The image above represents shaft power | ball mill length.

To compute for shaft power | ball mill length, six essential parameters are needed and these parameters are **Value of C, Volume Load Percentage (J), % Critical Speed (V _{cr}), Bulk Density (s.g), Mill Length (L)** and

**Mill Internal Diameter (D).**

The formula for calculating shaft power | ball mill length:

P = 7.33 x C X J X V_{cr} x (1 – 0.937) x [1 – ^{0.1}/_{29 – 10Vcr}] x s.g. x L x D^{2.3}

Where:

P = Shaft Power | Ball Mill Length

J = Volume Load Percentage

V_{cr} = % Critical Speed

sg = Bulk Density

L = Mill Length

D = Mill Internal Diameter

Let’s solve an example;

Find the shaft power | ball mill length when the volume load percentage is 8, the %critical speed is 10, the bulk density is 3. the mill length is 14 and the mill internal diameter is 16.

This implies that;

J = Volume Load Percentage = 8

V_{cr} = % Critical Speed = 10

sg = Bulk Density = 3

L = Mill Length = 14

D = Mill Internal Diameter = 16

P = 7.33 x C X J X V_{cr} x (1 – 0.937) x [1 – ^{0.1}/_{29 – 10Vcr}] x s.g. x L x D^{2.3}

P = 7.33 x 1 x 8 x 10 x (1 – 0.937) x [1 – ^{0.1}/_{29 – 10(10)}] x 3 x 14 x 16^{2.3}

P = 36.94 x [1 – ^{0.1}/_{2-91}] x 3 x 14 x 588.133

P = 36.94 x [1 – ^{0.1}/_{4.038e-28}] x 24701.609

P = 36.94 x [1 – 2.47e+26] x 24701.609

P = 36.94 x -2.475e+26 x 24701.609

P = -2.259

Therefore, the **shaft power | ball mill length **is **– 2.259 W.**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the shaft power | ball mill length.

To get the answer and workings of the shaft power | ball mill length using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

To get access to the **professional **version via web, you need to **register** and **subscribe **for** NGN 2,000 **per** annum** to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials and Metallurgical **under **Engineering****.**

Now, Click on **Ball Mill Sizing**** **under **Materials and Metallurgical**

Now, Click on **Shaft Power | ball mill length **under **Ball Mill Sizing**

The screenshot below displays the page or activity to enter your values, to get the answer for the shaft power | ball mill length according to the respective parameters which is the **Value of C, Volume Load Percentage (J), % Critical Speed (V _{cr}), Bulk Density (s.g), Mill Length (L)** and

**Mill Internal Diameter (D).**

Now, enter the value appropriately and accordingly for the parameter as required by the **Value of C** is **1**,** Volume Load Percentage (J)** is **8**,** % Critical Speed (V _{cr})** is

**10**,

**Bulk Density (s.g)**is

**3**,

**Mill Length (L)**is

**14**and

**Mill Internal Diameter (D)**is

**16**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia solves for the shaft power | ball mill length and presents the formula, workings and steps too.