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1 BOX I H Beam Gantry SAW Welding Machine 1

Wuxi JACK BOX I H Beam Gantry SAW Welding Machine, 

Cost Effective Reliable Equipment in Steel Structure Use

Variety of Wuxi JACK Gantry Frame BOX I H Beam SAW Welding Machine

1. Wide Use: Moving gantry frame BOX I H Beam Welding Machine has extensive application in steel structure production, with the largest selling volume. It is flexibly deployed in various production line, with either automatic or manual material handling;
2. Work Principle: With two pieces of welding torches installed onto horizontal beam of moving gantry, BOX I H Beam Welding Machine fulfils welding along the entire length of BOX T I H Beam, by means of gantry frame moving in continuously adjustable welding speed;
3. Suitable Application: Adopting with large current SAW (Submerged arc welding) in the workpiece position of 45° orientation or 12 o’clock, and capable of performing welding back and forth numerous times along the workpiece, these BOX I H Beam Gantry SAW Welding Machine is especially good at producing large heavy long BOX or H shaped metal frames, of plate thickness 40mm to 100mm, in large scale BOX and H Beam Production Line;
4. Welding Mode: SAW itself has diversification of Single Arc/ Twin Arc/ Tandem Arc, which meticulously meet customer demand, especially heavy duty welding jobs.
 

Wuxi JACK Gantry Frame BOX I H Beam Welding Machine in Use at Customer Facility:

2 sets of LHA55Z middle operating type at newly started workshop
LHA5C model Side (Lateral) operating type at Bangladesh facility
LHA5Z middle operating type at Bangladesh workshop
At Vietnam customer factory, LHA5Z middle operating type
LHA55Z works at Chinese steel structure workshop
LHA5Z and its 2 pieces of finished large H Beam
LHA5Z in operation for H Beam 45° SAW welding
4 sets of LHC model Moving Trolley structure in automatic line for H Beam Production

Wuxi JACK Gantry Moving Structure BOX I H Beam Welding Machine in Year 2025

By December 18th , in year 2025 Wuxi JACK has produced and delivered over 20 sets of H Beam Gantry SAW Welding Machine, with different designs/ specifications/ configurations. Below is epitome of these machines:
 

1, LHA55Z Center Operating BOX I H Beam SAW Welding Machine at Chinese Steel Structure:

In Spring April 2025, installation and trial run at customer facility. This machine can produce both H Beam and BOX Beam, shown in below photos:
Welds on large H Beam with 45° SAW welding
Trial run with BOX Beam welding
Welds on small H Beam with 45° SAW welding
Installation and test on machine performance

2, 2 Sets of I H Beam Gantry SAW Welding Machine at Bangladesh Steel Company:

In Summer June 2025 year, a Bangladesh customer purchased 2 sets of gantry frame I H Beam Welding Machine: LHA5Z center work structure, and LHA5C side work structure respectively, for producing medium and large H Beams. Below are photos taken at operating site:
LHA5C side work operator, and finished welding H Beam
LHA5Z center work operator team
LHA5Z center work Wuxi JACK engineer and customer operator
LHA5Z center work panorama view on operating zone

Videos of Wuxi JACK I H Beam Gantry SAW Welding Machine

 

Technical Specifications of Wuxi JACK Gantry Frame I H Beam SAW Welding Machine

Note: Below parameters table is for customer quick review on major type of Wuxi JACK BOX I H Beam Gantry SAW Welding Machine. for detailed technical specifications of each model, please check ending section of this page:
  LHA Series LHT
Operation Type Rail Span Model Number Of Operator Max. H Beam Web Height
Beneath Center of Moving Gantry 4000mm LHA4Z 1 1200mm 2000mm
5000mm LHA5Z 1800mm
5500mm LHA55Z 2000mm
Lateral 4000mm LHA4C 2 1500mm
5000mm LHA5C 2000mm
H Beam Flange Width 150-800mm
H Beam Flange Thickness 6-40-60-80-100mm
H Beam Web Thickness 6-40-60-80mm
H Beam Length 4,000-15,000mm
Gantry Move Rail Length 18,000mm
Applicable Workpiece H Beam and BOX Beam, especially large ones
SAW Welding Position 45° fillet welding, single arc/ twin arc/ tandem arc
SAW Welding Velocity 240-2400mm/min., controlled with A.C. Inverter
Idle High Speed 3200mm/min., constant

