Q: Why are There LHC/ LHA/ LHT 3 Series of I H Beam Gantry Welding Machine Available for Choice?

This is for convenience of customer choice, considering factors of different working site/ customer budget/ workshop floor/ H Beam size, catering on specific application scenario: 1) LHC model trolley moving machine is deployed in automatic I H Beam Production Line, 4 sets in a row; 2) LHT and LHA models I H Beam Gantry Welding Machine are usually installed in semi-automatic working site, with more flexible layout; 3) Further Division: Further on, depending on the max. H Beam web height and number of operators available, there are 5 models of LHA models machines: LHA4Z/ LHA5Z/ LHA55Z/ LHA4C / LHA5C.

Q: What is standard on Distinguishing medium duty H Beam for Welding 3 in 1 H Beam Machine, and heavy duty H Beam for H Beam Production Line?

1) There is no explicit definition and distinction between medium and heavy duty H Beam in Steel Structure industry. In common practice, 12mm toe height welding seam is the threshold for distinguishing heavy and medium duty H Beam; 2) Three in One Integral Function H Beam Welding Machine can complete 12mm welding toe on finished H Beam with single time welding pass; For heavier duty workpieces with 12mm bigger welding seam, H Beam Gantry SAW Welding Machine should be used, which can be referred to as “ heavy welding ”; 3) The 2 machines have different welding orientations when welding on H Beam, 0 ° versus 45 ° .

Q: What is Welding Mode adopted in Wuxi JACK Three in One Integral Function H Beam Welding Machine?

1) Majority of welding 3 in 1 H Beam Machine is equipped with single arc 1000A SAW (Submerged arc welding), which is applicable for producing 10mm ~ 40mm thickness flange and web; 2) When producing small thickness H Beam, namely 3mm to 10mm, the more proper welding mode is 500A CO 2 GMAW; 3) When customers seek on the Max. welding efficiency, twin arc / tandem arc SAW is considered configuration: A.C.1250A and D.C.1200A. The downside of such choice is high cost on machine purchase: 4 sets of welding power supply compared with 2 sets; This is featured function of Wuxi JACK assembly welding straightening H Beam 3 in 1 Production Machine.

Q: What is Recommended Welding Process Parameters, in Wuxi JACK Three in One Integral Function H Beam Welding Machine?

1) Welding Current: When working in SAW welding model, for flange and web thickness 20mm~ 30mm, the suggestive welding current is around 550~ 750A; When working with CO 2 GMAW on 5mm to 6mm thickness, 350A welding current is often adjusted; 2) Welding Speed: Customers care on this parameter the most, because it directly determines H Beam productivity. Although some producers claim on 1700 to 1800 mm/min., the proper Max. welding speed should be 1200 mm/min., this is determined by welding technology, not the welding 3 in 1 H Beam Machine itself. Too high improper welding velocity will lead to insufficient welding seam fusion, and thus inferior welding quality.

Q: What is Application Form of Assembly Welding Straightening H Beam 3 in 1 Production Machine?

There are two primary common seen ways of deployment on welding 3 in 1 H Beam Machine: 1) Installed and operated as individual equipment. Some customers purchase single set machine, some customers purchase two or more sets, but all in the way of individual. So, in the case of two or more machines, these machines are installed certain distance apart, to fulfil different jobs; 2) Composed into new type of welding H Beam Production Line, different from conventional lines. This new line is composed of 2 sets of three in one Integral Function H Beam Welding Machine, in the form of staggered straight line at workshop, with deviation of conveyor width. In this way, H Beam welding can be completed with its moving through the 2 sets of machines in a row. For the purpose of saving labor intensity, some customers also ask on group of hydraulic drive 90 ° Overturning Table, to be situated between the 2 sets of welding 3 in 1 H Beam Machine.

Q: Why T Beam H Beam is Orientated in Vertical, during its Manufacture, in Assembly Welding Straightening 3 in 1 H Beam Machine?

1) This is the questions often raised by South Asia customers, especially Indian customers. By the time end of 2025 year, every time Indian customer inquired on welding H Beam 3 in 1 Production Machine, they asked this question; 2) The reason may lies in the way of their H Beam production, which is based on American standard, that H Beam is situated in horizontal, and fairly percentage of conditions, H Beams are welded only with single side, the opposing side is not welded; 3) Comparatively, in other countries and regions including China, H Beams are usually produced in vertical way, that H Beam will be flipped 180 ° one time in the process, to weld on its both sides. This is popular way of process technology being applied in three in one Integral Function H Beam Welding Machine.

Q: What is Electric Control Mode of 3 in 1 Vertical H Beam Welding Machine?

1) Electric control system of conventional 3 in 1 Vertical H Beam Welding Machine has core elements of A.C. inverter, which controls integral working velocity of assembly/ welding/ straightening; There is no PLC (Programmable logic controller) involved, as in the case of H Beam Assembly Machine, because no need. The welding seam of H Beam produced from 3 in 1 Vertical H Beam Welding Machine is continuous, just like H Beam Welding Machine; 2) On the other hand, there are some customers who have special requirement on function of machine. For example, in Oct. 2025, there is Cambodian customer, when they placed order on 2 sets of ZHJ15 model 3 in 1 Vertical H Beam Welding Machine, they requested the machine to be capable of carrying out intermittent welding. For this purpose, Wuxi JACK electric engineers have A.C. inverter to be part of electric control system.

Q: Why Conveyors of 3 in 1 Vertical H Beam Welding Machine have Functions of drive/ Elevation with Motor / Hydraulic drive?

1) This question was raised by a Moscow customer in Aug. 2025. When their ordered PHJ20 model 3 in 1 Vertical H Beam Welding Machine being installed at end user facility, put into trial run, they find the first 2 segments of outfeed conveyor roller tables can be lifted up within certain stroke, under the drive of hydraulic oil cylinders. Customer asked Wuxi JACK on its purpose; 2) The reason is, after large current SAW welding, in 3 in 1 Vertical H Beam Welding Machine, longitudinal ways of H Beam will have temporary bending up, under effect of SAW welding heat input. To reliably holding up this bent H Beam, outfeed roller tables of machine should be able to raised up a little. After H Beam cooling down, its longitudinal body will restore to normal straight shape, the outfeed roller tables can drop down accordingly.

Question 1

For Customers, When Should Select Sole Purpose, When Should Select Three in One I H Beam Gantry Welding Machine?

Accepted Answer

The factors behind decision making are:

1) The size of H Beam, especially plate thickness. Here we can say that 40mm is threshold: If H Beam flange and web thickness equal to or less than 40mm, then H Beam 3 in 1 machine is good choice for customer, which can save budget and subsequent running cost. Under the precondition of selecting Wuxi JACK three in one I H Beam Welding Machine, which has capacity of welding and straightening on 40mm thickness. By year 2025, other producers’ produced three in one machines still do not have such strong capacity;
2) On the other hand, when H Beam flange and web thickness are thicker than 40mm, for example, 50/60/80/100mm, then sole purpose I H Beam Submerged Arc Welding Machine is the only choice for customer;
3) Customer Budget: Investment on sole purpose I H Beam Welding Machine, involves higher budget than three in one machine, because H Beam Assembly Machine and H Beam Straightening Machine also need to be purchased, as well as supplementary units: 60°/90°/180° Flipping Equipment, the budget difference between sole purpose and 3 in 1 I H Beam Welding Machine is usually 2 times level;
4) Customer Workshop Floor Area: This has the same reason as the previous one “Customer Budget”.

Question 2

What is the Same Point and Difference between Sole Purpose and 3 in 1 I H Beam Submerged Arc Welding Machine?

