Vehicle Accessories, Electronics, & Tools

Automotive Resistance Spot Welder Portable aluminum Spot Welding Machine

SKU: 1600583937687
Category: Vehicle Accessories, Electronics, & Tools

R223,825

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Section:: Sports & Entertainment
Category:: Vehicle Accessories, Electronics, & Tools
SKU:: 1600583937687

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22 Dec, 2026

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Product Description

Product Description

Medium frequency inverter spot projection welding machine is a set of advanced welding equipment. Widely used, welding transformers have a small volume and large output energy. The advantages of portable spot welding machines used in the automotive industry are even more evident. Its superior performance is due to the increase in the frequency of its welding transformer from 50/60Hz to 1000Hz, which greatly reduces the weight of the iron core material. In addition, the rectifier diode in the secondary circuit of the transformer converts electrical energy into DC power for welding. This can greatly improve the value of the secondary circuit inductance coefficient, which is an important factor leading to energy loss and can almost be ignored in DC welding circuits, thereby minimizing production costs.

Main Features

Compared with ordinary AC resistance welding machines, it has the following advantages:

1. Energy saving: Compared to using low frequency, it can reduce the consumption of electric energy. A transformer with the same weight can output more energy, which can be easily used with large automatic welding tongs. Suitable for welding thick workpieces and highly conductive metals. Such as aluminum and all galvanized steel plates. Generally speaking, small and lightweight systems can accelerate movement and shorten work cycles, making them the best matching solution for welding machines/robots.

2. Improve power factor and reduce production costs.

3. Interference can be reduced in the secondary circuit with a large opening area: the welding current is DC, and when there is inductive/magnetic material in the secondary winding, it will not affect welding.4. Balance the load of power supply equipment: The intermediate frequency inverter spot projection welding machine uses three-phase power supply and can store energy.5. Greater adaptability to grid fluctuations and voltage drops: A portion of energy is stored by the inverter and then fed to the load, replacing the method of directly supplying power to the load from the grid.6. More accurate and fast current control: More and more accurate analysis of parameters compared to low-frequency systems.7.Faster reaching the set current: The intermediate frequency can adjust the welding current 20 times faster than traditional technology.8. More reliable process: DC welding is better for most metals that apply resistance welding.9. Intermediate frequency systems are generally more reliable than traditional technologies and can avoid some damage that can lead to damage to thyristor based systems.10. Reduce operating costs, including saving welding energy at each point and shortening the welding cycle.

Technical Parameters

Item/Models	DN2-60X	DN2-60C	DN2-80X	DN2-80C	DN2-100X	DN2-100C
Power at 50% (KVA)	60	60	80	80	100	100
Maximum short circuit current (KA)	10	10	12	12	14	14
Secondary unload voltage (V)	8.9	8.9	8.9	8.9	8.9	8.9
Voltage at 50Hz/60Hz (V)	3φ380	3φ380	3φ380	3φ380	3φ380	3φ380
Distance between the arms (mm)	120-280	100-300	120-280	100-300	120-280	100-300
Max. strength at electrodes (N)	3500	3500	3500	3500	3500	3500
Working stroke (mm)	15-45	15-25	15-45	15-25	15-45	15-25
Max. stroke (mm)	50-120	60/100/140	50-120	60/100/140	50-120	60/100/140
Arm length (mm)	240-500	200-500	240-600	200-500	240-600	200-500
Compressed air supply (MPa)	0.5	0.5	0.5	0.5	0.5	0.5
Max.thickness of mild steel sheet with min. length s arm (mm)	3+3	3+3	4+4	4 +4	5+5	5+5
Max Welding thickness With 500mm arms (mm)	2+2	2+2	3+3	3+3	3+3	3+3
With maximum length arms (mm)	1.2+2	1.2+1.2	2+2	1.8+1.8	2.0+2.0	2.0+2.0
Cross wire maximum (mm)	14+14	14+14	16+16	16+16	20+20	20+20
Cooling water pressure drop (MPa)	0.05	0.05	0.05	0.05	0.05	0.05
Cooling water flow (L/min)	8	8	8	8	8	8

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Use & Installation

Frequently Asked Questions

What is the main advantage of using a portable aluminum spot welding machine?

The main advantage is its energy efficiency and ability to weld thick workpieces and highly conductive metals, such as aluminum and galvanized steel, while being lightweight and portable for ease of use.

How does this spot welder improve energy efficiency?

This spot welder uses a medium frequency inverter that increases the frequency of the welding transformer, allowing for greater energy output while reducing electric energy consumption compared to low-frequency systems.

Can this machine weld aluminum?

Yes, the automotive resistance spot welder is designed to effectively weld aluminum and other highly conductive metals.

What is the maximum welding thickness for mild steel?

The maximum welding thickness for mild steel can reach up to 5 mm, depending on the arm length used.

What features enhance the reliability of this welding machine?

The machine uses DC welding, which is more reliable for most metals, and has a more accurate current control system that can adjust the welding current faster than traditional methods.

Is this spot welder suitable for robotic applications?

Yes, the lightweight design and fast operational cycles make it an ideal match for robotic welding applications.

What power supply does this machine require?

The machine requires a three-phase power supply at 380V, suitable for industrial environments.

How fast can the machine reach the set welding current?

The intermediate frequency technology allows the machine to reach the set welding current up to 20 times faster than traditional systems.

What is the purpose of the rectifier diode in the machine?

The rectifier diode converts AC electrical energy into DC power for welding, which minimizes energy loss and enhances the efficiency of the welding process.

What is the cooling water flow requirement for this machine?

The cooling water flow requirement is 8 liters per minute to maintain optimal operating temperatures.

What are the dimensions of the arms used in this spot welder?

The arm lengths vary from 200 mm to 600 mm, depending on the specific model, allowing for versatility in welding different thicknesses and materials.

Can the machine handle voltage fluctuations?

Yes, the machine is designed to be adaptable to grid fluctuations and voltage drops, storing energy in the inverter for reliable operation.

What is the maximum short circuit current this machine can handle?

The maximum short circuit current varies by model, ranging from 10 KA to 14 KA, depending on the specific configuration.

What is the working stroke of this welding machine?

The working stroke ranges from 15 mm to 45 mm, depending on the model, allowing for flexibility in welding applications.

How does this machine reduce production costs?

By improving energy efficiency, reducing cycle times, and optimizing the welding process, the machine helps lower overall production costs.