guide 7 is mounted under the pipe transfer linear actuator 4 and the ball nut 5 and ball nut bracket 6 are mounted onto the linear guide bearing unit 8 for smooth movement the chuck carriage and cutting carriage assemblies are equipped with four track rollers 17 each which respectively ride on the channel rail 1 to enable the scraps cut from the pipe to fall freely to the floor and not interfere with the pipe cutting process the cutting carriage plate 16 has a through hole 25 and the channel rail 1 has a series of through holes covering the full range of movement of the laser pipe cutting head 10 ball transfers are selected for the pipe bearings 15 because they are subjected to both linear and rotational movements two air cylinder adapter plates 12 a each having two air cylinders 12 one for pipe grabber 13 the other for bearing yoke 14 are adjusted in and out opposite each other by adjusting screws 12 b to accommodate different pipe diameters air cylinders 12 are adapted for mounting bearing yokes 14 to handle pipes that are slightly deformed dented protruded or have localized irregularities in pipe diameter and the like which.