Accepted Answer

Same Points:

1) Task: Both machines are for completing SAW welding on I H Beam;
2) Welding Modes: Both machines adopt with large current SAW (Submerged arc welding) mode. Especially LHC/ LHA/ LHT models, 100% use; PHJ and ZHJ models 3 in 1 I H Beam Welding Machine, over 95% use SAW welding;
3) Configuration of SAW welding groups are the same: Welding torch/ Position management/ SAW wire feeding unit/ SAW welding flux recovery and recycling unit;

Difference:

1) Welding Technology: In sole purpose I H Beam Welding Machine, SAW welding is in the position of H Beam 45° fillet welding, that more than single pass of welding can be performed if necessary, to enhance welding seam, so it is applicable for welding large H Beam; While in 3 in 1 I H Beam Welding Machine, SAW welding is carried out one time, in the position of 0° flat welding, so it is more suitable for welding relatively smaller H Beam;
2) Welding Torch Work Mode: In LHA and LHT models machine, although with 2 pieces of welding torch, these 2 welding torches are for welding on two pieces of H Beam separately; While in PHJ and ZHJ models three in one I H Beam Welding Machine, the 2 welding torches work on the same piece of H Beam, left and right in symmetry;
3) Diameter of SAW welding wire is different: In sole purpose machine, it is slightly bigger: Φ4.0/5.0mm; While in three in one machine, it is Φ3.2/4.0mm.

Question 3

Why are There LHC/ LHA/ LHT 3 Series of I H Beam Gantry Welding Machine Available for Choice?

Accepted Answer

This is for convenience of customer choice, considering factors of different working site/ customer budget/ workshop floor/ H Beam size, catering on specific application scenario:

1) LHC model trolley moving machine is deployed in automatic I H Beam Production Line, 4 sets in a row;
2) LHT and LHA models I H Beam Gantry Welding Machine are usually installed in semi-automatic working site, with more flexible layout;
3) Further Division: Further on, depending on the max. H Beam web height and number of operators available, there are 5 models of LHA models machines: LHA4Z/ LHA5Z/ LHA55Z/ LHA4C / LHA5C.

Question 4

What are Advantages of SAW (Submerged Arc Welding) in I H Beam Welding Machine in terms of Welding Technology?

Accepted Answer

1) SAW welding is the No.1 choice in Steel Structure industry. This machine is especially suitable for producing heavy duty I H Beam: Welding toe above 12mm size, need more than one time welding pass, that welding torch can move along the entire length of H Beam back and forth several times, to form large and strong multi-pass welding seam;
2) Accordingly, welding seam formed has wider cover face, deeper penetration, and higher strength;
3) Welding Process Parameters: During SAW welding period, welding speed/ current/ voltage can be modulated easily and intuitively, and displayed in real time on I H Beam Submerged Arc Welding Machine control console.

Question 5

What is Capacity for Installing LHC/LHA/LHT I H Beam Gantry Welding Machine?

Accepted Answer

This machine requires on large electric capacity at workshop, because of its equipped large current SAW welding machines. The exact required capacity differs based on concrete condition,

1) From the minimum level of single arc SAW welding, one set of LHA or LHT,
2) To medium level of single arc SAW welding, four sets of LHC in automatic H Beam Production Line,
3) To the highest level of tandem arc SAW welding, four sets of LHC in automatic H Beam Production Line;

Taking for the 12 sets of LHC special design heavy duty I H Beam Welding Machine Wuxi JACK delivered for Russian customer in July and August year 2025 as example, that one set of such LHC model machine needs workshop electric capacity of:

1) 2 sets of ZD7-1600 D.C. SAW Welding Machines, 84kW x 2= 168kW;
2) 2 sets of ZDE7-1200 A.C. SAW Welding Machines, 71kW x 2= 142kW;
3) The LHC machine itself, 5kW;

Summing up, that just one set of such LHC model large I H Beam Submerged Arc Welding Machine need nominal workshop capacity of 315kW, and actual capacity of 378kW (With 20% fluctuation tolerance). And there are 4 sets of such large machine in one line of automatic H Beam Production.

Question 6

What is standard on Distinguishing medium duty H Beam for Welding 3 in 1 H Beam Machine, and heavy duty H Beam for H Beam Production Line?

Accepted Answer

1) There is no explicit definition and distinction between medium and heavy duty H Beam in Steel Structure industry. In common practice, 12mm toe height welding seam is the threshold for distinguishing heavy and medium duty H Beam;
2) Three in One Integral Function H Beam Welding Machine can complete 12mm welding toe on finished H Beam with single time welding pass; For heavier duty workpieces with 12mm bigger welding seam, H Beam Gantry SAW Welding Machine should be used, which can be referred to as “heavy welding”;
3) The 2 machines have different welding orientations when welding on H Beam, 0° versus 45°.

