Wuhan three Rainbow Heavy Industries Ltd. of welding machine operator with roller frame, variable-bit machines and other flip-match, can be welded large diameter pipes inside and outside the longitudinal and girth. May require optional welding systems, also matching weld tracking system, monitoring system, flux recovery system or swinging automatic transmission according to user processes. Lifting beams constant speed AC motor way, movements smooth, uniform, high safety factor. With safety anti-fall device. Telescopic beams, columns motoring, electric trolleys are used variable speed AC motor, constant torque output operation machine manufacturers, steady speed (especially at low speed), start or stop the quick heavy machine operation, speed and digital display preset. Column rotation into manual, electric two kinds of light machine operation, slewing ring using domestic brand-name manufacturers of products, comes with high-precision gears, rotating flexible, and can be manually locked, safe and reliable. Trolley with standard railway tracks for walking tracks, divided into two kinds of manual and electric. Manual for light and movement range of smaller operations, electric is applicable to a wider range of heavy or mobile manipulator. Manned aircraft type operation has a manned platform operating machine, move with the wishbone. Using manual control box, head control box (welding control box) constitute nearly control and remote control mode, flexible and easy to operate, and set aside in the electrical box linkage interface, with roller frame, variable-bit machine, circular rotary table synchronization linkage. Welding machine operator, Wuhan three Rainbow Heavy Industries (certified), operating machines offered by Rainbow Heavy Industries Co., Ltd., Wuhan three. Wuhan three Rainbow Heavy Industries Ltd. (www.whshzg.com) is Wuhan, a leader in welding equipment and equipment over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Wuhan three Rainbow Heavy leadership with the staff warmly welcome all inquiries negotiations to create three rainbow Wuhan Heavy better future.