An electromagnetic jack assembly. The jack has a first inner jack member having vertical walls, configured to slide within the base, the first inner jack member being nested within the base and having at least two walls connected to respective inside faces of the vertical walls of the base; a first linear magnetic drive assembly, comprising: a magnetic coil; and a magnet track, mounted on the base and the magnetic coil mounted on the first inner jack member or vice versa. The magnetic drive assembly forms the connection between the base and the first inner track. A second inner jack member nested within the first inner jack member and has a second linear magnetic drive assembly. The magnetic drive assembly forms the connection between the first and second inner track members.