So I should first say that my co-worker is surprised and thankful for the appreciation you guys have shown on his last two model trucks. He brought this one in to show what his first attempt at one was like!
It's a model of a standard sit-down lift truck. These are used primarily to load and unload trucks and for bulk work around warehouse or factory floors.Â
It lifts and turns...
And again opens up to reveal his first battery! The battery is the main counter-weight for the carried load.
Here's roughly what the model was going for. A fully charged lift truck of this size and weight, can lift about 5500 lbs/2500 kg.

His next one is another reach truck, but it's really nice compared to the last two. It'll be the next to show, bli neder.