A.    Usage and Application of LHA/ LHC/ LHT Series Gantry Moving SAW H Beam Welding Machine:

1.      Other Name of the H Beam Submerged Arc Welding Machine:

In Steel Structure Industry, there are numerous same names with H Beam Welding Machine, describing it from aspects of: Workpiece/ mechanical structure/ welding mode:

1)       H Beam SAW Welding Machine;

2)       H Beam Gantry Welding Machine;

3)       I Beam Gantry Welding Machine; ....

2.      Position of H Beam Gantry Welding Machine:

1)       This is the second set of core equipment in H Beam Production Line;

2)       Following H Beam Assembly and Tack Welding Machine;

3)       And preceding to H Beam Flange Straightening Machine;

4)       These 3 machines constitute the basic working stations in H Beam Production Line;

3.      Function of SAW I Beam Gantry Welding Machine:

1)       SAW H Beam Welding Machine is for fulfilling finished welding, on the assembled and tack welded T/ I/ H Beam, in the mode of 45° fillet submerged arc welding;

2)       Wuxi JACK LHA series Gantry Moving H Beam SAW Welding Machine and its finished H Beam, at customer workshop: (Fig.1)

3)       There are 4 passes of welding seam, which need to be fabricated in any one piece of I/ H Beam;

4)      Correspondingly, workpiece H Beam needs to be flipped 90°/ 180°, in the period of SAW fabrication in H Beam SAW Welding Machine;

4.      Vital Importance of Gantry Moving H Beam Submerged Arc Welding Machine:

1)       Welding seam is the essential index for appraising on quality of finished H Beam: Its fusion/ penetration/ cover face/ free of defect such as porosity/ mechanical strength;

2)       All these indicators are managed during operation of H Beam SAW Welding Machine;

3)      So, performance of H Beam Gantry Welding Machine determines quality of finished I/ H Beam.  

B.     Classification on LHA& LHC& LHT Series Gantry Moving H Beam SAW Welding Machine:

Depending on mechanical main frame of SAW H Beam Welding Machine, this product group can be divided into three main sub groups of:

1.      LHA Series Gantry Moving H Beam Submerged Arc Welding Machine:

A set of Wuxi JACK LHA5Z middle managing H Beam Gantry Welding Machine: (Fig.2)

1)       Main Body of the LHA H Beam Gantry Welding Machine is an enclosed box frame, driven with motor for its moving along rails;

2)       The 2 pieces of welding torches and supporting units are assembled onto the gantry frame;

3)      SAW welding is carried out, along with gantry frame moving along parallel rails;

4)       The 2 pieces of workpiece H Beam are laid on its workshop floor fixed triangular brackets;

5)       Working velocity (SAW welding speed) is controlled with A.C. inverter, and displayed instantaneously on hanging operating panel of H Beam Gantry Welding Machine;

6)       Subdivision on the I Beam Gantry Welding Machine: LHAC side managing series/ LHAZ middle managing series, several models under each branch;

7)       Wide Use: This type of Gantry Moving H Beam Submerged Arc Welding Machine has top selling volume among its product group;

8)       Applicable Application Site: This series is operated as individually working H Beam SAW Welding Machine, not suitable for being deployed in automatic H Beam Production Line. It usually works in the form of one set or two sets as a group;

A set of Wuxi JACK LHA5C side managing Gantry Moving SAW H Beam Welding Machine: (Fig.3)

2 sets of Wuxi JACK LHA5Z central control H Beam Gantry Welding Machine: (Fig.4)

2.      LHC Model Column Moving SAW H Beam Welding Machine:

1)      Main Body of the LHC column trolley H Beam SAW Welding Machine is a motor drive column boom trolley;

2)      The single piece of welding torch is assembled onto overhang boom of the trolley;

3)      SAW welding is carried out, by means of trolley moving along parallel rails;

4)     The single piece of workpiece H Beam is laid onhydraulic drive60°OverturningRacks;

Wuxi JACK LHC H Beam SAW Welding Machine and its 60° Overturning Racks: (Fig.5)

5)     Working velocity (SAW welding speed) is controlled with A.C. inverter, and displayed instantaneously on column embedded operating panel, of the SAW H Beam Welding Machine;

6)     Applicable Application Site: Most majority of LHC H Beam SAW Welding Machine work in SAW zone of automatic H Beam Production Line, 4 sets as a group;

Wuxi JACK automatic H Beam Production Line and its 4 sets of LHC SAW H Beam Welding Machine: (Fig.6)

3.      LHT Model T Frame I Beam Gantry Welding Machine:

1)     Main Body of the LHT open structure H Beam Submerged Arc Welding Machine is a set of motor drive T frame;

2)      The 2 pieces of welding torches are assembled onto motorized moving T frame;

3)      SAW welding is carried out, along with T frame moving along parallel rails;

4)      The 2 pieces of workpiece H Beam are laid onto its facility land secured triangular racks;

5)      SAW Welding velocity is controlled with VF A.C. inverter, and displayed in real time, on hanging operating panel of the I Beam Gantry Welding Machine;

6)     Applicable Application Site: Same as LHA, LHT also works as individual H Beam SAW Welding Machine, in the form of one set or two sets;

Installing 2 sets of Wuxi JACK LHT H Beam Gantry Welding Machine: (Fig.7)

C.    Main Specifications of LHA/ LHC and LHT SAW H Beam Gantry Welding Machine:

1.       Suitable Workpiece Size for Different Models of H Beam SAW Welding Machine:

1)      LHC and LHT models SAW H Beam Welding Machine, its available max. web height of H Beam can be up to 1500mm to 2000m;

2)      LHA series H Beam Gantry Welding Machine, there are 5 standard models as below:

2.      Typical Technical Parameters of SAW H Beam Welding Machine: