unislide velmex Linear Positioner MB2518K1J-S3 Electro craft E552 Servo Motor. I am selling these as a pair. It appears that they have a travel of about 15 inches although I could be wrong. Please do your own research. The electric motor on one of the units is slightly loose. I don’t know if these work or not. I am selling them as parts. I’m sure these were extremely expensive when new. The electrical wires going into one of the control boxes appear to be damaged or removed. These are heavy and they weigh about 30 pounds for the pair.
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