7. Cycle Time of a Scraper
Cycle time is a crucial aspect of scraper operations, encompassing fixed and variable time components. Fixed time components include loading, dumping, turning, and acceleration, while variable time is primarily influenced by haul and return distances. Proper loading practices and haul route maintenance significantly impact efficiency, with the aim of optimizing productivity and reducing costs.
Enroll to start learning
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Cycle time consists of both fixed and variable components.
- Optimal loading practices enhance scraper productivity.
- Haul route maintenance is essential for reducing cycle times and enhancing productivity.
Key Concepts
- -- Cycle Time
- The total time taken for a scraper to complete a loading, hauling, dumping, and returning cycle.
- -- Fixed Time
- The component of cycle time that does not vary based on travel distance, including loading, dumping, and turning times.
- -- Variable Time
- The component of cycle time that varies depending on travel distance, specifically including haul and return times.
- -- Load Growth Curve
- A graphical representation that illustrates the relationship between loading time and payload percentage, highlighting the diminishing returns when overloading the scraper.
- -- Pusher
- A machine that assists the scraper during the loading phase, which reduces the loading time and thereby impacts the overall cycle time.
Additional Learning Materials
Supplementary resources to enhance your learning experience.