Key Factors to Consider
- Grab Volume: 12 cbm
- Bulk Density of Material: This can vary significantly based on the material. For instance, the bulk density of various materials about 0.65-2.50 tons per cubic meter. For the calculation, we can assume an average density of 1.00 tons per cubic meter.
- Cycle Time: This includes the time taken to load the grab, transport the material, unload, and return for the next cycle. Typically, this can range between 2 to 3 minutes depending on the setup and efficiency.
- Operational Efficiency: It is unlikely that the grab will operate at 100% efficiency due to breaks, slowdowns, and maintenance. An operational efficiency of around 80% is realistic.
- Working Hours: Number of operational hours per day. We'll assume 24 hours of operation with three 8-hour shifts.
Calculation
- Material Weight per Cycle: Weight per cycle=Grab Volume × Bulk Density | Weight per cycle=12cbm×1.00tons/cbm=12.0tons
- Number of Cycles per Hour: Assuming an average cycle time of 2.5 minutes: Number of Cycles per Hour= 60 / 2.5 = 24
- Tonnage per Hour: Tonnage per Hour=Weight per cycle×Number of Cycles per Hour | Tonnage per Hour=12.0 tons×24=288.0 tons
- Daily Tonnage (without considering efficiency): Daily T=Tonnage per Hour × Working Hours per Day | Daily T=288.0tons×24=6,912.0tons
- Daily Tonnage (considering 80% efficiency): Effective Daily T=Daily Tonnage × Efficiency | Effective Daily T=6,912.0tons×0.80=5,529.6 tons
Summary
- • Weight per Cycle: 12.0 tons
- • Cycles per Hour: 24
- • Tonnage per Hour: 288.0 tons
- • Daily Tonnage (without efficiency): 6,912.0 tons
- • Effective Daily Tonnage (with 80% efficiency): 5,529.6 tons
This calculation provides an estimate of the daily operation tonnage for a 12 cbm radio remote control grab operating under the given assumptions. Adjustments can be made based on actual cycle times, bulk density of the material, and operational efficiencies by GrabsIndia.com.
