Adjustable roller frame is changed by means of friction between bit machine roller frame weldment active wheel and drive the displacement of rotating machinery weldments. Adjustable roller frame only one roller member is active roller member, and the other is a driven roller member. Drives are used in frequency conversion motor roller frame, by gear to drag the wheel parts and weldments do welding rotary drive. Each roller frame components of the wheel spacing adjustment welding roller stand, is by manually, according to the weldment, the use of positioning the bolt to complete. Adjusting wheel frame by frame active wheel, driven wheel frame and control system components since. Active roller frame roller rotating AC inverter motor drive inverter, roller frame with a wide speed range of effects, smooth rotation is good, low-speed characteristics and other characteristics hard, driven roller frame roller gearless, by the active wheel frame by passive driven rotating workpiece. ZT wheel frame can be within a certain range automatically adjusted according to the size of the workpiece diameter wheel set roller section swing angle, without manual adjustment, if on the height of the main post, driven rollers make appropriate adjustments can be cone into the constitution, points the role of the assembly and welding roller frame segment diameter ranging rotator wheel frame _ _ Third Wuhan Heavy Rainbow by Rainbow Heavy Industries Co., Ltd., Wuhan three. Wuhan three Rainbow Heavy Industries Ltd. (www.whshzg.com) strong, credible, in Wuhan, Hubei and other welding equipment and equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead three rainbow Wuhan Heavy and you work into the brilliant, for a better future!