Table 4 Robot cost and discount cost for each robot.

From: Cost-efficient design and optimization of robotic assembly lines using a non-dominated sorting genetic algorithm framework

Robot

r1

r2

r3

r4

r5

Purchase cost

1,000,000

1,500,000

800,000

1,200,000

875,000

Discount cost

50,000

120,000

75,000

90,000

40,000