Gmaw Welding Machine

    The G-type deep penetration pulse welding machine is a further electromagnetic compression arc welding machine based on high-speed pulse welding machine, which makes the arc density higher, the arc more concentrated, and the arc more straight to achieve greater penetration, which is conducive to welding medium thick plates. The welding speed is faster and the heat input is low. Especially when using double 1.6mm welding wire for high current welding, the matching power supply is larger. If using 1.6mm solid core welding wire, the welding current is 300A, and the matching voltage can be 27V, which is very suitable for metals with high heat input requirements.

    Gas shielded welding with flux cored wire has been promoted and widely used in industries such as shipbuilding, steel structures, bridges, automobiles, and mining machinery for many years. The gas shielded welding of flux cored wire mainly uses pure CO2 gas or 20% CO2+80% Ar as the shielding gas, and the process is very mature. However, there are still some shortcomings in the application process, mainly including: firstly, the welding wire is prone to moisture; Secondly, when welding with 1.2mm flux cored wire at currents below 160A, there are small balls  at the end of the wire, which is not conducive to controlling the arc and molten pool. Therefore, welding with currents above 160A is mostly used; Thirdly, the depth of melting is shallow, the arc is weak, and the penetration power is not strong.

     When we use deep penetration high-speed pulse or high-speed pulse welding in flux cored wire, even the current is 80A, arc spray transition can also be realized. And there are no small balls at the end of wire when arc burns. The molten pool and arc are easy to control, and the molten pool is clear; The melting depth is greater,  30% greater than that of the core wire in general DC gas shielded welding. High speed pulse arc has greater stirring force and stronger arc force. Therefore, it is easier for flux cored wire welding slag and gas to overflow during welding.

Features

1. Support deep-penetration welding, high-speed pulse welding, DC MAG welding
2. While welding mild steel, its speed is 1-1.3 times of the general MIG/MAG welding, and its penetration force is also 45% higher than the general MIG/MAG welding
3. Welding flux-cored wire, arc is is stronger, and the penetration force is 30% higher than the general MIG/MAG welding
4. While using pulse welding or synergic welding, there will be few spatter
5. Suitable for welding of medium/thick plate in such industries like steel structure, ship-making, bridge, windpower, and so on

Parameter

Our NBC-630G/800G can weld two wires of 1.0mm, 1.2mm, and 1.6mm.

The G-type deep penetration pulse welding machine is a further electromagnetic compression arc welding machine based on high-speed pulse welding machine. When the arc is compressed, the arc density is higher, the arc is more concentrated, and the arc is more straight to achieve greater penetration, which is conducive to welding medium thick plates. The welding speed is faster and the heat input is low. Especially when using 1.6mm or more welding wire for high current welding, the matching power supply is larger. If using 1.6mm solid core welding wire, the welding current is 300A, and the matching voltage can be 28V, which is very useful for metals with high heat input requirements.

The model we developed using deep penetration pulse welding: NBC-800SS welding machine (deep penetration pulse single arc double wire welding machine), can match low voltage welding with double 1.0, double 1.2, and double 1.6 welding wires.

Welding machine features:

① It has functions of deep penetration pulse welding, high-speed pulse welding, and DC gas shielded welding

② The solid wire with a diameter of 1.2 can be stably welded with a small current of 40A; Low current welding can replace TIG welding, with a speed 4-5 times faster than TIG welding.

③ When welding with functions such as pulse and unification, ultra-low spatter can be selected.

④ When welding carbon steel, the welding speed is 15% faster than ordinary gas shielded welding, and the penetration force is 60% greater.

    Cold arc welding, also known as cold metal transition welding, currently mainly includes STT (surface tension transfer), CMT (timely wire withdrawal), and Cold Arc (timely shutdown at the moment of arc short circuit) to achieve cold arc.

    Sichuan Morrow Welding Development Co., Ltd. has developed cold arc transition welding machines such as DSP-500TG5 cold arc welding function 10 years ago. In 2023, we developed a timely withdrawal welding wire to achieve cold metal transition welding machine. Our welding machine model is MCT-350, which is matched with robots for high-quality cold arc welding.

Main features:

① The welding machine adopts IGBT inverter technology and DSP digital precise control.

② It has overcurrent, undervoltage, overheating, and phase loss protection functions.

③ Wire retraction frequency: 80-120Hz.

④ During welding, the heat input to the weld seam is low.

⑤ No spatter welding, and the arc is very stable.

⑥ High quality welding of thin plates suitable for arc short-circuit transition

Welding and bridging.

⑦ Can weld carbon steel, stainless steel, aluminum and its alloys, copper

Various metals such as galvanized sheet.

 Main features:

■ Digital display and presetting of current and voltage, wide adjustment range of voltage

■ Particular function of automatically removing melting-ball from the end of the welding wire

■ Adopt the double-closed-loop system to control arc, arc burns stably

■ Easy to strike arc, small spatter

■ Wide adjustment range of input voltage: 280V—450V

■ Welding cable can be prolonged to 60m

■ All-digital control, performance is reliable and stable

■ I type machine supports synergic adjustment and presetting of current and voltage

■ When a malfunction occurs, the code automatically displays the cause of the malfunction

   Adopting the most advanced IGBT module, big-scale soft switch IC, and all-bridge inverter loop, our IGBT inverter welder is small in size, light in weight, high efficiency, and low no-load consumption, over 1/3 energy saving compared with the traditional welder. It’s the ideal energy-saving welding equipment.With such features as high respond speed, high performance, beautiful seam, high power input capability, small spatter, low noise, easy to operate and move, it is the ideal equipment. It can support such functions as protection from overheat, overcurrent, and over/under-voltage protection, preset of current and voltage.

1. The main loop adopting the all bridge structure (the structure can support the anti-unbalance well), overcurrent protection and primary overcurrent protection fo transformer, the welding machine is endowed with high reliability;

2. Adopting the soft recovery diode as the rectification part, it is easier to recover, lower temperature;

3. Good procedure design, easy to strike arc, arc burns stably and deep penetration;

4. Strong self-compensation capability, a range of 270V-450V

5.Our company's self-developed and produced DSP series IGBT inverter welding machine is a digital inverter welding machine that can be used for DC CO2, DC MAG, pulse MAG welding of carbon steel, stainless steel, aluminum and other materials. This type of model can support welding of different wires from Φ 0.8- Φ 1.6mms. This machine is equipped with welding expert parameters. Users only need to select the welding material and wire diameter, adjust the wire feeding speed through the wire feeding mechanism, and set the welding voltage or arc length to perform normal welding. Automatic protection from phase loss, overheating, overcurrent, and undervoltage, the machine is an ideal welding equipment with high efficiency and energy conservation

Main Features

■ Input: 270V～450

■ Automatic protection from overcurrent, over/undervoltage, overtemprature, phase-lack

■ Digital display of current and voltage

■ Easy to strike arc and arc burns stably

■ Small, light and low noise

■ Support voltage fluctuation of ±20%

■ Welding tractor is multifunctional, marching speed adjustable, different choice in swinging angle, swinging speed and swinging speed, and the center of swing can be preset

Configuration

The configuration of automatic gas-shielded arc machine are as follows

Technical Parameter

1.  Power source

2.Welding Tractor

Implementation Standard

• Safety Standard：GB15579－95
• Technical standard：JBIT8748－98
• Welding standard：APT1104
• Insulation Grade：Class F

Documents

• Packing list
• Qualification Certification
• Instruction Manual
• WarrantyCard

Features:

• Functions are controlled by a DSP chip and can save 30 sets of parameter
• Automatic switch off  in over-current, over/under-voltage, over-heat, phase lacking
• Support fast forward selection on the front panel
• Suport MMA,MIG/MAG and Hi-speed MIG/MAG welding
• Stable pulse welding can be realized with 50A current and Φ1.2mm wire
• Very suitable for mid/thick plate pulse welding with Φ6mm wire
• Can be used with robot to realize automatic welding

1. With such functions as primary current/voltage adjustment, 4T current/voltage adjustment, integral/off

  selection, saving and reading of welding parameter, spot welding set

2. With robot interface and group control interface
3. First in China: Hi-speed DC welding

        Advantages:

A．In bottom welding, the backside of welding seam is also good, the defects can be avoided

        B．Penetration about 20% bigger than the general DC MIG/MAG welding in the big current welding (300A)

        C．Welding speed is 15% higher than the general MIG/MAG welding

        D．In fillet welding, welding meat is flat and smooth, no bulge

• Iron water flows smoothly and is easy to control in covering welding

4. Suitable for sold/flux-cored wire

Comparison of DC MIG/MAG welding and Hi-speed DC MIG/MAG welding

Comparison of Hi-speed DC pulse welding and one-pulse one-drop welding

Parameters

Features:

■DSP digital control with 30 storage channels.

■Automatic protection from over-current, over/under-voltage, overheating, and phase loss

■The panel has a function locking key to ensure consistency of welding parameters.

■Water-cooling type and air-cooling optional 

■Equipped with all the functions of NBM welding machine, as well as AC pulse/AC dual pulse

■When double pulse welding, the shape is beautiful, the fish scale pattern is clear, the strong and weak pulse conversion is crisp, and the arc sounds clearly.

■Heat input is lower than NBM

■Equipped with robot interfaces.

Parameters of power source

Parameter of wire feeder

Questions and Answers

1. Questions: Are you a factory or trading company?
ANSWER: We are welding machine manufacturer with more than 30 years of history. We have our own plant and land and all products are strictly produced with ISO9001:2013,  and equipment, so we can meet both your quantity and quality demands.

2. Questions: how about your MOQ:
ANSWER: Generally if you choose the different products, our minimum order qty. also will be different.

3. QuestionsPayment means:
ANSWER: Actually, payment would be preferred: Normally we choose in T/T and LC

4. Questions: When can I get the products?
ANSWER: Your products will arrive your the nearest domestic port after the order is confirmed, it's about 30 days.

Feature

■ Soft switch technology, DSP all digital control

■ With expert database, can keep 30sets of parameters

■ Automatic protection from over-current, overheat, over/under-voltage

■ Arc burns stably, strong penetration force, big molten pool

■ Support cellulose/low-hydro electrode GTAW welding, TIG welding, flux-cored wire self-protection welding, GMAW

Features:

■DSP all-digital control, with 30 saving channels

■Automatic protection from over-current, over/under-voltage, over-heat, phase lacking

■With function lock-key on the front panel, can guarantee the consistency of welding parameters

■Support hi-speed pulse welding, hi-speed double-pulse welding, vertical upward welding, root welding and cold-arc welding

■Can weld stainless steel, high strength steel, high alloy steel, low alloy steel, carbon steel, various nickel (iron, cobalt) based alloys well

■With robotic interface and group control interface

■DSP all-digital control, with 30 saving channels

■Automatic protection from over-current, over/under-voltage, over-heat, phase lacking

■With fast forward key on the front panel

■Suport MMA, MIG/MAG and Hi-speed MIG/MAG welding

■Stable pulse welding can be realized with 50A current and Φ1.2mm wire

■Very suitable for mid/thick plate pulse welding with Φ1.6mm wire