Major Units of Wuxi JACK Gantry Moving BOX I H Beam Welding Machine

1 BOX I H Beam Gantry SAW Welding Machine 104 20150715_091216
2 I H Beam SAW Welding Machine 53 IMG_1784
3 H Beam Welding Machine 77 IMG_1337
4 BOX I H Beam Gantry SAW Welding Machine 83 IMG_4043
5 BOX I H Beam Gantry SAW Welding Machine 102 IMG_1780
6 I H Beam SAW Welding Machine 78 IMG_1779
7 I H Beam SAW Welding Machine 58 IMG_20161207_093206
8 BOX I H Beam Welding Machine 68 IMG_20231123_155103

Advanced Technique in Wuxi JACK I H Beam Gantry SAW Welding Machine

1. Welding Torch Mounting Carriage in SAW I H Beam Welding Machine:

1) Importance: Welding torch and mounting carriage determines reliable and accurate welding positioning, and hence welding quality in producing BOX I H Beam;
2) Installation: Welding torch is installed on motor drive moving carriage, which moves along horizontal guiderail on the front upper horizontal beam of H Beam Welding Machine gantry frame;
3) Elevation Function: In addition to horizontal direction X axis, welding torch can also be lifted up and down along the carriage under motor drive, Y axis;
4) Degree of Freedom: In this way, for proper operation, welding torch can move in three dimension directions X/ Y/ Z axis in mechanical main frame.
 

2. High Precision Controlling Welding Head in Wuxi JACK I H Beam SAW Welding Machine:

Indicated in above photos,
1) Drive and Transmission: In Wuxi JACK H Beam Gantry SAW Welding Machine, horizontal movement of mounting carriage and welding torch is driven with manual handle reducer, transmitted with precise gear and rack. This is because SAW welding job is performed along longitudinal direction of workpiece (H Beam or BOX Beam), not along horizontal way;
2) Up and down adjusting welding torch is driven with motor reducer, transmitted with precise gear and rack, accommodating on varying web heights of H Beam;
3) Guide: Horizontal and vertical movement of welding torch are guided with precise adjustable eccentric rollers, which are assembled at the front and rear sides of mounting carriage, along the high precision V section guiderails;
4) Performance: These fully guarantee on smooth/ steady/ accurate movement of welding head in Wuxi JACK BOX I H Beam Gantry SAW Welding Machine during its operation.

Extensive Application of BOX I H Beam SAW Welding Machine

A. Basic Role and Importance of BOX I H Beam Welding Machine:

1. Function of BOX I H Beam Gantry SAW Welding Machine:

This is the primary equipment for producing T/ I/ H Beam:
All the remaining machines in I H Beam Production Line:
1) I H Beam Assembly Machine;
2) I H Beam Straightening Machine;
3) I H Beam End Face Milling Machine;
Can be viewed as supporting equipment for SAW welding step;
2. Function: I H Beam SAW Welding Machine carries out central process step for producing welding H Beam: The 45° Submerged arc fillet welding, which forms solid welding seam with toe size from 6mm to 12mm and bigger;
1) A piece of large H Beam completed welding in Wuxi JACK LHA5Z model I H Beam Gantry SAW Welding Machine, 45° fillet position: (Fig.1)
Fig1 BOX I H Beam Gantry SAW Welding Machine 1
2) BOX Beam being performed with SAW welding in Wuxi JACK machine, in flat position: (Fig.2)
Fig2 BOX I H Beam Gantry SAW Welding Machine 56
 

B. Other Types of Applicable Workpieces in Steel Structure BOX I H Beam Gantry SAW Welding Machine:

1. Extended Use: In addition to T/ I/ H Beam in steel structure industry, different sizes of gantry frame welding machines are also widely used in fabricating on other large steel workpieces;
2. Technical Feature: During work, lengthways welding operation along the entire length of workpieces is carried out, which is fulfilled with back and forth movement of mechanical gantry main frame. The complete set of welding system is fixed onto front mechanical frame;
3. The Typical Workpieces are: Lamp post/ large diameter pipe/ Long length structure members, etc.;
4. Wide Application: This makes sure gantry frame steel structure H Beam Welding Machine not only being applied in Steel Structure Industry, but also Municipal Construction/ Petroleum Pipeline/ Pressure Vessel, etc.;
5. Working Nature: In this respect, BOX I H Beam Gantry SAW Welding Machine is an universal applied general purpose welding machinery.

Operation on Gantry Frame BOX I H Beam Welding Machine

1. Qualification on Operators of H Beam Gantry SAW Welding Machine:

1) Operator should understand manual books first, including manual book of:
a) H Beam Welding Machine itself;
b) SAW welding power supply;
c) SAW welding flux recycling machine,
being familiar with structure and way of adjustment, has ability to operate on SAW welding operation correctly;
2) Operator should perform trial run on the entire work group of I H Beam SAW Welding Machine, being familiar with pushbuttons and switches, confirming normal work of all function units;
3) Operator should command skill on SAW welding, especially proper welding process parameters including current/ voltage/ speed;
4) Accordingly, before official welding, operators should set up correct welding parameters, making good preparation;
 

2. Major Steps for Running on Gantry Frame I H Beam SAW Welding Machine:

1) Preparation: Put selection switch on the right panel to “Adjustment”, then press “Retreat” button, making gantry retreating to the rear position. Then put 2 pieces of assembled H Beam onto rack (rack should be made by customer), implementing on welding seam job upward, at 45° fillet position;
2) Welding Torch Rough Adjustment: Make gantry moving forward, until welding arm adjacent to H Beam. Then adjust welding arm moving up and down, left and right, making sure welding tip aiming at welding seam basically;
3) Welding Torch Precise Adjustment: Inching down welding arm until it contacts with H Beam, then welding arm descends down another 50mm. Adjust welding tip up and down, left and right, until it aims at center of welding seam at a certain distance away, then actuate on air cylinder, making control roller holding down. Now, it is available for official work of the H Beam Welding Machine;
4) SAW Welding Operation: Put selection switch on the right panel to “Weld”, then switch on flux hopper for depositing flux. Start on left and right welding machines, setting up welding parameters ahead of time. Switch on flux recovery unit, and adjust welding parameters precisely;
5) At the end of welding, press “Weld Stop” button, switching off flux hopper, raising welding head. For the both groups of welding unit in I H Beam SAW Welding Machine, left and right welding arms can be adjusted and operated at the same time.

Classification on BOX I H Beam Gantry SAW Welding Machine

1. Structure Feature: Compared with LHC and LHT models H Beam Welding Machine, which has open structure, LHA series gantry structure has enclosed mechanical frame, which gives confinement on workpiece size;
2. Correspondingly, there exist model variations on gantry frame I H Beam SAW Welding Machine, for accommodating on different sizes and designs of workpieces:
1) LHAZ series middle operating type;
2) LHAC series lateral operating type;
3) LHG / LHD special design models

1 I H Beam Gantry Welding Machine 5
2 I H Beam Welding Machine 4

1. LHAZ Center Control Gantry Frame I H Beam SAW Welding Machine:

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1. Operation Feature of LHAZ Series I H Beam SAW Welding Machine:

1) Application: Applied in semi-automatic or manual H Beam Production Line; Or work as single set welding machinery;
2) Shown in the lefthand photo, operating pendant and SAW control consoles are installed at middle point of main frame horizontal beam, this is basic difference with respect to LHAC models lateral operating type;
3) Operator Position: So, during work, operator stands at middle isle between the 2 arrays of workpiece racks, beneath motor drive moving gantry frame of the machine.
 

2. Advantages and Disadvantages of LHAZ Middle Operating Gantry Frame H Beam Welding Machine:

1) Advantage: Reduce Number of Operator: 1 operator is sufficient for operating and monitoring on working process on the 2 pieces of H Beam simultaneously. Labor saving, reduces variable cost;
2) Disadvantages:
a) Operator labor intensity is more intensive than operators of LHAC models;
b) Wider Land Space Involved: For the same of H Beam web max. height, LHAZ takes 10% wider workshop area than LHAC models.
 

3. Operation on LHAZ Model I H Beam Gantry SAW Welding Machine:

1) Welding Efficiency: There are 2 sets of welding torch in one set of LHAZ. So, the machine can fulfil SAW welding on two pieces of H Beam simultaneously;
2) H Beam Flipping: With the help of traveling crane or other tool, every piece of H Beam needs to have 4 times 90° flipping, to complete 4 passes of welding seam. This poses certain challenge on operator safety/ working pace, and workpiece protection;
3) Welding Technique: Single Arc/ Twin Arc/ Taden Arc submerged arc welding.
 

4. Technical Parameters of LHAZ Center Operating I H Beam Gantry SAW Welding Machine:

 Operator Work Position

 Between H Beam racks
 Number of Operator  One
 Standard Models  LHA4Z/ 5Z/ 55Z

 H Beam Max. Web Height

 1200/ 1800/ 2000 mm

 H Beam Web Thickness Range

 6-32-60mm

 BOX H Beam Flange Width Range

 200-800mm

 H Beam Flange Thickness Range

 6-40-60-80-100mm

 H Beam Length

 4000-15000mm

 H Beam Max. Weight

 20 Ton

 H Beam Welding Position

 45° Fillet Welding

 H Beam SAW Welding Speed

 240-2400mm/min., 

 Inverter control, and digital display

 Quantity of SAW Welding Torch

 2 pieces / Set

 Material Handling

 Travel Crane

2. LHAC Lateral Operation Gantry Frame H Beam Welding Machine

1. Operation Feature of LHAC H Beam Welding Machine:

1) Application: Used in semi-automatic or manual H Beam Production Line;
2) 2 sets of operating pendants are installed at both ends of mechanical main frame respectively;
3) Operator Position: During work, operators stand at both sides external of H Beams supporting rack, 1 people at 1 side respectively, beneath and inside the motorized moving mechanical frame;
4) 2 Arrays of H Beam Holding Racks: Correspondingly, H Beam orientation is also different from LHAZ middle operating.
 

2. Technical Features of LHAC Models Gantry SAW I H Beam Welding Machine:

1) Welding Efficiency: 2 groups of welding torch units in 1 set of machine, welding on 2 pieces of H Beam together;
2) Number of Operator: Two, 1 people takes care on 1 piece of H Beam welding operation respectively;
3) Technical Features of LHAC side managing I H Beam SAW Welding Machine are same as LHAZ center managing: Welding technique (Large current SAW)/ Productivity (2 pieces simultaneously)/ H Beam handling;
4) Electric Control: There is interlock in machine electric control system, so that 2 operators operation in pace can be 100% guaranteed; No wrong operation happened.
 

3. Strong and Weak Points of LHAC Lateral Operating I H Beam Welding Machine:

1) Positive 1: Compacter overall dimension than LHAZ models: Occupy less workshop area;
2) Positive 2: Less stressful workload than LHAZ models: One operator monitors on SAW welding operation of one H Beam only, compared with two pieces in LHAZ center control;
3) Weak Point: Double variable cost compared with LHAZ center management.
 

4. 2 Standard Models of LHAC Lateral Management Gantry Moving I H Beam SAW Welding Machine:

1) LHA4C: For welding on BOX/T/I/H Beam with max. web height 1500mm. This is the model with the biggest sell volume, developed for HB1500 H Beam Production Line;
2) LHA5C: For welding on BOX/T/I/H Beam with max. web height 2000mm, developed for heavy duty HB1800/HB2000 H Beam Production Line.

 

 

5. Technical Parameters of LHAC Lateral Management I H Beam Welding Machine:

  Operator Working Position   Stand on Floor at the external sides of BOX H Beam racks
  Number of Operator  Two
 Standard Models  LHA4C/ 5C
  Max. Web Height of H Beam  1500/ 2000 mm
 H Beam Web Thickness Range  6-32-60mm
 BOX H Beam Flange Width Range  200-800mm
  H Beam Flange Thickness
  Range		  6-40-60-80-100mm
 H Beam Length  4000-15000mm
 H Beam Max. Weight   20 Ton
 H Beam Welding Position  45° Fillet Welding
 H Beam SAW Welding Speed  240 ~ 2400 mm/min., Inverter control, and digital display
 Quantity of SAW Welding Torch  2 pieces / Set
 Material Handling  Travel Crane
1 BOX I H Beam Gantry SAW Welding Machine 17
2 BOX I H Beam Gantry SAW Welding Machine 1
3 I H Beam SAW Welding Machine 10 _20210606141625
4 I H Beam Welding Machine 46 CIMG1808
1 Long Pipe Gantry SAW Welding Machine 1 CIMG1430
2 Long Pipe Gantry SAW Welding Machine 2

