How to calculate double roll crusher tph?

To calculate the tph (tons per hour) of a double roll crusher, you need to know the following information:

Feed size: The size of the material being fed into the crusher. It is usually measured in millimeters (mm).

Product size: The desired output size of the crushed material. It is also measured in millimeters (mm).

Reduction ratio: The ratio of the maximum feed size to the product size. It determines the degree of size reduction achieved by the crusher.

Crusher efficiency: The efficiency of the crusher in terms of how well it converts input energy into output material. It is usually represented as a percentage.

Once you have these parameters, you can use the following formula to calculate the tph:

Tph = (F × P) / (R × E)

Where:

F = Feed size in mm
P = Product size in mm
R = Reduction ratio
E = Crusher efficiency (expressed as a decimal)
Let's assume you have a double roll crusher with the following specifications:

Feed size (F) = 300 mm
Product size (P) = 15 mm
Reduction ratio (R) = 5
Crusher efficiency (E) = 90% (0.9 as a decimal)
Using the formula, the calculation would be:

Tph = (300 × 15) / (5 × 0.9)
Tph = 4500 / 4.5
Tph = 1000

Therefore, the tph for this double roll crusher would be approximately 1000.