A bucket elevator for lifting parboiled paddy (bulk density = 840 kg m³) is operated at a linear speed of 2 m s^-1. The width of the bucket is 25.4 cm and its cross section is making a subtending angle of 75° at the centre of a circle having 12.7 cm radius. The space between two adjacent buckets on the elevator belt is 40 cm. If the buckets are filled to 80% of their volumetric capacity, the lifting capacity of elevator in kg min^-1 (round off to 2 decimal places) is _______.