3. LHG/LHD Special Design Steel H Beam Gantry SAW Welding Machine

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1. Working Scope of LHG/LHD Series Steel Structure and I H Beam SAW Welding Machine:

1) Tailor Made: This series belongs to special purpose machinery, one design for one business case. Unlike conventional LHA/ LHC/ LHT series, one design being applicable for numerous cases;
2) Flexible Wide Variety Workpieces: Varied design and specifications, to meet on niche demand from small lab use, to large lamp post.
 

2. Technical Features of LHG/LHD Gantry Frame Steel Structure and H Beam Welding Machine:

1) Overall Dimension: Broad range of overall size, from 1600mm height, fitting for adult people operation level; To 4000mm height welding torch installation, need lateral ladder for access;
2) Welding Torch Degrees of Freedom in Steel Pipe BOX H Beam Gantry SAW Welding Machine:
To fulfil welding on complicated working parts, such as tapered member, welding torch should be able to being managed in directions of:
a) X Axis: Moving leftward and rightward along horizontal front beam machine mechanical main frame;
b) Y Axis: Moving forward and backward along the entire length of long workpieces, by means of box frame main body driven along 15-20m length parallel rails;
c) Z Axis: Being driven ascending up and descending down.

 

3. Technical Parameters of Example LHG/LHD Special Design Gantry Frame H Beam Welding Machine:

 Applicable Workpiece Length L 9000-16000mm
 Large End Diameter D ≤Φ2500mm
 Small End Diameter d ≥Φ300mm
 Long Pipe Taper a=8°(a=(D-d)/L)
 Applicable Long Pipe Weight ≤6000kg
 Gantry Moving Speed
 (Welding Speed)		 200-2000mm/min. Inverter control Digital display
 Gantry Movement Driving Motor 2x1.1kW, double drive
 Gantry Movement Parallel Rail 24kg/m, precise honing
 Welding Torch Transverse Moving Motor 0.2kW
 Platform Elevating Motor 2.2kW
 Platform Elevating Speed 1500mm/min.
 

Wuxi JACK Other Steel Structure Machinery besides Moving Gantry Frame I H Beam SAW Welding Machine

Z18 Model I H Beam Assembly and Tack Welding Machine
HB1500 automatic I H Beam Production Line in Russia
YTJ80 Model Hydraulic Drive I H Beam Straightening Machine for Flange
HJ300 Model Hydraulic Drive I H Beam Horizontal Press Straightening Machine
Hydraulic Drive BOX I H Beam 90° Overturning Machine
Motorized Moving Hydraulic Drive BOX I H Beam 180° Overturning Machine
CNC-DX3030 Model BOX H Beam CNC End Face Milling Machine
DX1520 Model Cross T BOX I H Beam End Face Milling Machine

FAQ with Wuxi JACK Moving Gantry Frame H Beam Welding Machine

Below are representative questions on gantry frame moving H Beam Welding Machine, accumulated by Wuxi JACK technicians over the past 2 decades, from 2009 to 2025 year:

  • Q In December 2025, a Vietnam asked that, can H Beam Welding Machine be made into Smart type? Which means, machine operation can be monitored in remote way, such as at office, through mobile phone or laptop, and welding data can also be checked remotely?

    A The conventional I H Beam SAW Welding Machine does not have such function. If customer need, below upgrade are necessary:
    1. 1) Select digitalized welding power supply. For example, Chinese AOTAI brand;
    2. 2) Equip electric control system of H Beam Gantry SAW Welding Machine with HMI (Human machine interface);
    3. 3) Set up LAN (Local area network) between office, mobile phone, laptop and I H Beam SAW Welding Machine itself. Then, welding data can be shared between on site and remote.

  • Q When Purchasing BOX H Beam Gantry SAW Welding Machine, which Factors should be Considered, and Selecting Criterion on Machine Model?

    A
    1. 1. Machine Performance: Can this machine meet customer requirement?
    Gantry frame I H Beam SAW Welding Machine is good at producing heavy and large steels, especially under the condition of H Beam flange and web have thickness over 60mm to 100mm;
    1. 2. Machine Budget: How much does customer plan to buy the machine?
    Compared with other H Beam production machines, gantry frame I H Beam Welding Machine has the least price, this helps customer buying the machine without much stress;
    1. 3. Quantity: How many sets of LHA does customer need?
    The condition is half and half, which means, over 50% customers choose to introduce 2 sets of I H Beam Gantry SAW Welding Machine into their workshop, to form into a line, this helps making welding operation more fluent and high efficient;
    1. 4. Land Occupation: What is floor area for installing LHA models machine?
    This should be considered when planning on workshop layout for H Beam production, One set of the H Beam Gantry SAW Welding Machine needs around 150m2 area (10m width x 15m length) for installation. Some customers also ask on AutoCAD format machine drawing for making layout on workshop plan.

  • Q What are Technical Characteristics of Wuxi JACK Gantry Frame I H Beam SAW Welding Machine?

    A
    1. 1. Welding modes is usually heavy welding: Large current (working parameters: 550A- 1000A in Single Arc) and voltage SAW Submerged welding, produces H Beam with large welding toe. So, when customers produce heavy H Beam, especially when flange thickness in the range of 60mm to 100mm, H Beam Gantry SAW Welding Machine is good choice;
    2. 2. Welding torches position can be adjusted conveniently and precisely along:
    1. 1) Horizontal direction X axis;
    2. 2) Up and down direction Y axis;
    3. 3) Forward and backward direction Z axis;
    During welding operation, welding arc tracker act with integrated style of pneumatic along horizontal direction, and mechanical along vertical direction, convenient and high precision, so as to get the optimal welding effect;
    1. 3. Welding velocity is moving velocity of gantry frame along the parallel rails, which can be adjusted continuously by means of A.C. inverter, and displayed intuitively in digital display of H Beam Welding Machine operating panel;
    2. 4. Stable Movement of Gantry: Gantry movement is double drive, which means both sides of gantry frame are installed with A.C. driving motors; Besides, At the lateral side of rail there is stop wheel unit, guaranteeing the max. stability of gantry movement, and hence welding torch operation.

  • Q As a Machine Integrating Outsources Units like SAW Welding Power Supplies/ SAW Flux Unit, how does Electric Control System of Gantry Frame H Beam Welding Machine Manage on Reliable and High Efficient Operation?

    A
    1. 1) Electric control system consists of control board and operating panel. Control board is installed on the moving beam beneath gantry, and operating panels are installed on the left and right columns of gantry. By operating pushbuttons, all motion of the machine is realized, also welding parameters can be controlled, fulfilling function as flux recovery, etc.
    2. 2) Machine operating panel is installed together with the 2 control consoles of the 2 sets of SAW welding power supplies, on the horizontal beam of I H Beam Gantry SAW Welding Machine, at the height of adult operator. In this way, operator can control on machine operation at single point, without further movement;
    3. 3) For LHAC models I H Beam Welding Machine, which need 2 operators standing at external both lateral sides of moving gantry, electric control system of the machine has interlock function, that official operation can not be started by either one of the 2 operators, but their work together instead. In this way, reliable operation can be promised, and malfunction can be avoided.

  • Q How to Guarantee Stable and Smooth Movement of Gantry Frame, the Critical Work Action of I H Beam Gantry SAW Welding Machine?

    A
    1. 1. Gantry movement can be shifted between high speed and low speed. It is controlled with A.C. inverter, which rectifies A.C. electricity into D.C. electricity, and then inverts the D.C. electricity back into A.C. electricity of adjustable voltage and frequency. The inverted A.C. electricity then powers A.C. motor, attaining purpose of speed control;
    2. 2. Gantry moving speed (Welding speed) is displayed real time on digital operating panel of I H Beam SAW Welding Machine, in flashing mode. Operator can monitor on this velocity to judge it is proper or not;
    3. 3. During installation of H Beam Welding Machine, levelness of parallel rails for gantry movement should be guaranteed within tolerance:
    1. 1) Levelness of rail on the gantry platform should be kept within≤0.5mm;
    2. 2) Adjust clearance of rail joints at carriage, welding arm and gantry, making clearance between eccentric rollers and rail ≤0.3mm，flexible motion without blockage.

