Cost per Ton of Size Reduction

Normalizes annualized operating and capital expenses of comminution equipment to the mass of material treated for economic comparison.

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1. Define Input Parameters

Energy Price (P_energy)[$/kWh]

Equipment Lifespan (L)[a]

Nominal Throughput (M_dot)[t/a]

Disc Mill Specific Energy Consumption (E_spec_D)[kWh/t]

Disc Mill Maintenance Cost (C_maint_D)[$/a]

Disc Mill Wear Parts Cost (C_wear_D)[$/a]

Disc Mill Labor Rate (R_labor_D)[$/h]

Disc Mill Labor Hours (H_labor_D)[h/a]

Disc Mill Initial Capital Cost (I_cap_D)[$]

Ball Mill Specific Energy Consumption (E_spec_B)[kWh/t]

Ball Mill Maintenance Cost (C_maint_B)[$/a]

Ball Mill Wear Parts Cost (C_wear_B)[$/a]

Ball Mill Labor Rate (R_labor_B)[$/h]

Ball Mill Labor Hours (H_labor_B)[h/a]

Ball Mill Initial Capital Cost (I_cap_B)[$]

2. Engineering Output

Disc Mill Annual Energy Cost (C_energy_D)
- $/a

Disc Mill Annual Labor Cost (C_labor_D)
- $/a

Disc Mill Annual Depreciation (C_dep_D)
- $/a

Disc Mill Total Annual Cost (C_annual_D)
- $/a

Disc Mill Cost per Ton (Cost_ton_D)
- $/t

Ball Mill Annual Energy Cost (C_energy_B)
- $/a

Ball Mill Annual Labor Cost (C_labor_B)
- $/a

Ball Mill Annual Depreciation (C_dep_B)
- $/a

Ball Mill Total Annual Cost (C_annual_B)
- $/a

Ball Mill Cost per Ton (Cost_ton_B)
- $/t

Percentage Cost Advantage (Pct_Diff)
- %

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Context & Assumptions

The Cost per Ton of Size Reduction metric is a fundamental economic indicator used to normalize operating and capital expenses against the mass of material processed. It facilitates direct comparison between different comminution technologies, such as disc mills and ball mills, regardless of their scale. This calculation is essential for process selection, budgeting, and benchmarking energy efficiency in industrial grinding circuits.

Legal Disclaimer & Limitation of Liability The results provided by this tool are for educational and preliminary estimation purposes only. NO WARRANTY: MyEngineeringTools.com makes no warranties, express or implied, regarding the accuracy or applicability of these results to any specific engineering project. LIMITATION OF LIABILITY: MyEngineeringTools.com SHALL NOT BE LIABLE for any direct, indirect, incidental, or consequential damages arising from the use of this data. All results MUST be independently verified by a qualified professional engineer before implementation in any industrial or physical environment.

Cost per Ton of Size Reduction

1. Define Input Parameters

2. Engineering Output

Context & Assumptions

Understand the Engineering Principles

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