If your current equipment has a power of 8hp, then you only need to buy a 10hp unit. If the power increases to 18hp, 28hp, or 50hp in the future, you only need to increase the number of our units. For example, 18hp = 10hp * 2, 50hp = 10hp * 5. This way, you can increase the number of units you need in the future, reducing your equipment cost investment.
By vevor