Vertical Position YTJ40 Hydraulic I Beam Flange Straightening Machine

1.     Outline on Capability of YTJ-40 Hydraulic Drive H Beam Straightening Machine:

1)      The attached first photo shows a piece of welding H Beam was being straightened out of a set of YTJ40 hydraulic drive Automatic H Beam Flange Straightening Machine. By visual inspection, this piece of H Beam has flange thickness of around 30mm, which is within the working capacity of YTJ-40 Automatic H Beam Straightening Machine;

2)      As the third set of essential H Beam Production Machine following H Beam Assembly Machine and H Beam Submerged Arc Welding Machine, YTJ-40 hydraulic high precision Automatic I Beam Straightening Machine is the “lightest” model of YTJ-series, for straightening Q345 (Tensile strength 510~600MPa) with thickness up to 40mm;

3)      Of course, here “lightest” is compared with other models of YTJ-series hydraulic Automatic H Beam Straightening Equipment. As making comparison with mechanical drive HYJ-series H Beam Straightening Machine, the YTJ-40 has obvious higher straightening capacity. The two models of H Beam Straightening Machine have different target application.

2.     Straightening Principle of YTJ Series Automatic H Beam Straightening Machine:

Straightening principle of H Beam Straightening Machine see below sketch:  (Fig.1)

1)     The Working Section in Automatic H Beam Straightening Machine:

a)       For each set of the YTJ-series hydraulic automatic H Beam Flange Straightening Machine, there are two pieces of top straightening rollers and one piece of bottom straightening roller, composing a T shape cavity: 

Straightening rollers disposition in H Beam Straightening Machine: (Fig.2) 

b)      This is the critical working section for performing straightening operation in the Automatic I Beam Straightening Machine;

2)     One Side Flange Straightening in Automatic I Beam Straightening Machine:

a)       During straightening process, driven with hydraulic pump cylinders, the two sets of upper straightening rollers descend down and press H Beam flange with great force;

b)      With the action of top and bottom three pieces of straightening rollers, the flange of H Beam has plastic deformation in the state of three points stress, and got straightened in the automatic H Beam Straightening Machine;

c)       Meanwhile, the bottom straightening roller rotates under the drive of conveyor motor reducer. In this way, the workpiece H Beam is transported forward, going thru the T cavity straightening area continuously along conveyor of the YTJ series hydraulic high precision H Beam straightening machine, and its flange got straightened successively inside the T shape cavity;

d)      With this working process in the YTJ series H Beam Flange Straightening Machine, one side flange of the H Beam is rolled and straightened continuously along its entire length;

e)      If one time straightening does not straighten the flange to the required planeness, the second time straightening should be made inside this hydraulic automatic I Beam Straightening Machine. But most of the condition, one time operation of straightening is sufficient to meet the target;

3)     The Whole Piece of H Beam Straightened in H Beam Flange Straightening Machine:

The other side of flange of H Beam is straightened in the same way. Which means, for one piece of welding H Beam, it needs to go thru the YTJ series automatic H Beam straightening equipment two times to be straightened;

4)     Working Capacity of YTJ-40 Automatic H Beam Straightening Machine:

a)       The two pieces of top straightening rollers are of shaft case structure, with great loading capacity: 

Downward acting oil cylinder of H Beam Straightening Machine: (Fig.3) 

b)      The two pieces of top straightening rollers are driven with hydraulic pump station by means of two sets of cylinders. This is different between hydraulic high precision H Beam Flange Straightening Machine with mechanical HYJ-series mechanical I Beam Straightening Machine;

c)       With straightening speed of 9m/min., the machine is a kind of high speed H Beam Flange Straightening Machine:

d)      There are input and output conveyors at the front and back side of main frame of the YTJ series hydraulic high precision automatic H Beam Straightening Machine, for transferring H Beam into and out of the machine.

3.     Technical Parameters of YTJ-40 Hydraulic Drive Automatic H Beam Straightening Machine:

Below are specifications of this YTJ-40 Hydraulic High Precision I Beam Straightening Machine (H Beam Straightening Equipment):