Resistance Welding Control | Welding Components

Mid Frequency Inverter, Resistance Welding Control

The mid frequency inverter can increase the frequency of a resistance transformer from 50/60Hz to 1000Hz to decrease the weight of its iron core, reduce secondary inductive losses and control energy and operating costs. It can be paired with automatic electrode-holders to form a portable and lightweight welding equipment set with excellent performance.

Features

The amount of splashing is largely decreased for a high quality weld and a clean, safe, and comfortable welding environment
Accurate control of welding parameters in 1 millisecond for the consistent welding results of multilayer steel plate, thick steel plate, high strength steel sheet and aluminum alloy
Basic building blocks of an inverter and in-process monitoring of weld quality and data monitoring
Stable welding control system to prevent weld defects
Three-phase electric power system and medium frequency welding
No capacitance compensation cabinet
Small volume and light weight. Compatible with suspension welders
HMI operator interface for easy operation

Parameter

Model	EX-400	EX-720	EX-1100	EX-1980
Input voltage	Single phase/three phase 220/380V+-15%
Rated frequency	50/60HZ
Transformer voltage	DC500V
Working frequency	1KHZ-8KHZ	1KHZ-4KHZ	1KHZ-2KHZ	1KHZ-2KHZ
Current pattern	00MF/DC
Maximum output current20%	400A	720A	1100A	1980A
Continuous output current100%	120A	230A	400A	630A
Control pattern	KSR/KUR/KST
Current feedback pattern	primary/secondary
Operating display	text/HMI/PC
Data range(group)	7	256	64K	64K
Controlled equipment	Spot Welder/Projection welder/Seam Welder3T/Seam Welder1T/Suspension welder等
Communication station number	43472	1-255	1-255	1-255
Protocol	9600,7，E,1
Communication form	RS485/RS232
Control process	+-1%

Since our establishment in 1999, Darui has been engaged in the design and production of various types of resistance welders, including spot welders, butt welders, seam welders, and more. We have the capabilities to offer you with superior custom service according to your different welding requirements. Our welding machines are widely applied in the manufacturing of home appliances, aviation equipment, electronics, automobiles, furniture, etc. We have earned the trust of customers at home and abroad.