LHA Gantry Type High Precision H Beam Submerged Arc Welding Machine
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LHA Gantry Type High Precision H Beam Submerged Arc Welding Machine

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For all the heavy duty H Beam submerged arc welding machine, including LHA/ LHC/ LHT, since its main duty is to finish SAW on the workpiece, the proper selection on welding mode, and model of welding power source, as well as console accordingly, is very important.

 

As introduced in previous products, we recommend 2 types of SAW power source of Chinese HUAYUAN and U.S. Lincoln. Going further, there are several models to be selected:

  1) ZD7-1000(HUAYUAN) or DC-1000(Lincoln): This refers to D.C. current of max. 1000A. It can meet the

     requirement of most majority SAW. For all the large I Beam gantry welding equipment of our company (H

    Beam, LHT and LHC also), under the Single Arc submerged arc welding mode, we use this model of either 2

    brands;

  2) MZE-1250(HUAYUAN) or AC-1250(Lincoln): This refers to A.C. current of max. 1250A. It is seldom used as

     sole SAW power source for our automatic I Beam gantry welding equipment (H Beam, and LHT& LHC also). 

     Instead, under Tandem Arc SAW mode, it works together with DC-1000 (or ZD7-1000). Which means, one set of

    DC-1000 and AC-1250 each for Lincoln, or one set of ZD7-1600 and MZE-1250 each for HUAYUAN;

  3) ZD7-1250(HUAYUAN) or DC-1500(Lincoln): This refers to D.C. current of max. 1250A for HUANYUAN, and

    1500A for Lincoln. Both the models have too large current, which is not applicable for working as SAW power 

    source of our heavy H Beam submerged arc welding machine;

  4) Difference between D.C. and A.C. power source in SAW

   -  D.C. power source features in delivering welding seam of deeper crater and deposition;

   -  A.C. power source features in delivering welding seam of wider weld fusion and comparative good appearance;

   - For our heavy H Beam gantry welding equipment (LHT and LHC also), the SAW power source is one set of 

     Lincoln DC1000 (or HUAYUAN ZD7-1000) for Single Arc, and, as mentioned in item 2, one set of Lincoln 

     DC1000+ one set of Lincoln AC1250 (or one set of HUAYUAN ZD7-1600 + MZE1250 each) for Tandem Arc

 

Model of Welding Power Source Consoles:

  1) For HUAYUAN power source, there is no independent model for the console. It shares the same model with

      the power source;

  2) For Lincoln power source, the mating console is:

     - NA-3 for DC1000;

     - NA-4 for AC1250;

     - NA-5 is the version of state-of-art digital control (welding parameters pre-set and display);

     - Lincoln Wire feeder also has the model of NA-3. Need to take care no confusion between console and wire 

       feeder

 

In all, there are large volume of technical information/data/documents from Lincoln and HUAYUAN on each of the specific product. To have full and clear understanding and hence the most appropriate combination of these power source/console/wire feeder, is very important to high precision control of these high efficiency I Beam gantry welding equipment (LHT and LHC also).

 

Below are specifications of this LHA High Precision I Beam Gantry Welding Equipment:

Parameter

Specification

Note

H Beam Flange Width (mm)

200  ~ 800


H Beam Flange   Thickness (mm)

6 ~ 40

Can be special made

H Beam Web Height (mm)

200   ~ 1200/1500/1800/2000

Varies on models

H Beam Web Thickness (mm)

6 ~ 32

Can be special made

H Beam Length   (mm)

4000  ~ 15000

Can be special made

Submerged Arc Welding type

45° fillet welding


Submerged Arc Welding mode

Single Arc,

Or   Tandem Arc


Welding Power Source brand

Chinese HUAYUAN or

U.S.A   Lincoln

ZD7-1000(ZD7-1600   for Tandem Arc) or DC-1000

(A.C.:   AC1250 or MZE1250)

Welding Power Source quantity

2   sets in the case of Single Arc,

And   4 sets in the case of Tandem Arc

Machine quotation is different as in the case of Single Arc and Tandem Arc

Console of welding power source

NA-3  for Lincoln

ZD-7  for HUAYUAN


 


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