1 Circumferential and Longitudinal Seam Welding Machine 1

Wuxi JACK Welding Equipment and Welding Machine, 

Providing the Most Proper Welding Solutions for Customer!

Welding Equipment: Gantry Welding Machine, Longitudinal Seam Welding Machine, Built Up Welding Machine

Wide Variety and Application of Welding Equipment and Welding Machine:

1. Function: Welding Equipment covers different structures/ designs/ specifications of Welding Machine/ mechanisms/ units, for implementing on various types of welding tasks. It is usually in the form of special design and tailer made;

Wuxi JACK special made pipe flange Welding Machine welding unit and workpieces: (Fig.1)

Fig1 Pipe Flange Welding Machine 3

2. Welding Modes, Welding Form, Welding Seam, and Applicable Workpieces of Welding Equipment and Welding Machine:

1) SAW (Submerged arc welding) – Large current on thicker parts;
2) GMAW CO2 gas shielded welding – Smaller current on thinner parts;
3) TIG Tungsten inert gas welding – High strength materials;
4) MIG Melt inert gas welding – Weathering materials;
In the form of:
1) Strap cladding build up welding;
2) Back welding;
3) Finished covering welding ...
On different kinds of workpieces:
1) Cylindrical parts: Tube/ pipe/ cylinder;
2) Structure members;
3) Steel structure beams..., etc.;
With welding seams of:
1) Longitudinal seam;
2) Circumferential seam;
3) Or both;
4) Internal and or external welding;

Wuxi JACK Circumferential and Longitudinal Seam Welding Machine: (Fig.2)

Fig2 Longitudinal Seam Welding Machine 3

3. Structures and Typical Cases of Welding Equipment and Welding Machine:

In practical application, Welding Equipment and Welding Machine comes in various forms of specific structure/ overall dimension/ operation mode, being applied in nearly every corner of manufacturing industry. There exist all branches of important Welding Equipment:
1) Pipe Welding Machine: Fulfilling back welding/ build up welding/ finished welding;
2) Circumferential and Longitudinal Seam Welding Machine: Carry out longitudinal welding, or circumferential welding, or both, on various types and sizes of tubes and pipes, internal and external wall of working parts;
3) Gantry Welding Machine: Usually in large overall dimension with box frame, of stationary or motor drive moving, for working on large workpieces. Such Welding Equipment is often equipped with Welding Rotator (Welding Roller Bed), to serve as holding and rotating unit for workpieces;
4) Welding Fixture: In the various forms of supplementary function Welding Equipment, special design and produced, to support and clamp working parts reliably during welding;

Wuxi JACK Pipe Internal Longitudinal Seam Welding Machine: (Fig.3)

Fig3 Pipe Welding Machine

4. Common Technical Characteristics of Welding Equipment and Welding Machine:

1) Special Design and Variation: These Welding Equipment comes case by case: It is developed every time under customer personalized demand. So, it has wide variety of forms;
2) Operation: Put into use of Welding Equipment and Welding Machine focuses on realizing certain type of welding mode, on certain type of workpiece, usually special designed and manufactured. Here we just pick up 4 business cases as applicating examples of Wuxi JACK Welding Equipment for serving on customers;
3) Workpiece Fixture: Considering different types and tonnages of workpieces and requirement, the on site work of Welding Equipment and Welding Machine very often involves assistant support from Welding Fixture;
4) Quick reviewing on strong points of our Welding Machine is introduced in summary slides web page “Brief on Wuxi JACK Pipe Welding Machine and Welding Equipment”.

Rich Assortment of Wuxi JACK Welding Equipment

Gantry Welding Machine

Function, Wide Use and Technical Specialty of Gantry Welding Machine:

 

1. Structure: Gantry Welding Machine takes on the largest share in Welding Equipment application. Its mechanical structure is in the form of stationary, or motor drive moving mechanical gantry frame, in the size ranging from adult operator height, to 4,000mm height or even higher;
2. Strong Points: Gantry Welding Machine has solid structure and strong strength, ample operating space, which can adapt to wide range of workpiece sizes, and withstand on operating large and strong workpieces, delivering consistent and durable welding performances. So, it is very important branch of Welding Equipment;
3. Wide Application: Gantry Welding Machine can be adopted in large scale project site such as Municipal Engineering, for fabricating on electric light pole; Or “small” laboratory sites, for validating on various kinds of welding mode and newly developed products;
4. Wuxi JACK 2 Business Examples: Here we give introduction on 2 types of Gantry Welding Machine, which belong to common used Welding Equipment: Gantry Welding Machine for Lamp Post Production, and Gantry Welding Machine for Lab Use.

