Power shovel sometimes referred to as the front shovel is a tool to explore materials where letakknya above are terebut tool. This tool has the ability to dig hard materials. If the excavated material is soft, then this tool will have trouble, which resulted in extraction time can be longer. Similarly, the condition in which the surface material to be excavated is higher than the minimum allowable height untik fill bucket. Power shovel so that productivity is highly dependent on factors excavator to dig the height and angle of rotation. For easy excavation unearthed material such as sand and gravel optimum height of approximately 30% to 50% of the level excavation. As for the land at the optimum height is generally a little less maximum height of 60% excavation. For difficult materials contained sepertu clay and rock explosion of the optimum height of the excavation about 50% of the maximum height of excavation.
Power shovel productivity depends on:
1. State materials, hard or soft
2. Field conditions or the workplace, such as slopes or high-level (bench) are explored.
3. Equipment efficiency and equipment fit dig, and the size of the device compatibility.
4. The experience of the operator.
