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Jeng Dar Transistor High Frequency Carbon Steel Welder

The Introduction of Transistor High Frequency Welder

  • How it works

  • Video

  • Performance Comparison

  • Specifications

  • Feature of
    JDW-TRA

  • Feature of
    JDW-DCP

  • Feature of
    JDW-OSC

  • Feature of
    JDW-DWC

  • Feature of
    JDW-PLC

The theory of Transistor High Frequency

Carbon Steel Welder The transistor high frequency welding machine adapts the current pattern from A.C → D.C → A.C high frequency. The simple route is three phase power → step-down transformer and power contactor → SCR of high frequency main cabinet. SCR uses three phase and it can adjust the level of output power → rectified D.C voltage → filter → high frequency module board. The module converts single phase high-frequency power and transforms consistent frequency to weld.

 

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Transistor High Frequency Carbon Steel Welder Video

!!Caution: Video with Sound!!

 

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Performance Comparison of
Transistor High Frequency Carbon Steel Welder & Vacuum Tube Welder
(Model and parameter comparison of 100KW high frequency welder)

Type/Parameter
Transistor Welder
Vacuum Tube Welder
Advantages of Transistor Welder

Design specification

D.C voltage:500V
D.C current:200A
D.C power:100KW
Anode voltage:13.5KV
Anode current:12A
Anode Power:162KW
Filament power:2.6KW
Oscillation power:114KW
Output/ Power input

Output Power

>=90KW
<=75KW
 

Cooling Water flow

>= 60L/Min
>=120 L/Min
Water saving 50%

Oscillator Durability

Permanent use
Tube can only last about 5000-8000 hours
 

Preheat Start

No
Yes
 

Welded Quality

Less internal burr
More internal burr
 

Welder Dimension

Compact
Large
Less ground space

Weight

Approx.2100KG
Approx.4200KG
Reducing total weight 50%

H.F. Radiation Low

Low
High
 

Production Cost

Low
High
 

Safety

D.C low voltage, high security
D.C high voltage, low security
 

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Specifications of Transistor High Frequency Carbon Steel Welder

Item No.
Model
Output Capacity
(KW)
Welder Frequency
(KHZ)
Pipe SizeO.D
(M/M)
Pipe Thickness
(M/M)
Welding Speed
(M/Min)
1
JDW-100KW
100KW
300 ~ 400KHZ
9.6 ~ 25.4
0.4~1.0
90~120
2
JDW-150KW
150KW
300 ~ 400KHZ
12.7~38.1
0.5~2.5
80~100
3
JDW-200KW
200KW
300 ~ 400KHZ
19.1~63.5
1.0~3.5
70~90
4
JDW-250KW
250KW
300 ~ 400KHZ
25.4~76.2
1.2~4.0
40~80
5
JDW-300KW
300KW
300 ~ 400KHZ
50.8~114.3
1.5~4.5
30~60
6
JDW-350KW
350KW
300 ~ 400KHZ
60.5~165.2
1.5~5.0
20~60
7
JDW-400KW
400KW
250 ~ 300KHZ
76.2~165.2
2.0~6.0
20~50
8
JDW-450KW
450KW
250 ~ 300KHZ
114.3~219
3.0~8.0
20~40
9
JDW-500KW
500KW
250 ~ 300KHZ
140~273
3.0~10.0
20~30
10
JDW-600KW
600KW
250 ~ 300KHZ
219~325
4.0~12.0
10~30
11
JDW-700KW
700KW
250 ~ 300KHZ
325~525
12.0~16.0
10~20
12
JDW-800KW
800KW
250 ~ 300KHZ
525 or under
16 or under
10~20
Remarks:

-Above transistor high frequency welder’s power can be adjusted specifically according
to international customer’s voltage requirements.

-Above pipe materials parameters (diameter, thickness, welding speed) is for reference only.
The company will implement each individual customer’s specifications of proposed production.

 

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JENG DAR ELECTRIC TECHNOLOGY CO.,LTD   Copyright 2010