How to Calculate Press Brake Stroke? (Tutorial)

A lot of press brake operators become bewildered when they are adjusting the stroke data (or Y-axis data) on the press brake controller, especially for older models. They are unsure of the correct press brake stroke to set, leading them to resort to trial and error. This is not an efficient solution.

In this article, I will demonstrate how to accurately calculate the press brake stroke length using a specific formula.

Please refer to the schematic diagram below. I will use the data from it as an example.

How to Calculate Press Brake Stroke Length

And the formula to calculate press brake stroke is:

Stroke = Daylight – Middle Plate Height – Punch Height – Die Base Height – (Die Height – 0.5V + t)

For example:

Daylight: 370mm

Max Stroke: 100mm

Stroke = 370-120-70-75-(26-0.5*8+t) = (83-t) mm

Attention should be paid when choosing the die height:

0.5V＜ Stroke ＜Max Stroke

Easy? Try it out now.

P.S.: If you are trying to determine the required ram depth (or tool stroke) for bending a specific angle, you can utilize the following online calculator.

Related reading: Press Brake Ram Depth Calculator

About The Author

Shane

As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business. Follow me at Facebook, Twitter, Linkedin or Google News