rickseeman
Cast Iron
- Joined
- Oct 7, 2014
My friend wants me to make him a pin for his excavator. This is a medium size machine, around 50,000 lbs. This pin goes through the hydraulic cylinder that connects to and moves the "stick". The pin is 3.140" in diameter and 10-7/8" long. I don't have any way of finding out the original material. I think of pins as needing to be hard. I was thinking maybe O1? And then have it heat treated. I don't know how the heat treating will effect the size. Thank you for your help.