Device for supporting and positioning track on a bedplate, said device comprising: - a body; - abutment means applied to said body and adapted to enable said bedplate to support said body; - first supporting means applied to said body and adapted to enable said body to support a first rail; - second supporting means applied to said body and adapted to enable said body to support a second rail; - adjusting means adapted to adjust at least one or more among: a) the position and/or tilt of said first rail (lOOp) with respect to said second rail, b) the position and/or tilt of said first rail (lOOp) with respect to said body, c) the position and/or tilt of said second rail with respect to said body, d) the position and/or tilt of said first rail (lOOp) with respect to said bedplate, e) the position and/or tilt of said second rail with respect to said bedplate, characterized by the fact that said body and said first and/or second supporting means (2p; 2s) are movable with respect to each other at least between: - an extracted supporting position wherein said first and/or second supporting means (2p; 2s) enable respectively supporting the first and/or second rail (100p; 100s), and - a retracted removal position wherein said first and/or second supporting means (2p; 2s) are retracted with respect to the extracted supporting position and configured to allow removal the device from the track. - a body; - abutment means applied to said body and adapted to enable said bedplate to support said body; - first supporting means applied to said body and adapted to enable said body to support a first rail; - second supporting means applied to said body and adapted to enable said body to support a second rail; - adjusting means adapted to adjust at least one or more among: a) the position and/or tilt of said first rail (lOOp) with respect to said second rail, b) the position and/or tilt of said first rail (lOOp) with respect to said body, c) the position and/or tilt of said second rail with respect to said body, d) the position and/or tilt of said first rail (lOOp) with respect to said bedplate, e) the position and/or tilt of said second rail with respect to said bedplate, characterized by the fact that said body and said first and/or second supporting means (2p; 2s) are movable with respect to each other at least between: - an extracted supporting position wherein said first and/or second supporting means (2p; 2s) enable respectively supporting the first and/or second rail (100p; 100s), and - a retracted removal position wherein said first and/or second supporting means (2p; 2s) are retracted with respect to the extracted supporting position and configured to allow removal the device from the track. a) the position and/or tilt of said first rail (lOOp) with respect to said second rail, b) the position and/or tilt of said first rail (lOOp) with respect to said body, c) the position and/or tilt of said second rail with respect to said body, d) the position and/or tilt of said first rail (lOOp) with respect to said bedplate, e) the position and/or tilt of said second rail with respect to said bedplate, characterized by the fact that said body and said first and/or second supporting means (2p; 2s) are movable with respect to each other at least between: - an extracted supporting position wherein said first and/or second supporting means (2p; 2s) enable respectively supporting the first and/or second rail (100p; 100s), and - a retracted removal position wherein said first and/or second supporting means (2p; 2s) are retracted with respect to the extracted supporting position and configured to allow removal the device from the track. - an extracted supporting position wherein said first and/or second supporting means (2p; 2s) enable respectively supporting the first and/or second rail (100p; 100s), and - a retracted removal position wherein said first and/or second supporting means (2p; 2s) are retracted with respect to the extracted supporting position and configured to allow removal the device from the track.