Seam welder

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General information for seam welder

MF-FN-170KVA Middle Frequency Inverter DC Rolling Seam

Welding Machine

We recommend the MF-FN-170KVA For Welding the Drum with

Following Specifications:

1. Drum inner diameter from 250 mm to 700 mm

2. Drum height: from 30 cm to 1 meter

3. For small drums in the range of 30L capacity steel thickness of 0.5mm to 0.6 mm,

inner diameter 300mm

4. For big drums in the range of 220L capacity steel thickness 0.7mm to 1.5mm,

inner diameter 580mm

5. Power supply: 3 phase, 50 HZ, 380–4150V; recommended only 3 phase. The

welding transformer should be on base 3 phases. Our electricity is 3 phase,

380V, 50 Hz.

Main Application and Characteristics of DC 3-PhaseThe  Welding

Transformer

1. Resistance Welding is one kind of welding technology that melts metal

material by the resistance heating energy which is generated by the welding

current passing the workpiece itself.Therefore, by increasing or adjusting the

welding current frequency, it can change and improve the welding quality.

Just based on this theory, we developed the Middle-Frequency Inverter DC

The Welding Machine's welding current frequency increased to 1000 Hz from

common 50HZ or 60HZ.

The controlling time precision is much higher, and the power factor is more than

98%, without eddy current electromagnetic induction interference, the welding

quality is also improved a lot.

2. While not for all the workpieces, the current optimum value is all the same as

1000 Hz, some need a considerable welding frequency, others need less, just because

For this reason, based on the Middle-Frequency Welding Technology, we also

develop VF Series Variable Frequency Welding Machine, which is a welding

frequency is adjustable.

The principle is that by the added IGBT pulse width is adjustable.

Controller&quot's and the output voltage of V and transformer turns N all adjustable

" transformer to fulfill the function of adjustable frequency.

3. However, these two kinds of welding methods can not be adjusted.

the current value of each welding automatically according to the subtle changes

of workpiece.

To meet much higher requests for welding quality, such as for the

automotive, aircraft, and other high-end products, we develop one kind of

"Dynamic Resistance Principle Auto Self Adaptive Control System."It can

install to both MF and VF welders; this way, they can adjust the welding

current automatically bases different products.

This system is based on the constant current mode control technique,

according to the workpiece thickness, different dirt surfaces of the workpiece,

the corrosion degree, current shunt, and the operator's difference

factors, such as the subtle changes and solder joints, it can automatically

adjust the welding current during the welding process of each welding

spot, ensure the consistency of the welding quality and effect.

4. Middle Frequency and Variable Frequency Welders are both powered by

three-phase power, compared to the traditional AC welder two-phase power

supply, will not cause the fluctuation of power supply, and can adapt suddenly

lifting voltage strongly. The current output is also more accurate, more stable,

more energy-saving and more efficient.

5. higher technology is especially suitable for welding higher

conductive material rates, such as aluminium, copper, silver, etc. Also

good at welding much thicker workpieces, automobiles, aerospace, and

other high-request products and industries.

Technical Parameters of a 3-Phase Transformer

Parameter/Model MF-170KVA

Rated Voltage: 3-Phase, AC, 380–420V, 50/60HZ.

Rated Capacity: 170 KVA

Rated Duty Cycle: 50%

Max Welding Current: 40500A

Electrode Stroke 100MM

Welding Arm Spacing 320MM

Air Source Pressure: 0.6 MPa

Cooling Water Flow: 45L/Minute

Part Number/SKU: EBseamwelder

* Product Images are for illustration purposes only, unless otherwise specified colour may be different.