A. LHG Model Large BOX Frame Longitudinal Seam Gantry Welding Machine for Lamp Post Production

Production and On Site Installation of Large BOX Frame Gantry Welding Machine:

Operating Video of Pipe Longitudinal Seam Gantry Welding Machine:

1. Usage of LHG Large BOX Frame Longitudinal Seam Gantry Welding Machine:

1) Design sketch on applicable lamp post being fabricated in LHG model Gantry Welding Machine: (Fig.4)

Fig1 Gantry Welding Machine 11

2) Lamp Post Specifications to be Welded in Gantry Frame Longitudinal Seam Welding Equipment:

a) Length ranges from 9m to 16m;

b) Longitudinal Slant Angle: The lamp post is in slant length direction shape. The inclination angle along the entire length of the lamp post is ≦8°;
c) Cross Section Diameter: From Φ300mm to Φ25,00mm;
d) Lamp Post Max. Weight: 6 Ton;

3) Required Capability of LHG BOX Frame Gantry Welding Machine:

a) Performing finished SAW on the lamp post, following back welding;
b) External longitudinal welding seam;
c) Technical requirement on welding in this Welding Equipment is: It should have broad welding cover face, and deep welding deposition;
d) Correspondingly, both welding current and welding voltage should be large, in the mode of SAW.
 

2. Design Print of LHG Model Motor Drive Moving Longitudinal Gantry Welding Machine:

3. Technical Features of LHG Lamp Post Production Gantry Welding Machine:

1) Motor Drive Moving Frame: The gantry frame Longitudinal Seam Welding Machine has 16.5m long traveling rail, accommodating on the max. length of 16m long lamp post;
2) Heavy duty Precise Guiderail: To fully guaranteeing stable running of this large Welding Equipment, the 16.5m long cutting rail is adopted with that of CNC Strip Plate Cutting Machine:

Guiderail for gantry frame moving of the LHG Longitudinal Seam Gantry Welding Machine: (Fig.5)

Fig5 Longitudinal Seam Gantry Welding Machine 17
 

3) Mechanical Main Frame of Longitudinal Seam Gantry Welding Machine:

a) Fitting for Large Lamp Post: To cater for diameter Φ300mm to Φ2500mm lamp post to be fabricated in this Welding Equipment, the entire platform can be elevated integrally inside the 4,000mm height box frame;

b) Solid structure and lifting platform of the LHG Gantry Welding Machine: (Fig.6)

Fig6 Longitudinal Seam Gantry Welding Machine 12
4) Elevation Guidance: Such platform up and down movement is guided with 4 pieces of precise linear guiderails. The guiderails are assembled onto the pieces of 4 upright columns, forming box moving frame of the large Welding Equipment:

Platform elevation guiderail in LHG Gantry Welding Machine: (Fig.7)

Fig7 Longitudinal Seam Gantry Welding Machine 16

5) Welding Supplementary Function Units in Longitudinal Seam Gantry Welding Machine:

a) Location: SAW power supply/ wire feeding unit, and welding flux recovery machine are all put on the overhead elevating platform of the longitudinal seam Gantry Welding Machine, accessed by way of climbing ladder:

b) Vertical view on elevating platform of LHG Gantry Welding Machine: (Fig.8)

Fig8 Longitudinal Seam Gantry Welding Machine 13

6) Welding Torch Group in the Longitudinal Seam Gantry Welding Machine:

a) Welding Quality Promise: To fully make sure welding torch always aim at centerline of welding seam, during operation of the longitudinal seam Welding Equipment, the welding torch is equipped with one set of cross slides inching adjustment unit:

b) Welding torch precise mechanism of Longitudinal Seam Gantry Welding Machine: (Fig.9)

Fig9 Longitudinal Seam Gantry Welding Machine 14

7) Workpiece Fixture of Longitudinal Seam Large Gantry Welding Machine:

a) Role: To reliably support the taper 16.5m long length lamp post in this large Welding Equipment, the lamp post holding fixture is in the form of 2 pieces of Welding Roller Bed;
b) Reliable Welding Operation: By means of welding turning roller revolving, the longitudinal welding seam on the lamp post will be rotated to 12 o’clock position, which is the perfect position for performing welding in the Gantry Welding Machine:

c) Lamp post fixture of Longitudinal Seam Gantry Welding Machine: (Fig.10)

