EVALUASI KINERJA ALAT GALI MUAT DAN ALAT ANGKUT DALAM MENDUKUNG TARGET PRODUKSI DI CV. TAPIAN NAULI MALAU JL. MEREK SIDIKALANG KM.1 KELURAHAN MEREK KABUPATEN KARO

Abstrak

This research was conducted at CV. Tapian Nauli Malau, located in Tappe-Tappe Hamlet, Simpang Bage Village, Pamatang Silimahuta District, Simalungun Regency. The IUP land area is 14 hectares, but intensive exploration is being conducted on an area of 8.12 hectares. Problems encountered in the mining process include the low production capacity of the current mechanical equipment due to reduced effective working time, resulting in decreased equipment efficiency due to work bottlenecks and inconsistencies in the established scheduling system. Problem solving is carried out based on analysis of data obtained in the field based on literature related to the problem. The results of the study found that the crushed stone mining carried out by CV. Tapian Nauli Malau uses 1 unit of Komatsu PC 200 Exavator Loading and Digging equipment, while the transport equipment uses 4 units of the Cunter 125 PS Dump Truck type. Before the improvement, the productivity bottleneck time of the Exavator was 24,520.50 tons/month and the transport equipment was 18,890.63 tons/month, with a match factor of the loading and digging equipment of 0.84. After improvements were made to the bottleneck time and cycle time of the transport equipment, an increase in the working hours of the transport equipment was obtained which was very effective in achieving production targets, actual working hours were 172.47 hours/month and after improvements to 187.2 hours/month, so that work productivity increased by 26,643.95 tons/month. The company's production target is 20,000 tons/month. Production before the repair was 18,890.63 tons/month. After the repair, production increased to 26,643.9 tons/month, a 41.04% increase.