PTN20A/PTN40A/PTN80A contravariant resistance welder

PTN series contravariant DC resistance spot welding power source uses the IGBT contravariant technology, the microcomputer control technology and the new type power source of the modern electric power electronic technology development, has the characters such as the high control precision, good welding craft performance, energy-saving and high efficiency, and so on. Specially suitable in spot welding of non-ferrous metal material such as copper, aluminum and so on, and the alloy, as well as the high quality welding of the precise components
DC output
DC welder enhanced the welding thermal efficiency, specially suit in the welding of the non-ferrous metal material and some difficulty welds materia, welding process is stable, welding quality remarkable enhanced.
quick response speed
Electrify timing control cycle <1ms, enhances above 20 times compared to usual welder’s 20ms. Compares with the capacitance storing welder, controllability obvious enhanced, specially suits in welding of the pricised workpiece, and the high quality, high accuracy and high velocity welding.

△ uses the microcomputer to control, guaranteed the coherence of the craft, the multi-groups welding craft parameter’s storage, parameter’s adjustment,and direct-viewing display with welding cycle kneading board, simplified the operation.
△ the three-phase load balance (above DBZ-400 type), the power factor is high.
△ the energy conservation, only the 1/3 of the AC welder’s power consumption
△ the volume is small, the weight is light.Suits in the robot application.

1, controls by the micro controller (MCU), has the function of closed loop feedback constant current output control, the voltage and power monitoring.
2, inverted bridge use the soft switch technology, reduces the switch comsumption, reduces the electromagnetic interference.
3, has malfunction diagnoses and alarming function such as electricity abnormal, the monitoring ultra limits, the net presses ultra limits, superheat and so on
4, inverted bridge electricity abnormal and automatic cutout, enhances the system protection.
5, two section of heating enactment, brings with the function of current ‘s slow ascend and drop, the time width scope establishes (0-999ms), suitable for the requirement of the complex welding process.
6, seven group of parameter storage, facilitates many kinds of welding variety use.
8,160x80 LCD display, simultaneously demonstrates many kinds of contents.
9, stronger exterior communication function: the welding finished, the malfunction, the counting signal, convenient for automatically.welding use.
10,three groups of starting input signal (maximum starting seven groups of welding parameter), the output drives two groups of signals, convenient for the multi-nose use.
11,three phase AC380V inputs, electrical network load balance.
12 data storages uses EEPROM, non-battery life-span question.
13 the maximum output of the controller is the intermediate frequency square-wave AC of peak V alue current, voltage 530V,and the frequency 2KHZ.

Specification type	PTN20A	PTN40A	PTN80A
Rating capability	2000A	4000A	8000A
input voltage	380V/50HZ
Maximum short circuit current	2500A	4600A	9000A
welding ability (stainless steel)	1.0+1.0mm	2.0+2.0mm	3.5 mm
electrode stroke	30mm	30mm	30mm
electrode arm protrude length	200 mm	200mm	500mm
electrode pressure	250N~750N	400N~1200N	600N~2000N
Cooling water flux	6L/min	6L/min	8L/min
Weight	200Kg	250Kg	300Kg