In a previous article, we explained why the shortest stroke is optimal for efficient stamping operations. Now, let's explain how shorter strokes using an adjustable stroke press enable more parts produced per minute and provide an advantage to high-volume stamping facilities.
Most presses in our competitive market are fixed-stroke, meaning that they can only operate at one stroke length. Not only does this limit press operators in the type of forming they do on a single press, but it also has the potential to waste a lot of machine productivity.
The solution to this problem is found with adjustable stroke length.
Remember that with high-speed stamping, the optimal stroke is the shortest stroke possible. This is because the ram has less distance to travel, and therefore, the velocity is faster. With less unnecessary ram movement comes the advantage of higher speeds, resulting in more parts produced per minute.
Let's illustrate this below:
This figure compares the ram velocity of a 40 mm stroke (orange) and a 20 mm stroke (yellow) during a full rotation, at 50 strokes per minute.
As can be seen in the graph, the ram velocity curve of the 40 mm stroke at 90 degrees is 10 inch/s, while the 20 mm stroke's ram velocity is 5 inch/s.
The 5 inch/s difference between the two stroke lengths has a positive effect on throughput. With the 20 mm stroke length comes faster ram velocity, causing better use of energy. This example shows that you can increase throughput with an adjustable stroke press by using shorter strokes.
We hope this short article helped you understand the important dynamic between adjustable stroke length and an increase in throughput.
If you'd like to learn more about adjustable stroke press technology, check out this page.
Interested in a Sangiacomo adjustable stroke press? Contact us to request a quote.