Fig10 Longitudinal Seam Gantry Welding Machine 15

4. Technical Parameters of LHG Lamp Post Gantry Welding Machine:

  Workpiece Length L  9000 ~ 16000 mm
 Large End Diameter D  ≤2500 mm
 Small End Diameter d  ≥300 mm
 Workpiece Taper  a=8°(a=(D-d)/L)
 Workpiece Weight  ≤6000 kg
 Gantry Travel Speed (Welding Speed)  200 ~ 2000 mm/min.
 Gantry Travel Drive Motor  2 x 1.1kW, double drive
 Gantry Travel Rail  24kg/m, precise honing
 Welding Torch Transverse Moving
 Motor
 0.2 kW
 Platform Elevating Motor  2.2 kW
 Platform Elevating Speed  1500 mm/min.
 

Stationary Smaller Gantry Welding Machine for Lab Use

1. Application of Stationary Lab Use Gantry Welding Machine:

1) Business Case: Customer of this set of Lab Use Gantry Welding Machine is a world class renowned welding power supply producer in the industry;
2) Task: Wuxi JACK designed and produced this special made Welding Equipment. It will be installed in customer welding laboratory, for validating on various newly developed welding technique and new model welding power supply;

3) Technical Characteristics of Lab Use Gantry Welding Machine:

a) Smaller Overall Dimension: Compared with LHG model lamp post Gantry Welding Machine, this Welding Equipment has more compact size;
b) Operating Height: For acquiring convenient operation on adjusting welding control console, mechanical frame of the Gantry Welding Machine is in the height of adult male;
c) Stationary Base: Besides, the mechanical body of the Welding Equipment is fixed into floor, because no need to perform long length welding on workpieces.

 

2. Technical Requirement on Lab Use Gantry Welding Machine from Customer:

Correspondingly, this special made Lab Use Gantry Welding Machine should meet the requirement of:
1) Accurate and Smooth Welding Torch Movement: The front and rear sides of Welding Equipment mechanical gantry beam are precisely machined. The front beam is assembled with precise linear guiderail and rack, for guiding and transmission of welding torch in the most stable and precise way;
2) Safety Measure: There are mechanical hard stops at both ends of the horizontal guiderails, on the transverse beam of the Gantry Welding Machine;

3) Welding Torch Position Control in Stationary Gantry Welding Equipment:

During welding operation of the lab use Welding Equipment, welding torch should be able to be manipulated along 3 directions:
a) X Axis: Leftward and rightward--- This is accomplished by means of welding torch carriage structure: Its movement along transverse beam of the Gantry Welding Machine;
b) Y Axis: Up and down--- By means of welding torch lifting and lowering down along guiderail of carriage;
c) Z Axis: Forward and backward --- By means of welding torch moving perpendicular to horizontal beam of the Gantry Welding Machine.

3. Technical Parameters of Stationary Lab Use Gantry Welding Machine:

 Gantry Beam Length  4000 mm
 Valid Stroke of Welding Carriage  3400 mm
 Welding Velocity  100~1000 mm/min.
 Welding Velocity Adjustment  VFD Inverter
 Vertical and Horizontal Adjusting
 Stroke of Welding Head
  200 mm, Manual
  Welding Carriage Travel Transmission   Gear and Rack Couple
  Welding Carriage Travel Guideway  Precise Ball Bearing Linear
 Guideway
 Welding Torch Tilting Range  -30°~30°
  Gantry Welding Machine Height  Based on 700mm Height
 Work table
 Distance between Welding Torch
 and front side of Gantry Beam
 400 ~ 500 mm

Pipe Longitudinal Seam Welding Machine

1. Function of Pipe Longitudinal Seam Welding Machine:

1) Usage: Pipe Longitudinal Seam Welding Machine, as its name suggests, is used for implementing on entire length longitudinal seam welding on thin wall cylindrical workpieces;

2) Workpiece Specifications of Pipe Longitudinal Seam Welding Machine:

Depending on specific model of the Welding Equipment,
a) Diameter: Φ180mm ~ 1200mm;
b) Pipe Wall Thickness: 0.3mm ~ 6mm;
c) Pipe Length: 1,000mm ~ 3,000mm;
d) Pipe Material: Stainless steel, Al, alloy, carbon steel, etc.;
3) Welding Mode: In Pipe Longitudinal Seam Welding Machine is majority TIG (Tungsten inert gas welding), which has high precision and fine welding seam formed.

