So I installed this awhile back in my current playthrough. As I have been exploring -- i have found 4 of the various big machines. Up until recently I have not used them in any way.

I am currently setting up yellow science and I need a solid supply of steel to fill up my trains. As a big electric furnace was nearby to my iron smelting arrays I decided to use the big furnace. I fed it 4 full red belts of iron plate hoping for at full red belt of steel. it cannot make a full belt.

To say I was disappointed is an understatement.
Am I missing something? It is fast for sure ... but it only outputs a single item? what is the point?

please somebody fill me in -- maybe I doing something wrong?

I really want to use these (I love requiring the train, etc.) -- but if they are this lackluster ... I'd rather not bother with them.

The electric furnace can produce a full belt of resources. But you’ll need to either add modules or increase the production speed in the settings. If you use modules, here (https://imgur.com/a/xtuiJL9) are the conditions under which I get 1 blue belt full of iron. You can place more beacons to increase throughput even further. If you don’t want to mess with the modules just yet, set the multiplier to 50 instead of 10 and the furnace speed to 4 instead of 2 in the mod’s settings. That will give you a similar effect. The mod has flexible settings.