Tack Welding of Sheet Metal Components and Braze Foil Thermal Blanket Repairs Resistance Brazing Seam Mfdc Welding Machine 15ka 20ka 40ka

Basic Info.

Model NO.	UN3-50KVA, UN3-75KVA, UN3-100KVA, UN3-150KVA
Current	Alternating Current
Color	Blue
Application	DC or Cooling Box
Model	Mfdc Series
Transport Package	Angle Iron Frame and Human Made Wooden Sheet Box
Specification	CCC, ISO, UL, CE
Trademark	DuroWelder
Origin	USA and China
HS Code	8515219000
Production Capacity	100sets Per Year

Product Description

Notes in applications

1. The welding works: when in welding, never put your hands, etc between the electrodes, which will be imposed with the pressure of several kgf, and cause the severe injuries.
2. When do the work of inspection, form transformation and the replacement of the electrode heads, the power switch for the control device must be shut off.
3. The internal inspection: when inspecting the interior of the machine, and the control device or replacing the accessories, etc, the welding power and the power switch on the control device must be shut off.
4. The modification of the structure: please do not randomly modify the structure of the machine or alter its sections. When necessary, please contact the sales stores or the representative offices of our company, and the following points should be especially noted:

(1) If the uniform needs to be installed on the welding machine, completely insulate between the uniform and the pole part and the conductors or between the uniform and the shell of the body, otherwise, the welding current will be distributed inside the welding uniform to damage the parts.
(2) Please do not modify the heat relay inside the welding machine or reconstruct.
Notes: if troubles or accidents occur due to the reconstruction by your company, even if within the warranty period, it is difficult to be repaired, therefore, please do not reconstruct and alter the specifications of the machine and the accessories.
5. Maintenance and inspection
Please follow the instruction to maintain and inspect, otherwise, the functions of the welding machine will not only be fully exerted, but also the application life will be greatly reduced.
6. Specification of the protective appliances
When in welding, the splashes (sparks) will be produced, so please wear the protective appliances, such as the protective wears, glasses, gloves and uniforms, etc

model	MF-20	MF-40	MF-80	MF-20
Input voltage	220V/380V +-15%	220V/380V +-15%	220V/380V +-15%	220V/380V +-15%
Input frequency	50HZ	50HZ	50HZ	50HZ
Transformer voltage	DC500V	DC500V	DC500V	DC500V
working frequency	1KHZ-8KHZ	1KHZ-4KHZ	1KHZ-2KHZ	1KHZ-2KHZ
Current form	MF/DC	MF/DC	MF/DC	MF/DC
Maximum output current 20%	400A	720A	1100A	1980A
Continuous output current 100%	120A	230A	400A	630A
Control mode	KSR/KUR/SKT	KSR/KUR/SKT	KSR/KUR/SKT	KSR/KUR/SKT
Current feedback mode	Primary/secondary	Primary/secondary	Primary/secondary	Primary/secondary
Operating display	PC	PC	PC	PC
Data specification (group)	7	256	64K	64K
Communication site number	1-7	1-255	1-255	1-255
Protocol	9600,7,E,1	9600,7,E,1	9600,7,E,1	9600,7,E,1
General format	RS485/RS232	RS485/RS232	RS485/RS232	RS485/RS232
Control progress	+ -1%	+ -1%	+ -1%	+ -1%