Question 7

What is Welding Mode adopted in Wuxi JACK Three in One Integral Function H Beam Welding Machine?

Accepted Answer

1) Majority of welding 3 in 1 H Beam Machine is equipped with single arc 1000A SAW (Submerged arc welding), which is applicable for producing 10mm ~ 40mm thickness flange and web;
2) When producing small thickness H Beam, namely 3mm to 10mm, the more proper welding mode is 500A CO₂ GMAW;
3) When customers seek on the Max. welding efficiency, twin arc/ tandem arc SAW is considered configuration: A.C.1250A and D.C.1200A. The downside of such choice is high cost on machine purchase: 4 sets of welding power supply compared with 2 sets;

This is featured function of Wuxi JACK assembly welding straightening H Beam 3 in 1 Production Machine.

Question 8

What is Recommended Welding Process Parameters, in Wuxi JACK Three in One Integral Function H Beam Welding Machine?

Accepted Answer

1) Welding Current: When working in SAW welding model, for flange and web thickness 20mm~ 30mm, the suggestive welding current is around 550~ 750A; When working with CO₂ GMAW on 5mm to 6mm thickness, 350A welding current is often adjusted;
2) Welding Speed: Customers care on this parameter the most, because it directly determines H Beam productivity. Although some producers claim on 1700 to 1800 mm/min., the proper Max. welding speed should be 1200 mm/min., this is determined by welding technology, not the welding 3 in 1 H Beam Machine itself. Too high improper welding velocity will lead to insufficient welding seam fusion, and thus inferior welding quality.

Question 9

What is Application Form of Assembly Welding Straightening H Beam 3 in 1 Production Machine?

Accepted Answer

There are two primary common seen ways of deployment on welding 3 in 1 H Beam Machine:

1) Installed and operated as individual equipment. Some customers purchase single set machine, some customers purchase two or more sets, but all in the way of individual. So, in the case of two or more machines, these machines are installed certain distance apart, to fulfil different jobs;
2) Composed into new type of welding H Beam Production Line, different from conventional lines. This new line is composed of 2 sets of three in one Integral Function H Beam Welding Machine, in the form of staggered straight line at workshop, with deviation of conveyor width. In this way, H Beam welding can be completed with its moving through the 2 sets of machines in a row. For the purpose of saving labor intensity, some customers also ask on group of hydraulic drive 90° Overturning Table, to be situated between the 2 sets of welding 3 in 1 H Beam Machine.

Question 10

Why T Beam H Beam is Orientated in Vertical, during its Manufacture, in Assembly Welding Straightening 3 in 1 H Beam Machine?

Accepted Answer

1) This is the questions often raised by South Asia customers, especially Indian customers. By the time end of 2025 year, every time Indian customer inquired on welding H Beam 3 in 1 Production Machine, they asked this question;
2) The reason may lies in the way of their H Beam production, which is based on American standard, that H Beam is situated in horizontal, and fairly percentage of conditions, H Beams are welded only with single side, the opposing side is not welded;
3) Comparatively, in other countries and regions including China, H Beams are usually produced in vertical way, that H Beam will be flipped 180° one time in the process, to weld on its both sides. This is popular way of process technology being applied in three in one Integral Function H Beam Welding Machine.

Question 11

Are There any Details that Easily to be Neglected by Customers when Purchasing 3 in 1 Integral Function H Beam Welding Machine?

Accepted Answer

Yes, although customers usually spend long time investigating on machines before purchase, they are not insiders, and sometimes may encounter manufacturers, that although looks good proposal is proposed, some details are not mentioned or underlined in purpose, which, in the stage of purchase it looks unimportant, but plays key role in subsequent official running;
In the case of Assembly Welding Straightening 3 in 1 H Beam Machine, some examples on this aspect, from year 2009 to end of year 2025:

