Thank you for your helpful response. We do not have large tips to try. I will be ordering a new set of tips, so I will try and include those two in our purchase.
Your suggestion for using Hakko 557 is really good. It is hard to believe that the solution can be had for 55$. Frankly, we have 6 large terminals to solder. The remaining soldering work is low power.
That 300W FX-801 looks great, but might be over-kill and only used for rare heavy-duty work. Also, since we are not experts at soldering, there is a chance 300W might cause more damage than help.
What about Weller WX Soldering tools?
https://www.weller-tools.com/professional/USA/us/Professional/Product+lines/WX+Line/Soldering+stations+and+setsThey seem to sell a 200W solution. I am trying to understand why I would need a 2-channel version versus 1 channel. They both seem to have the ability to use the same irons and tweezers.
Do you have any recommendations for a Weller product? Ideally something we could use for everything (low power soldering/desoldering and occasional heavy duty soldering/desoldering). They key thing I want to emphasize is that we are not professionals at soldering, so I want to get a tool that helps us achieve good results when skill is lacking (I say that with caution).
I cannot post pictures of the terminals due to restrictions at work.
Thank you again for your help.