SpheroCompact® SuperSpherotronic® HR UltraSpherotronic®
Radius (convex) +2.5 mm to ∞ +3 mm to ∞ +3 mm to ∞
Radius (concave) -4 mm to ∞ -4 mm to ∞ -4 mm to ∞
Travel of linear encoder ± 12.5 mm ± 30 mm ± 30 mm
Diameter of part under test 6 mm to 500 mm 6 mm to 500 mm 6 mm to 500 mm
Resolution of the linear encoder 0.1 µm 0.1 µm 0.02 µm
Absolute accuracy of the linear encoder ± 0.5 µm ± 0.5 µm ± 0.1 µm
Measurement accuracy 1) Up to ±0.05 % Up to ± 0.01 % Up to ± 0.005 %

1) The maximum measurement accuracy depends on the sample’s radius and the ring used. For detailed information on specific measurement tasks, please contact your sales partner.