Looks like a Techno Gantry System III. The table size for the 027 model is 850mm x 750mm with a travel area of 500mm x 540mm. Yours looks bigger than that in the picture. Ball screw drive was standard using a 16mm diameter screw with a 5mm pitch.
Someone will probably chime in with information about those servos and drivers, I don't have much experience with them. If you are not familiar with servo based systems, the easiest way to get this going would be to look into picking up a Gecko 540 based stepper system using 280 or 380 oz inch motors. Just to let you know, the stepper version of this table had 155 oz in motors (which had a terrible torque curve btw).
I forgot to add - yes it should make a very good router. I made a router in 1989 loosely based on an earlier Techno model using their extrusions. I (still) use ancient American Scientific 2 amp drivers at 34 volts and am able to rapid at 400 ipm and cut at 200 ipm using a Hitachi MV12 router. I could not afford ball screws back then and use ACME leadscrews. K2CNC has a nice router mount. You would just need to make a simple aluminum adapter plate.
You should think about attaching some MDF to that aluminum plate to protect it. At least until you get some experience cutting.