The Productivity Formula
Net TPH = (Volume × Density × Fill Factor × 3600) ÷ Cycle Time × Efficiency
Each variable matters, but fill factor and duty cycle time are two that point underestimate most:
Fill Factor Reference by Material
| Material | Typical Fill Factor | Notes |
|---|---|---|
| Free-flowing sand or grain | 90–100% | Best-case material for grab productivity |
| Coal / fertilizer | 80–92% | Varies with moisture content; wet coal packs better |
| Metal scrap | 50–72% | Wide variation; heavier plate scrap fills better than light sheet |
| Demolition debris / waste | 45–68% | Mixed material sizes; irregular voids reduce fill significantly |
How to Calculate Hydraulic Grab Productivity? Tons Per Hour (TPH) Efficiency Calculator
Optimize Bulk Material Handling Cycle Times and Operational Throughput
📈 Material Handling Logistics Report
| Payload per Single Cycle: | Tons |
| Theoretical Cycles per Hour: | |
| Net Throughput (TPH): | Tons/Hr |
*TPH = (Volume × Density) × (3600 / Cycle Time) × Efficiency.
Check the performance of the hydraulic grab bucket before buying it. We developed this tool after researching.
