I have been asked to sample a small prototype mold for a customer. I beleive the mold is too small for any of the injection presses I have available, and would like to know how one goes about determining what the maximum tonnage a die can take. To be clear I am not talking about the tonnage required to effectivly keep the mold clamped duing injection, but rather the force to crush the tool. I know there are a lot of variables: steel type, die design, etc, I am more so wondering if there is a general rule of thumb, say something like so many tons per square inch of landing area etc.