The image above represents jaw crusher rating.

To compute for jaw crusher rating, two essential parameters are needed and these parameters are **Gape Size (G)** and **Width of Crusher (W).**

The formula for calculating the jaw crusher rating:

J_{r} = GW

Where:

J_{r} = Jaw Crusher Rating

G = Gape Size

W = Width of Crusher

Let’s solve an example;

Find the jaw crusher rating when the gape size is 15 and the width of crusher is 5.

This implies that;

G = Gape Size = 15

W = Width of Crusher = 5

J_{r} = GW

J_{r} = (15)(5)

J_{r} = 75

Therefore, the **jaw crusher rating **is **75.**

**Calculating the Gape Size when the Jaw Crusher Rating and the Width of Crusher is Given.**

G = ^{Jr} / _{W}

Where:

G = Gape Size

J_{r} = Jaw Crusher Rating

W = Width of Crusher

Let’s solve an example;

Find the gape size when the jaw crusher rating is 32 and the width of crusher is 2.

This implies that;

J_{r} = Jaw Crusher Rating = 32

W = Width of Crusher = 2

G = ^{Jr} / _{W}

G = ^{32} / _{2}

G = 16

Therefore, the **gape size **is **16.**

Continue reading How to Calculate and Solve for Jaw Crusher Rating | Mineral Processing