DESCRIPTION
Seam welder
We make machines according to your requirements; please send us your needÂ
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, 380â4150V; 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"'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.
Â
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, 380â420V, 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.