a tube gripper device includes a one - piece gripper assembly of plastic material having a base portion and a plurality of gripper fingers extending therefrom in spaced apart parallel relation to each other for individual flexing movement relative to the base . a cam member is slidably engageable with each of said fingers and is connected to a solenoid actuator whereby upon energization of the solenoid actuator , the cam member is moveable to spread the fingers apart . a spring is provided for moving the fingers into gripping engagement with a tube upon de - energization of the solenoid actuator .