A robot head suitable for withdrawing glass containers and transferring them in space between two different conveyor groups comprising: a series of gripping members suitable for withdrawing said glass containers carried by a first conveyor and releasing said containers on a second conveyor; wherein said gripping members of said robot head are suitable to withdraw together all the glass containers carried by said first conveyor when the movement of said conveyor is stopped to allow the withdrawal to be effected; said robot head provides a mechanism (43,47) for the movement and variation in position of said gripping members with respect to each other, wherein said mechanism is configured for moving said gripping members of said glass containers from a first distance (k) corresponding to the extraction distance from said first conveyor to a second depositing distance (h) of said containers on said second conveyor, said robot head comprises an external box in two coupled parts (30,31) which is arranged vertically with a lower elongated opening formed halfway on each of the two parts (30,31), containing said mechanism for the movement and variation in position of said gripping member, said gripping members emerging from said opening, wherein each gripping member comprises a rod and a gripping element at one of its free ends, characterized in that said rods of said gripping members are each arranged at their ends and extend from free ends of tubular bodies which are integral with their opposite ends to a series of links, wherein each tubular body is connected to a link and the links form a chain, and are articulated to each other, wherein each link has shaped side surfaces which cooperates with those of the adjacent link so that successive links can move on a plane while remaining in contact with each other, wherein the plane in which the gripping members are placed and moving together is the same plane in which the links are moving. a series of gripping members suitable for withdrawing said glass containers carried by a first conveyor and releasing said containers on a second conveyor; wherein said gripping members of said robot head are suitable to withdraw together all the glass containers carried by said first conveyor when the movement of said conveyor is stopped to allow the withdrawal to be effected; said robot head provides a mechanism (43,47) for the movement and variation in position of said gripping members with respect to each other, wherein said mechanism is configured for moving said gripping members of said glass containers from a first distance (k) corresponding to the extraction distance from said first conveyor to a second depositing distance (h) of said containers on said second conveyor, said robot head comprises an external box in two coupled parts (30,31) which is arranged vertically with a lower elongated opening formed halfway on each of the two parts (30,31), containing said mechanism for the movement and variation in position of said gripping member, said gripping members emerging from said opening, wherein each gripping member comprises a rod and a gripping element at one of its free ends, characterized in that said rods of said gripping members are each arranged at their ends and extend from free ends of tubular bodies which are integral with their opposite ends to a series of links, wherein each tubular body is connected to a link and the links form a chain, and are articulated to each other, wherein each link has shaped side surfaces which cooperates with those of the adjacent link so that successive links can move on a plane while remaining in contact with each other, wherein the plane in which the gripping members are placed and moving together is the same plane in which the links are moving.