterite and murrum. It is proposed to mechanically crush and screen the ore so as to obtain desired grade bauxite with acceptable silica content. The backfilling is done in same sequence as it is found in the nature, i.e. ........