1) Straightening capacity on H Beam flange thickness: Although very often seen H Beam plate in the thickness around 20mm, which looks acceptable at the beginning, but imagine on in the following 10+s year machine service life, that customers will inevitably come across producing on 30 to 40mm thickness H Beam, and only Wuxi JACK produced assembly welding straightening H Beam 3 in 1 Production Machine can fulfil such task;
2) Capacity of SAW Flux Hopper: Yes, this is an even nuisance technical index, that if not emphasized, over 95% customer will not pay attention on it. A real case is, in this year 2025, Wuxi JACK had a Columbia customer, who planned to purchase the 2^nd set of their three in one Integral Function H Beam Welding Machine. 10 years ago they bought their first set from another Chinese company, that capacity of SAW flux hopper is only 50kg. This time, they took lessons, and noted that Wuxi JACK equipped capacity is 100kg for our SAW flux hopper;

“Detail determines excellence”, the above 2 technical data, and other technical characteristics of our welding 3 in 1 H Beam Machine, help us winning this South American customer in Aug. 2025 year.

Question 12

What is Welding Technology Trend of 3 in 1 H Beam Assembly Welding Straightening Machine?

Accepted Answer

1) From year 2009 to today in Nov. 2025, welding technology of 3 in 1 Vertical H Beam Welding Machine has undergone series of changes and development, to meet on wide variety of customer demand. The overall trend is from single choice of single arc SAW welding, to multitude options of welding mode, because H Beams have wide variety, and different customers have different requirement on productivity/ cost, etc.;
2) Currently the major welding mode in 3 in 1 Vertical H Beam Welding Machine is still single arc SAW, which has advantages of reasonable cost/ stable performance/ easy operation, and over 80% of application scenario;
3) Besides, there are other types of welding mode to satisfy customer specific demand, including: Twin Arc SAW/ Tandem Arc SAW/ Single Wire GMAW/ Tandem Wire GMAW/ Mixed Single Arc SAW with Single Wire GMAW, these welding modes can produce special specifications of H Beam for customers.

Question 13

What is Electric Control Mode of 3 in 1 Vertical H Beam Welding Machine?

Accepted Answer

1) Electric control system of conventional 3 in 1 Vertical H Beam Welding Machine has core elements of A.C. inverter, which controls integral working velocity of assembly/ welding/ straightening; There is no PLC (Programmable logic controller) involved, as in the case of H Beam Assembly Machine, because no need. The welding seam of H Beam produced from 3 in 1 Vertical H Beam Welding Machine is continuous, just like H Beam Welding Machine;
2) On the other hand, there are some customers who have special requirement on function of machine. For example, in Oct. 2025, there is Cambodian customer, when they placed order on 2 sets of ZHJ15 model 3 in 1 Vertical H Beam Welding Machine, they requested the machine to be capable of carrying out intermittent welding. For this purpose, Wuxi JACK electric engineers have A.C. inverter to be part of electric control system.

Question 14

What is Technique Evolution of 3 in 1 H Beam Assembly Welding Straightening Machine?

Accepted Answer

1. Background on evolvement of 3 in 1 Vertical H Beam Welding Machine is to replace H Beam Welding Production Line, in the field of producing small to medium sized H Beam, so as to save cost and raising productivity for customers. It begins from year 2005, come into mature business product in 2009 pushed by Wuxi JACK, and has undergone many variations over the past 16 years, to today by end of 2025, and still sees diversification on its target customer. In other words, this 3 in 1 Vertical H Beam Welding Machine has gradually sees division on market;
2. The major diversification on design and technique of Assembly Welding Straightening 3 in 1 Vertical H Beam Welding Machine mainly embodies at below 3 aspects of:

1) Machine Main Structure: There is great difference, between Wuxi JACK machine, compared with that of other producers. In a word, Wuxi JACK machine has much more strong and durable mechanical structure, which have been proved by customers investigation and feedback;
2) Machine Control Mode: Majority of Wuxi JACK 3 in 1 Vertical H Beam Welding Machine works as individual equipment; On the other hands, some customers purchase 2 or more sets of machine, sometimes equipped with 180° overturning table, to compose into an automatic H Beam production line, this can greatly increase productivity;
3) Welding Mode: As introduced in question on “Welding Technology Trend”, welding modes of 3 in 1 Vertical H Beam Welding Machine also undergoes great development with 16 years time.

Question 15

Why Conveyors of 3 in 1 Vertical H Beam Welding Machine have Functions of drive/ Elevation with Motor / Hydraulic drive?

