cage making machine for reinforced concrete pipe

cage making machine for reinforced concrete pipes: 1>The rolling welder machine can weld steel cage of both plain end and socket end by the way of pushing forward the steels and automatically changing its diameter. 2>In the process of welding, welders lap welding head expand outwards according to the angles that can be set upon request of every specific socket so that the part of the socket end get its shape automatically and gradually, which means the cage diameter can be adjusted freely to some extent. 3>Easy maintenance and reasonable structure (the overall good mechanical part and simple transmission part), no need any foundation base work,salesvery well all over the world