 

2. Structure and Working Principle of Pipe Longitudinal Seam Welding Machine:

1) Structure: As can be seen from the lefthand photos, the Pipe Longitudinal Seam Welding Machine is in the structure of fixed working table, in the height of convenient operation for operator;
2) Workpiece Holding: There is a piece of horizontal gloss solid mandrel being installed beneath working table of the Welding Equipment, which comes all the way through internal of the cylindrical working parts, serving as workpiece fixture during running of the pipe Longitudinal Seam Welding Machine;
3) Workpiece Fixture: Right above the cylindrical working parts, there is an array of keys, which are driven with and clamped by means of air cylinder, to clamp down the cylindrical parts firmly, in the welding period of pipe Longitudinal Seam Welding Machine operation;
4) Welding Operation: During work, the welding head move in horizontal way along working table of the Pipe Longitudinal Seam Welding Machine, in the adjustable working speed of TIG welding;
5) Welding Performance Guarantee: During working of the Welding Equipment, the mandrel is circulated with cooling water, guaranteeing non-deformation of the thin wall workpiece, which is being welded in this Pipe Longitudinal Seam Welding Machine.

 

3. Technical Parameters of Pipe Longitudinal Seam Welding Machine:

 Model of Pipe Longitudinal Seam Welding Machine  LW1000/ LW1500/ LW2000
 / LW2500/ LW3000
 Max. Cylinder Length (mm)  1000/ 1500/ 2000/ 2500
 / 3000 mm
  Cylinder Diameter (mm)  ø180~800/ ø 200~1000/ 
 ø 260~1000/ ø 300~1000
 / ø 400~1200
  Wall Thickness (mm)  0.3~5/ 0.4~6/ 0.5~6/ 0.5~6 /
 0.5~ 6
  Welding Speed(mm/min.)   150 ~1500(VFD)
 Positioning Precision (mm/m)  ±0.2
 Max. Welding Current (A)  300
 Purpose  Thin plate butt welding, thin wall pipe Longitudinal Seam welding
 Material  Carbon steel, Stainless steel, Alloy steel, Al
 Welding Mode  TIG/ MIG/ MAG/ CO2 Gas Shielding/ Plasma Welding/ SAW

Pipe Built Up Welding Machine (Hard Facing)

1. Application of Pipe Built Up Welding Machine:

Function: Pipe Built Up Welding Machine, the other names is surface Hard Facing Welding Machine, is for depositing a layer of hard facing on surface of workpiece, especially cylinder bodies, to prevent the workpieces from growing worn;
 

2. Operation of Pipe Built Up Welding Machine:

1) The Welding Mode in this Welding Equipment of pipe Built Up Welding Machine usually adopts with SAW (Submerged arc welding), which features in small welding current and large welding voltage, rendering thin layer of hard facing formed on external face of cylindrical working parts;
2) Workpiece Support: During working of the pipe Built Up Welding Machine, the workpiece is support on a set of Welding Rotator (Welding Roller Bed), which revolves the workpiece into revolve for welding operation;
3) Welding Speed: Of pipe Built Up Welding Machine equals to rotating linear speed of welding turning roller. It should be adjusted by means of A.C. inverter, and displayed in real time;
4) Welding Torch Movement: Welding head moves along transverse beam of the Welding Equipment, carrying out welding in the constant pitch, attaining the purpose of hard facing on surface of workpiece, in pipe Built Up Welding Machine.

 

3. Technical Features of Pipe Built Up Welding Machine:

1) Electric Control: The entire working process of the Pipe Built Up Welding Machine is controlled with PLC (Programmable logic controller);
2) Welding speed is modulated with A.C. inverter, and being instantaneously shown in operation panel;
3) Duty cycle of welding can be up to 100%.

4. Working Video of Pipe Built Up Welding Machine:

Longitudinal Seam Welding Machine
01

Pipe Longitudinal Seam Welding Machine
02

Girder Longitudinal Seam Welding Machine
03

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WUXI JACK TECHNOLOGY CO., LTD
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