  • Q Please Give Daily and Regular Maintenance and Service Check Points on Gantry Frame I H Beam Welding Machine?

    A
    1. 1. No sundries on rail surface and its both sides. Clean working site regularly, guaranteeing smooth and stable running of gantry;
    2. 2. Adjust clearance of control rollers of rails regularly, to maintain it within stipulated tolerance;
    3. 3. Clean off blockage on the sieve of flux recovery unit regularly, before and after each shift of I H Beam SAW Welding Machine everyday;
    4. 4. Welding tip and wire are insulated from welding head with insulating board. Check prime condition of insulating board regularly, and replace a new one immediately upon defect condition to be found. Prohibit on short circuit;
    5. 5. Maintenance of welding machine please see its manual book, which is provided customer together with manual book of I H Beam Gantry SAW Welding Machine;
    6. 6. Lubrication：
    1. 1) Apply lithium based grease on rolling bearings, replacing once a year;
    2. 2) Apply 30# mechanical oil on reducers, replacing once a year;
    3. 3) Apply 30# mechanical oil on racks, replacing once a week.

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A. Applicable Workpiece and Application of CNC-CP6/7-2000~3000/L:  Workpiece Sizes and Models/ Applied Industries/ Functions
B. Technical Characteristics of CNC-CP6/7-2000-3000/L:  The 6th V Axis and 7th W Axis/ Cutting Torch Swiveling Unit
C. Main Units of CNC-CP6/7-2000-3000/L:  Mechanical System/ Electric Control System
D. Operation on CNC-CP6/7-2000-3000/L:  Operation Station/ Generating Cutting Program/ Workpiece Supporting Tools
E. Technical Parameters of CNC-CP6/7-2000-3000/L 
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5 Axis CNC-CP5-1400/L Classical Medium Size CNC Pipe Cutting Machine
5 Axis CNC-CP5-1400/L Classical Medium Size CNC Pipe Cutting Machine
A. Extensive Use of CNC-CP5-1400/L:  Function and Workpiece Specifications/ Wide Application
B. Great Value of CNC-CP5-1400/L:  Breakthrough on Pipe Cutting Operation: Before versus After
C. Technical View on CNC-CP5-1400/L:  The 5 Axis of Cutting Torch/ Specifications of 5 Axis / Operation
D. Major Configuration of 5 Axis CNC-CP5-1400/L:  General layout/  Cutting Torch/ Thermal Gas Cutting System / Pipe Fixture
E. Superiority of Control Technique in Wuxi JACK CNC-CP5-1400/L: 
F. Technical Parameters of CNC-CP5-1400/L 
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Z30 Heavy Duty Large I H Beam Assembly Machine
Z30 Heavy Duty Large I H Beam Assembly Machine
A. Specialty of Z30 Heavy duty model:  Purpose/  Max. Workpiece Size/ Features 
B. Application and Major Specifications of Z30:  Task/ Technical Specifications of Z30 
C. Working Style and Configuration of Z30:  2 Main Functions/ Assembly Form and Welding Mode and Style on 3,000mm Height Large T I H Beam/ Operation
D. Technical Features of Z30:  Workpiece Assembly Principle/ Composition of Assembly Unit/ Tack Welding
E. Three Working Modes of Machine: Manual/ Single Cycle/ Auto Cycle
 
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YTJ60 Medium High duty Hydraulic H Beam Straightening Machine
YTJ60 Medium High duty Hydraulic H Beam Straightening Machine
A. The Task and Applicable Workpieces of YTJ-60 Hydraulic: Suitable Working Parts
B. The Advantages of YTJ-60:  Operation / Working Speed / Straightening Performance 
C. Straightening Process Control of YTJ-60:  The Heaviest Straightening Capacity / Precondition /  Special Unit 
D. Technical Parameters of YTJ-60:
 
