working principle of Piping Fabrication Fast Fitting-Up Center :

Support and locate the pipe by V-shape block which is used to support the trolley, ensure upper and lower levelness, right and left parallelism of the pipe;  

Support and locate the pipe by working platform, positioning stop and flange turning plate of the Fitting-Up trolley:

Working platform support the weight of elbow and tee joint; positioning stop locates elbow and tee joint. Ensure elbow and tee joint in a 90o angle in case that elbow is close to the positioning stop;

Flange turning plate supports weight of flange and locates flange. Flange is hang on the second locating pin and placed cross the middle; flange turns 90o to the turning plate and ensures the perpendicularity with the pipe;    

Drive the pipe to move horizontally and vertically by lifting mechanism, traverse mechanism and driving & reversing mechanism of the Fitting-Up trolley, ensure horizontal and vertical alignment tolerance and Fitting-Up space while assembling pipe fittings and pipes.  

Pipe-elbow Fitting-Up: bear the weight and ensure levelness of pipe-elbow by the panel above the Fitting-Up trolley, ensure 90o of pipe-elbow by the positioning stop of the Fitting-Up trolley, move the Fitting-Up trolley forward and backward (manual) to adjust the pipe-elbow Fitting-Up space, adjust vertical alignment tolerance of pipe-elbow by worm screw rod lifter (electrical) and horizontal alignment tolerance through moving the liner guide horizontally(electrical);

Pipe-flange Fitting-Up: bear the weight and ensure perpendicularity of pipe-flange by the deflection turning plate (a part of the panel) above the Fitting-Up trolley, move the Fitting-Up trolley forward and backward (manual) to adjust the pipe-flange Fitting-Up space, adjust vertical alignment tolerance of pipe-flange by worm screw rod lifter (electrical) and horizontal alignment tolerance through moving the liner guide horizontally(electrical);

Pipe-tee joint Fitting-Up: bear the weight and ensure flatness of pipe-tee joint by the panel above the Fitting-Up trolley, ensure 90o of pipe-tee joint by the positioning stop of the Fitting-Up trolley, move the Fitting-Up trolley forward and backward (manual) to adjust the pipe-tee joint Fitting-Up space, adjust vertical alignment tolerance of pipe-tee joint by worm screw rod lifter (electrical) and horizontal alignment tolerance through moving the liner guide horizontally(electrical);