SPECIFICATION SHEET β’ SI METRIC
CAT: BULK-HANDLING
Haul Truck Cycle & Productivity
Determine hourly fleet haulage tonnage based on excavator bucket passes, haul distance, speed, and dump cycle time.
π‘ Engineering Knowledge PrimerHaul truck fleet productivity calculates hourly material transport rate based on truck payload, travel time, and fixed spot/dump times. Balancing excavator loading rate with truck haulage cycles minimizes fleet queueing delays.
OPERATING LIMITS β Fleet-productivity calculation only; include queues, grades, delays and utilisation in project planning.
INPUT DESIGN PARAMETERS (SI)
t
km
km/h
min
CALCULATED SPECIFICATION OUTPUT
Productivity per Truck
π¦333.3 t/h
| Total Cycle Time | 18 min |
Technical Methodology & Engineering Principles
GOVERNING EQUATION
Travel Time = (Distance Γ 2 / Speed) Γ 60
Cycle Time = Travel Time + Spot & Dump Time
Productivity = Payload Γ (60 / Cycle Time)
Assumptions & Scope
100% operating efficiency factor without queueing delay.
Operating Range & Boundary
Use finite, physically meaningful inputs within the stated operating assumptions.
Peer Reference: Caterpillar Performance Handbook (Edition 49), Section 22.