It is possible to control speed and positioning with high accuracy by using a linear encoder, even if the mechanical accuracy a little rough.
High-speed drive (6.5m/Sec)
Low-speed drive (8 μ m/Sec)
Almost uniform in speed (±0.006% at 100mm/Sec)
Can be used in strong environments such as underwater and in a vacuum
When compared to other linear motors, it is compact and lightweight