AN EVALUATION OF LOADING EQUIPMENT OF CATERPILLAR 385 C EXCAVATOR AND TRANSPORTING EQUIPMENT OF CATERPILLAR 773 E IN THE ACTIVITY OF STRIPPING OF THE SOIL COVER SWAKELOLA B2 PACKAGE 09-218 SELF-MANAGEMENT BANKO BARAT MINE PIT 3 WEST IN REACHING TARGET

Abstract

The closing strip production target planned by PT. Bukit Asam (Persero) Tbk, Tanjung
Enim Swakelola Training Unit B2 Package 09-218 West Banko Pit Pit 3 West 720,000
BCM/Month with a distance of 1.3 km with the availability of equipment 5 units
Excavator Caterpillar 385 C and 25 units Caterpillar 773 E. Actual average productivity
of the Caterpillar Excavator 385 C is 245,07 BCM/hour and Caterpillar 773 E is 46,74
BCM/hour with production achievement 463,777 BCM/month (64%). After optimization
with improvement of work efficiency, productivity of equipment Excavator Caterpillar
385 C for 260,88 BCM/hour and Caterpillar 773 E equal to 49,76 BCM/hour obtained
production achievement 490,450 BCM/month (68%). The actual Match Factor obtained
the MF value of 0.79 with the waiting time of the Caterpillar Excavator 385 C loading
device is 34.2 seconds. After the optimization of the addition of conveyance equipment
with the availability of 5 Exc Cat 385 C and 30 Cat 773 E units, the MF value of 0.95
with the Caterpillar Excavator 385 C loading time is 5.4 seconds. There is a decrease in
waiting time from 34.5 seconds to 5.4 seconds.