I have NEMA Type 34 servos and was interested if they were strong enough to handle the torque of these motors.
They should work in principle (other factors such as length, load, etc plays a role too) , but note you'll need to whip up some adapters of some sorts, as the C-Beam end mounts have nema23 mounting hole patterns. Checkout the deflection data too: How to calculate V-Slot® deflection to see how your whole design would deflect.