Mf160 160kVA Medium Frequency Transformer for Automotive Resistance Spot Welder

Product Description

 

 

Product Description

MF160KVA MF6160 Transformer Resistance Welding Transformer forWelding Machine

( Price are for reference only, please consult the salesperson for specific prices )

Product Description

Brief introduction 

Medium-frequency (MF) transformers are a result of recent advances in resistance welding technology. 

They arepowered by a transistor inverter, supplying square wave AC 500 V @ 1000 Hz which is converted by the MF transformer to a low voltage high current AC.

This low voltage AC current is rectified to DC by a diode block built into the transformer.

The higher operating frequency of an MF system allows efficient energy conversion using a smaller and lighter transformer.

Other benefits with MF transformers used in portable and robotic welding guns are:

The reactance of the welding loop only limits the upslope and down slope of the welding current.

While the peak welding current in limited only by the welding loop's resistance. 

The net result is again smaller transformer, especially when welding with large throat, high-impedance guns.

MF welding is less demanding on the plant power system.

The MF inverter draws balanced line current from all 3 phases and operates at a high power factor (0.9).

With MF transformers the peak welding current almost equals its RMS value, which helps to obtain quality welds with no splash and constantstrength even at lower pressure.

The high frequency permits much faster - 1000 times per second - process control, which again results in better weld quality.
 

Application 

For all kinds of intermediate frequency, power frequency 

resistance welding machine.Such as automobile welding clamp,

seam welding machine, mesh welding machine and so on.

 

Product Parameters

 

 

Technical parameter
TYPE							MF6160
Primary nominal voltage						V	500
Frequency						Hz	1000
Nominal power at 20%ED						kVA	170
Nominal power at 50%ED						kVA	105
Nominal power at 100%ED						kVA	75
Secondary  voltage						V	9
Permanent DC current 100%						A	8500
Short circuit current						KA	38
Turns ratio						N1 / N2	55:1
Weight						kg	20
Temperatur switch							2 x 150 °C, 1 x 70 °C  Temperature switch
Insulation class							F (155 °C)
Current measuring coil							150mV/KA ±3%
Size						mm	171.5X127X295
Cooling water < 30°C						L/ min	8
Pressure drop						Mpa	<0.2

Load diagram



Drawing


 

 

Certifications

CE certificate

Company Certificate





 

Factory environment display