Horsepower (\( HPh \)):

\[ HPh = \frac{h \cdot C \cdot 1.015}{0.3048 \cdot 1000} \]

Where:

• \( HPh \) is the horsepower to lift materials, in horsepower (hp).
• \( h \) is the lift, in meters (m).
• \( C \) is the capacity, in tons per hour (tph).