MP50 Plate Butt Welding Machine with Fully Penetration SAW

1. What can MP50 Plate Flat Butt Welding Machine do for Customer?

1) Model Feature: MP50 is the largest model in MP series Plate Butt Joint Welding Machine. It has up to 5,000mm available length of melt through welding seam for plate joint;

2) Function: In a nut shell, MP50 model can finish joint on any two pieces of sheet metal plates, with the largest width of 5000mm (Equals to finished welding seam length), so that you can get much longer integral piece of metal plate than original thick plate from Steel Mill, which usually have length up to 15m:

A piece of 30m length joint plate, from original 2 pieces of 15m length plate, in Wuxi JACK MP50 model machine: (Fig.1)

3) Applicating Sites: In many large scale projects such as LNG (Liquified Natural Gas) tank/ Power Plant/ Oil Derrick/ Railway Water Conservancy Channel/ Travel Crane/ Derrick, you may need bigger and longer size of steel plates, as raw materials from this MP50 Plate Flat Butt Welding Machine;

4) Or you can joint several pieces of narrower and or shorter left over cut off plates which seams useless if not turned into a larger one, with operation of MP50 model machine:

Test piece of joint plate from narrower ones, in Wuxi JACK MP50 model machine: (Fig.2)

2. Technical Characteristics of MP50 Plate Butt Welding Joining Machine:

1) Large Size of Machine Body in the Plate Butt Joint Welding Machine:

Being the biggest model with the longest working stroke in MP series Plate Butt Joint Welding Machine, MP50 has obvious longer and higher overall dimensions of main frame, as you can find from the first photo:

a) It has around 6.3m length of butt welding work table and gantry beam;

b) Gantry platform top surface has nearly 3.5m height after fully installation. So, a ladder is assembled at lateral side of the gantry platform:

Assembled and unpainted mechanical main frame, gantry and welding work table of Wuxi JACK MP50 model machine: (Fig.3)

2) Welding Groove is a Must in MP50 Plate Flat Butt Welding Machine:

a) Plate Thickness:  With increasement of plate size, so is its thickness. Although in MP series machine, all the models from MP20 to MP50 share the same range of metal plate thickness, usually metal plates for joint in MP50 model has higher thickness;

b) Plate Beveling Required: As we know, without welding groove, the max. thickness for satisfactory fully penetration welding is 15mm. So, edge beveling process is pre-requisite prior to the melt through welding, on joint 15mm thicker steel plate;

c) Related Model: For flame triple cutting system in the machine, please check the 2^nd photo, and product section of “MP25 model”:

Oxygen fuel flame triple cutting torch unit, in Wuxi JACK MP50 model machine: (Fig.4)

3) Installation Way of SAW Welding Flux Recycling Unit in Plate Joint Weld Machine:

a) SAW Welding Flux Recycling Unit: As you can find from the 3^rd photo, in MP50 (MP40/ MP45 also) models machine, the grey color box body of SAW (Submerged arc welding) flux recycling unit is installed on the butt welding traveling carriage, instead of just put on the gantry platform:

The grey color welding flux machine, and bright yellow color flux hopper, on SAW butt welding torch of Wuxi JACK MP50 model machine: (Fig.5)

b)  What is the reason? Because for long stroke of 4,000mm and above (Corresponding with models of MP40/ MP45/ MP50) machine, sometimes suction force is not enough for inhaling the intact welding flux back to the recycling body, suppose putting the recycling unit onto machine platform, in stationary manner. So, we make it the shortest distance in the way of recycling unit integrated onto moving welding carriage;

4) Large Butt Welding Current in Plate Butt Welding Joining Machine:

a) Melt Thru Welding Current: The 4^th photo records on one of the workpiece samples during validating on MP50 model machine. For fulfilling on successful melt through welding (Single side welding double side seam forming), critical welding process parameters were tried and recorded: For this joint plate of 10mm thickness, the corresponding welding current is 550A, and welding voltage is 32A:

The finished test piece, with validated welding process parameters marked on its surface, during trial run on Wuxi JACK MP50 model machine: (Fig.6)

b) SAW Welding Power Supply: In general, MP series plate Flat Butt Welding Machine is equipped with the same specification level of welding power supply (For both Submerged Arc Welding and CO₂ GMAW): DC1000/ DC1250 for SAW, and 500A for CO₂ GMAW with PHJ and ZHJ series H Beam Fabrication Machine;

5) Alignment of Metal Plates along its Length Direction in Plate Butt Welding Joint Machine:

a) Requirement: Wider metal plates before and after joint usually come with longer length;

b) To guarantee plate butt joint quality of these long workpieces, in MP series machine, there are array of aligning rollers installed in vertical orientation and distributed in strictly linearity along input conveyor roller tables, which is used for aligning on sheet metal steel plates, in the form of hard stops;

c) This is especially helpful for larger models, including the largest one of MP50.

3. Technical Parameters of MP50 Plate Butt Joint Welding Machine: