2.3 - Total Cost Calculation Using Caterpillar Method
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Introduction to Cost Calculation
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Today we're learning about the Caterpillar method for calculating total costs of equipment. What do you think is the importance of understanding these costs?
It helps in budgeting for projects.
And it can help decide if an equipment investment is good, right?
Exactly! This method combines various costs into a cohesive estimate, including ownership and operating expenses. Let's break down what ownership costs involve.
Ownership Costs
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Ownership costs include depreciation, interest, insurance, and taxes. Can anyone tell me how we calculate depreciation?
Is it the initial cost minus the salvage value?
Close! We also factor in the tire cost divided by the useful life. Let's see it in action with our dump truck example.
Can you remind us how to calculate the useful life?
Sure! It's the total expected usage divided by annual usage. This makes it easier to visualize the machine's lifespan.
Operating Costs
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Now, let's dive into operating costs. Fuel consumption can heavily impact our expenses. How is it calculated?
Is it based on liters per hour per horsepower?
Exactly! We also look at other factors like tire costs and repair costs. Any guesses on how to compute repair costs?
It’s some percentage of the initial cost, minus tire cost?
Right, with specific percentages applied based on guidelines.
Total Cost Calculation
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Finally, we add ownership and operating costs together to compute total costs. What is our formula?
Total cost equals total hourly ownership cost plus total hourly operating cost plus operator wages.
Well done! This comprehensive approach ensures we don't overlook any costs.
So with these calculations, we can better plan our budget for upcoming projects!
Introduction & Overview
Read summaries of the section's main ideas at different levels of detail.
Quick Overview
Standard
In section 2.3, the Caterpillar method is explored as a systematic approach to estimating the total costs associated with equipment, including both ownership and operating costs, using a case study of an off-highway dump truck. Key elements such as depreciation, insurance, operating wages, and fuel consumption are calculated to arrive at a comprehensive cost analysis.
Detailed
In section 2.3, we explore the Caterpillar method for total cost calculation, critically important in equipment management. The method involves estimating both ownership and operating costs of a piece of heavy equipment, exemplified here through an off-highway dump truck. Key calculations include initial cost, depreciation, maintenance, and operational expenses. This method allows for a structured understanding of costs, ultimately aiding in better budgeting and financial planning in construction and heavy machinery operations. The section emphasizes the significance of accurate estimations using standard guidelines—specifically the Peurifoy guidelines—and illustrates the process using concrete examples, ensuring learners grasp the full picture of total cost management.
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Overview of Total Cost Calculation
Chapter 1 of 7
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Chapter Content
So just add up everything the ownership cost all the operating cost and operating wages also you will get the total ownership and the operating cost following the Peurifoy guidelines.
Detailed Explanation
This chunk introduces the concept of total cost calculation in machinery and equipment management. It explains that to find the total cost, one must sum three key components: ownership costs, operating costs, and wages. This approach follows the guidelines established by Peurifoy, a recognized authority in construction engineering.
Examples & Analogies
Imagine you are planning a party. To find out how much it will cost, you would add up the costs of food (operating costs), rental space (ownership costs), and tips for staff (wages). This total gives you a clear understanding of the overall expense.
Estimating Cost for a Dump Truck
Chapter 2 of 7
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Chapter Content
Now let us workout from examples on how to estimate the equipment cost using these 2 methods.
Detailed Explanation
Here, the discussion shifts to practical application through examples. Specifically, it refers to estimating the cost of a dump truck, which is categorized as an 'off-highway' truck, meaning it operates exclusively on construction sites and is not street legal.
Examples & Analogies
Consider a specialized delivery truck used for transporting goods within a factory. Just like the truck can only operate on factory grounds, the dump truck is designed solely for project sites, which impacts its cost structure and how we calculate its expenses.
Calculating Depreciation
Chapter 3 of 7
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Chapter Content
Now let us calculate the depreciation first. Depreciation = (Initial price − Tire cost) / Useful life.
Detailed Explanation
This chunk highlights how to calculate the depreciation of the dump truck's cost. Depreciation spreads out the initial expense of the truck over its useful life, which is determined by how much it is projected to be used over the years.
