its annoying that nobody makes servo motors for this application,there are hobby servos -> extreme industrial servos with nothing inbetween
Come on this isnt true you can buy heaps of different sizes.
I can get servo's at 0.0955, 0.159, 0.318, 0.637, 1.27, 2.39, 3.18, 4.90, 6.36, 9.80, 12.6, 15.8 Nm off one page of a catalogue.
The 4.9 Nm Servo is rated at 1.5kw which is heaps of power
When you say you have to lift it to a precise angle do you have another piviot point that holds weight. How did you caculate how much force you would need? Can you borrow a torque wrench and test in real world what you would need