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Heavy Duty Thick Thickness YTJ-80 I Beam Straightening Machine
Heavy Duty Thick Thickness YTJ-80 I Beam Straightening Machine
1. Highlight of YTJ-80 Heavy duty Machine: Personalized Specification
2. Operation of YTJ-80 and YTJ-60: 
3. Technical Parameters of YTJ-80 Heavy duty:
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High Efficiency Hydraulic Drive YTJ-50 I Beam Straightening Machine
High Efficiency Hydraulic Drive YTJ-50 I Beam Straightening Machine
1. Application of YTJ-50 Hydraulic:
2. Main units of the YTJ-50 Hydraulic:  Main Frame and Base / Front side and rear side conveyor / Straightening Roller unit / Hydraulic station / Bottom transmission unit / Motor reducer / Web clamp unit / Control board and Operation station 
3. Technical Specification of YTJ-50:  Operation 
4. Technical Parameters of YTJ-50 Hydraulic:
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HJ-200 Hydraulic High Efficiency Length Direction H Beam Straightening Machine
HJ-200 Hydraulic High Efficiency Length Direction H Beam Straightening Machine
A. Purpose of HJ200;
B. Working Principle of HJ200: Working Nature/ Acting unit/ Straightening Stroke Management;
C. Operation on on HJ200:  Straightening Style/ Workpiece Sending Forward/ operating pendent / Straightening Segment Adjustment/ Conventional Models
D. Working Process of of HJ200
 
 
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Steel Structure Beam Chain Turnover Manipulator
RT20 Hydraulic Drive Beam Steel Structure Chain Rotator Equipment
A. Usage and Application of RT20:
B. Advantages of RT Series:
C. Technical Parameters of RT20:
D. Performance and Feature:
E. Operation:
F. Range of Supply on Wuxi JACK RT20:
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Stationary And Movable BOX H Beam 90°/ 180° Turnover Cart
Stationary And Movable BOX H Beam 90°/ 180° Turnover Cart
A. Function and Application of 90°/ 180°: 90°/ Stationary 180°/ Movable 180°
B. Operation Principle of 90° and 180°:  Manipulator Quantity/ Work Zone of 180°/ Operation Mode of 180°
C. Composition and Operation of 90°/ 180°  : Main Units / Major Working Steps
D. Strong Points of Wuxi JACK 90°/ 180° : Cables and oil pipes  / Flexible Operation / Flipping Angle Precision Control/ Ingenious Design
E. Put into Use on 90°/ 180° : Installation/  Application Form/ Operation Form
F. Technical Parameters of 90°/ 180°
 
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CNC-CG6000 To CNC-CG10000 Large Span CNC Shape Cutting Machine
CNC-CG6000 To CNC-CG10000 Large Span CNC Shape Cutting Machine
A. Scope and Operation Feature of Large Model:  Percentage of Conventional Versus Large Models/ Scope and Operation Features of Large Models
B. Usage and Great Value of Large Models:  Function/ Put into Use/ Double Drive/ Operation/ Benefits
C. Control and Drive Units of Large Models: CNC and Electric Control System/ Servo Drive System/ Cutting Torch Transverse Moving Unit
D. Mechanical Frame and Thermal Cutting Systems of Large Models:  Supplementary Cutting Function Units/ Mechanical Frame/ Oxygen fuel flame cutting gas circuit system/ Plasma Power Supply
E. Technical Parameters of CNC-CG6000 to CNC-CG10000 Large Models
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Basic Configuration CG4000 Single Drive CNC Strip Flame Plate Cutting Machine
Basic Configuration CG4000 Single Drive CNC Strip Flame Plate Cutting Machine
A. Usage and Development Background:  Function/ Metal Plate Applicable for Flame Cutting
B. Specification and Wide Use of CNC-CG4000:  The No.1 Selling Volume of CNC-CG4000 Model/ Implication on Model CNC-CG4000 / Application of CNC-CG4000
C. Main Units and Arrangement in CNC-CG4000:  Mechanical System, its Driving and Transmission Units/ Thermal Gas Cutting System/ Electric Control System/ Arrangement of Main Units
D. Technical Parameters of CNC-CG4000
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HGZ80 Multi-functional Simple Operating Self Adjusting Welding Roller Carrier
HGZ80 Multi-functional Simple Operating Self Adjusting Welding Roller Carrier
1. The Usage of HGZ80 Multi-functional Self Adjusting:
2. Operation of HGZ80:
3. Arrangement of HGZ80:
4. Benefit of HGZ80:
5. Technical Parameters of HGZ80:
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