Accepted Answer

1) This question was raised by a Moscow customer in Aug. 2025. When their ordered PHJ20 model 3 in 1 Vertical H Beam Welding Machine being installed at end user facility, put into trial run, they find the first 2 segments of outfeed conveyor roller tables can be lifted up within certain stroke, under the drive of hydraulic oil cylinders. Customer asked Wuxi JACK on its purpose;
2) The reason is, after large current SAW welding, in 3 in 1 Vertical H Beam Welding Machine, longitudinal ways of H Beam will have temporary bending up, under effect of SAW welding heat input. To reliably holding up this bent H Beam, outfeed roller tables of machine should be able to raised up a little. After H Beam cooling down, its longitudinal body will restore to normal straight shape, the outfeed roller tables can drop down accordingly.

Question 16

How to Quickly Set up H Beam Production Shop, with 3 in 1 Vertical H Beam Welding Machine?

Accepted Answer

For customers, this is easy and cost saving task, compared with introducing traditional H Beam Production Line of separate machines. The major steps are:
1, Plan out an area of 600m² (38m length by 16m width) for machines installation;
2, Purchase the 2 machines necessary, in sequence of process technology:

1) CNC Flame Cutting Machine: Some customers also require on plasma cutting function on it;
2) 3 in 1 H Beam Assembly Welding Straightening Machine;

3, Before installing these 2 machines, making sure utility, especially electric power grid of workshop has sufficient capacity, to accommodate on the above 2 machines. We have an Argentina customer, they bought these 2 machines from Wuxi JACK in Oct. of year 2024, finished installation in March 2025, and found their electricity was not so sufficient. This customer enhanced their power capacity in July 2025 for running on the 2 machines.

Question 17

How to Implement Effective Trouble Shooting on 3 in 1 Vertical H Beam Welding Machine, if Machine encounters Shut Down?

Accepted Answer

1) First, Wuxi JACK produced 3 in 1 H Beam Assembly Welding Straightening Machine has very stable high stand performance on daily operation, benefitting from innate delicate design / superior quality control/ Continuous improvement/ Rich experience. Operation and service properly, there should be very seldom malfunction with our 3 in 1 Vertical H Beam Welding Machine. This is validated by hundreds of customers worldwide over the past 16 years, from year 2009 to year 2025;
2) To achieve foolproof measures, we also prove list of common trouble shooting methods, give failure phenomenon/ possible cause/ recommended solution, in manual book of the 3 in 1 Vertical H Beam Welding Machine. This can help customer quickly identify trouble and solve it in high efficiency;
3) As last resort, if customer can not solve problem by themselves, Wuxi JACK engineer team is always available for supporting customer. But we never have such moment (Give technical support on trouble shooting our 3 in 1 Vertical H Beam Welding Machine), thanks to superior and steady performance of our machine.

Question 18

Why Conveyors of 3 in 1 H Beam Machine have Functions of drive/ Elevation with Motor / Hydraulic drive?

Accepted Answer

1) This question was raised by a Moscow customer in Aug. 2025. When their ordered PHJ20 model 3 in 1 Vertical H Beam Welding Machine being installed at end user facility, put into trial run, they find the first 2 segments of outfeed conveyor roller tables can be lifted up within certain stroke, under the drive of hydraulic oil cylinders. Customer asked Wuxi JACK on its purpose;
2) The reason is, after large current SAW welding, in 3 in 1 Vertical H Beam Welding Machine, longitudinal ways of H Beam will have temporary bending up, under effect of SAW welding heat input. To reliably holding up this bent H Beam, outfeed roller tables of machine should be able to raised up a little. After H Beam cooling down, its longitudinal body will restore to normal straight shape, the outfeed roller tables can drop down accordingly.

Question 19

Can 3 in 1 H Beam Welding and Straightening Machine being Used as Single Purpose H Beam Welding Machine?

