Vulcan hammers and the Engineering News formula came into the world at about the same time. Although the wave equation has largely supplanted the dynamic formulae, the Engineering News formula is found in many specifications.

We have developed an interactive web page which allows you to generate an Engineering News Formula bearing capacity table for a wide variety of Vulcan hammers. Simply choose the hammer you need the table for and click on the button "Develop ENR Table" to see the results.

Below is a table which shows the bearing capacity values for a selection of Vulcan hammers and blow counts. Let us know if there is a hammer we need to include in this list. (Note: all hammers are listed at rated striking energy.) Click here for more help on the use of the Engineering News Formula.