Though website mentions thrust-to-weight ratio of 1.7 for 47.5 kg, so it can lift up to extra 33 kg. There is also a description of a spraying system with a tan

Though website mentions thrust-to-weight ratio of 1.7 for 47.5 kg, so it can lift up to extra 33 kg. There is also a description of a spraying system with a tank of 20 l/kg, so it seems 20 kg is the actual payload capacity.