Accepted Answer

1) In theory, yes. But in practical condition, very seldom customer do in this way, and we do not recommend such practice either. The reason is, compared with H Beam Gantry Welding Machine, which welds on H Beam with 45° welding, with to and from several times welding, and can produce welding toe size of over 12mm, in this 3 in 1 H Beam Welder Machine, welding is usually performed only one time on H Beam, confined from its structure and way of operation; Besides, H Beam is in position of vertical, so the max. welding toe size is up to 10mm;
2) The advantage of 3 in 1 H Beam Welding Machine lies in its integration, that it combines assembly and straightening function together with welding, so as to produce small and medium I H Beam with single machine, not welding capacity.

Question 20

Please Give Adoption Condition of Welding Technique in 3 in 1 H Beam Welding Machine:

Accepted Answer

There are mainly 3 types of welding in 3 in 1 H Beam Welder Machine:

1) Single Arc SAW: This is absolutely the No.1 choice, applicable for over 90% of application cases, the default configuration in machine. This welding mode has good points of: Stable performance, lower running cost, high efficiency, easy operation;
2) Twin Arc SAW: This is attributed as personalized SAW welding mode. Utilizing double wires of Φ1.2-1.6mm, this welding mode can raise welding speed of around 20%, and get longer welding seam. However, it has serious negative point: That twin arc is easy to have its welding wire entanglement during feeding in, because of small diameter and hence insufficient strength of welding wire, which lead to machine shut down;
3) CO₂ Gas Shielded Welding: In 3 in 1 H Beam Welding Machine, this welding mode is used for producing small thickness H Beam, with flange and web of 4-8mm thick, the height and width of H Beam is also correspondingly smaller. The welding torches need to have water cooling unit during operation;

Sometimes, although not often seen, some customers select to have their 3 in 1 H Beam Welding Machine being equipped with more than one type of welding: Single arc and twin arc together for SAW; Or, single arc SAW together with CO₂ GMAW. Of course, this will add on total price of machine.

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FAQ FRO ANGLE STRAIGHTENING MACHINE

Q For Customers, When Should Select Sole Purpose, When Should Select Three in One I H Beam Gantry Welding Machine?

Q What is the Same Point and Difference between Sole Purpose and 3 in 1 I H Beam Submerged Arc Welding Machine?

Q Why are There LHC/ LHA/ LHT 3 Series of I H Beam Gantry Welding Machine Available for Choice?

Q What are Advantages of SAW (Submerged Arc Welding) in I H Beam Welding Machine in terms of Welding Technology?

Q What is Capacity for Installing LHC/LHA/LHT I H Beam Gantry Welding Machine?

Q What is standard on Distinguishing medium duty H Beam for Welding 3 in 1 H Beam Machine, and heavy duty H Beam for H Beam Production Line?

Q What is Welding Mode adopted in Wuxi JACK Three in One Integral Function H Beam Welding Machine?

Q What is Recommended Welding Process Parameters, in Wuxi JACK Three in One Integral Function H Beam Welding Machine?

Q What is Application Form of Assembly Welding Straightening H Beam 3 in 1 Production Machine?

Q Why T Beam H Beam is Orientated in Vertical, during its Manufacture, in Assembly Welding Straightening 3 in 1 H Beam Machine?

Q Are There any Details that Easily to be Neglected by Customers when Purchasing 3 in 1 Integral Function H Beam Welding Machine?

Q What is Welding Technology Trend of 3 in 1 H Beam Assembly Welding Straightening Machine?

Q What is Electric Control Mode of 3 in 1 Vertical H Beam Welding Machine?

Q What is Technique Evolution of 3 in 1 H Beam Assembly Welding Straightening Machine?

Q Why Conveyors of 3 in 1 Vertical H Beam Welding Machine have Functions of drive/ Elevation with Motor / Hydraulic drive?

Q How to Quickly Set up H Beam Production Shop, with 3 in 1 Vertical H Beam Welding Machine?

Q How to Implement Effective Trouble Shooting on 3 in 1 Vertical H Beam Welding Machine, if Machine encounters Shut Down?

Q Why Conveyors of 3 in 1 H Beam Machine have Functions of drive/ Elevation with Motor / Hydraulic drive?

Q Can 3 in 1 H Beam Welding and Straightening Machine being Used as Single Purpose H Beam Welding Machine?

Q Please Give Adoption Condition of Welding Technique in 3 in 1 H Beam Welding Machine: