Mf85 85kVA Intermediate Frequency Transformer for DC Resistance Welder

Product Description

 

 

Product Description

MF85 85KVA Intermediate Frequency Transformer for DC Resistance Welder

( 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

 

Model	DB6-85(ITS85-600-180)
Wiring method	ITS85R-600-180AU
Controller power supply	380(400) (3-50Hz)
50% (100%) of nominal power	85(60)
Primary rated voltage	570 (600) (1~1800Hz)
Primary no-load voltage	13.0(13.6)
Turns ratio	44
Maximum short-circuit current	16000
Continuous output current	4639
Insulation class	F
Protection level	IP20
Cooling water rated flow rate (transformer)	2×4 (P=0.05MPa)    L/min mpa
Maximum air pressure	0.5
Weight (transformer)	13.5kg

 

Detailed Photos

 

Certifications

CE certificate

Company Certificate





 

Factory environment display