Examples & Analogies
Think of a new smartphone that costs $1000. If you expect to use it for 5 years, you might factor in that each year, it loses value (depreciates) by $200. This helps you understand the cost of using the smartphone over its lifespan.
Ownership Cost Components
Chapter 4 of 7
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Chapter Content
The other associated costs are the interest rate which is nothing but 8% insurance 2% and taxes 3%.
Detailed Explanation
In this segment, the focus is on additional ownership costs that need to be factored in. These costs include interest on the cost of investment, insurance fees, and taxes, each expressed as a percentage of the average machine value.
Examples & Analogies
If you buy a house, you not only consider the mortgage payment but also property taxes, homeowner's insurance, and interest on the mortgage. Similarly, the dump truck incurs several additional costs beyond its initial purchase price.
Calculating Total Hourly Costs
Chapter 5 of 7
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Chapter Content
Now let us calculate all the total ownership cost components, which are the hourly depreciation, interest, insurance, and taxes.
Detailed Explanation
This chunk explains how to compile all ownership cost components into a single hourly cost. By calculating each cost component as an hourly rate and summing them up, one can better understand the financial implications of operating the equipment.
Examples & Analogies
Consider how a gym calculates the hourly cost of maintaining a gym. They would look at costs such as rent, staff wages, maintenance fees, and divide these by the number of hours the gym is open. This gives them a clear view of how much it costs to operate per hour.
Operating Costs Estimation
Chapter 6 of 7
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Chapter Content
Let us move on to the operating cost estimation.
Detailed Explanation
This passage transitions to calculating operating costs, which are the recurring expenses incurred through the operation of the dump truck. This includes fuel consumption, maintenance, labor, and other operational expenditures.
Examples & Analogies
When running a restaurant, daily expenses such as ingredient costs, employee wages, and utilities are considered operating costs. Understanding these is crucial for determining the profitability of the restaurant just like it's essential for managing a dump truck.
Final Calculation of Total Cost
Chapter 7 of 7
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Chapter Content
So you know that the total hourly ownership cost, operator wages, and total hourly operating cost. Add all this 3 you will get the total equipment cost.
Detailed Explanation
The concluding part emphasizes the importance of combining all the computed costs (ownership costs, operator wages, and operating costs) to arrive at the total equipment cost per hour, which is crucial for budgeting and financial planning in construction projects.
Examples & Analogies
Just like calculating the total cost of a road trip involves summing fuel costs, food expenses, and accommodation, calculating the total cost of operating a dump truck requires tallying all related costs to understand its financial demands.
Key Concepts
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Caterpillar Method: A systematic method for calculating total equipment costs.
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Ownership Costs: Costs related to the ownership of equipment, including depreciation.
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Operating Costs: Costs incurred while operating the equipment, such as fuel and labor.
Examples & Applications
The estimated total hourly cost for an off-highway dump truck is calculated by adding ownership costs and operating costs.
Calculating depreciation using the formula: (Initial Price - Tire Cost) / Useful Life to determine the annual depreciation on the equipment.
Memory Aids
Interactive tools to help you remember key concepts
Rhymes
To own means to pay, don't delay—depreciate and calculate to keep costs at bay.
Stories
Imagine a truck that works day and night, its costs add up in sheer delight. Count depreciation, fuel, and wages too, that's the Caterpillar method, tried and true.
Memory Tools
D.I.T.T. (Depreciation, Insurance, Taxes, Total cost) helps remember the costs in ownership.
Acronyms
C.O.T. (Caterpillar Ownership Total) helps remind us of calculating equipment costs.
Flash Cards
Glossary
- Depreciation
The reduction in value of an asset over time, accounting for wear and tear.
- Ownership Cost
Costs associated with the ownership of equipment, including depreciation, interest, insurance, and taxes.
- Operating Cost
Expenses incurred while operating equipment, such as fuel and maintenance.
- Useful Life
The expected duration that an asset remains usable for its intended purpose.
- Operating Wages
The cost of labor associated with operating the equipment.
Reference links
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