..........I'm going to post several detail photo's of the press, so maybe it'll help out some of you guys who might be using it as a basis for your own.
LEFT PHOTO Die station, looking down. RIGHT PHOTO Looking up, underside of the platten/die station. It appears the head of the ram and the platten are pressed together. There is zero evidence of being threaded, or other means of retention.
LEFT PHOTO Platten at full extension. The slot bottoms at 5.375" from the TOP of the platten, which is the critical measurement. RIGHT PHOTO The .750+" bore in the ram to contain the ejector is 4.25" long from the top of the ram.
LEFT PHOTO The ejector rod in place with the keeper rod through the ejctor rod body, with the spring resting on it. THis keeps the ejector rod down in the ram. The platten is at full extension. If there had been a die in place it would be in the pressure/swaging position. RIGHT PHOTO The platten down. The ejector body hits the ejector bar which causes it to stop while the ram continues down. The ejector pin is then forced up through the die body to eject the core or finished slug.