Spot Welders/Welding

(History / Definition / Principle of Spot Welders / Welding)

History: Spot welding was introduced by Elihu Thomson in 1877 and came into use in the period 1900-1905. Since 1933, resistance spot welding has been applied in a large industrial scale for the manufacturing of household appliance, electrical contacts, relays, lamp fixings and also in car body production. Definition: Spot welding is a resistance welding process in which overlapped sheets are joined by squeezing together in electrodes which provide necessary heat for fusion by conducting an electric current to produce localized heat and force to join fused metal. Principle: Spot welding works on principle of Joule E=IR2 (E= Energy, I= Current, R= Resistance) a low volt high current is passed through work which heats the work that is clamped firmly between copper electrodes, Where sheets are met to each other (R) is much more than other contacts, Hence much heat is produced inside work and it fuses work from inside, after a pre determined time current is stopped then fused metal solidifies and a proper joint build up under pressure of electrodes.

Spot welder are useful for kitchen accessories & auto parts

Technical 
Specifications:
Item Unit LX10
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 15
Thoat Depth  mm 280 ~ 330
Thoat Clearance mm 190
Output Current A 3800
Clamping Force Kgf  128
Weight Kg 230
Key Feature:-
Thyristor control power adjustment with electronic timer.
Technical
Specifications:
Item Unit LX15
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 20
Thoat Depth  mm 280 ~ 330
Thoat Clearance mm 190
Output Current A 4500
Clamping Force Kgf  128
Weight Kg 280
Key Feature:-
Thyristor control power adjustment with electronic timer.
Technical 
Specifications:
Item Unit LX30
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 30
Thoat Depth 
mm
280 ~ 330
Thoat Clearance mm 250
Output Current A 5600
Clamping Force Kgf  128
Weight Kg 320
Key Feature:- Thyristor control power adjustment with electronic timer.
 
Technical 
Specifications:
Item Unit LXI15
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 15
Thoat Depth  mm 350 ~ 400
Thoat Clearance mm 210
Output Current A 3800
Clamping Force Kgf  232
Weight Kg 250
Key Feature:-
Pneumatic opretered, synchronous step less current control by thyristors and synchronous timers.
 
 

 

Technical 
Specifications:
Item Unit LXI30
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 20
Thoat Depth  mm 350 ~ 400
Thoat Clearance mm 250
Output Current A 4500
Clamping Force Kgf  232
Weight Kg 300
Key Feature:-
Pneumatic opretered, synchronous step less current control by thyristors and synchronous timers.
 
 
 

 

Technical 
Specifications:
Item Unit LXP30
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 30
Thoat Depth  mm 350 ~ 400
Thoat Clearance mm 250
Output Current A 4500
Clamping Force Kgf  232
Weight Kg 300
Key Feature:-
Pneumatic opretered, synchronous step less current control by thyristors and synchronous timers.
 
 
 
 

 

Technical 
Specifications:
Item Unit LXR20
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 20
Thoat Depth  mm 350 ~ 400
Thoat Clearance mm 230
Output Current A 4000
Clamping Force Kgf  232
Weight Kg 250
Key Feature:-
Pneumatic opretered, synchronous step less current control by thyristors and synchronous timers.

 

Technical 
Specifications:
Item Unit HT 15
Supply V 415± 10%
Phase Ph 2
Frequency Hz 50
Load KVA 15
Thoat Depth  mm 350
Thoat Clearance mm 190
Output Current A 4500
Clamping Force Kgf  128
Weight Kg 280
Key Feature:-
Pneumatic opretered, synchronous step less current control by thyristors and synchronous timers.

 

Comparison:
Item Unit LX10 LX15 LX30 LXI15 LXI30  
Supply V 415± 10% 415± 10% 415± 10% 415± 10% 415± 10%  
Phase Ph 2 2 2 2 2  
Frequency Hz 50 50 50 50 50  
Load KVA 15 20 30 15 20  
Thoat Depth  mm 280 ~ 330 280 ~ 330 280 ~ 330 350 ~ 400 350 ~ 400  
Thoat Clearance mm 190 190 250 250 250  
Output Currentt A 3800 4500 5600 3800 4500  
Weight Kgf  128  128  128  232  232  
Weight Kg 230 280 320 250 300  
 
 

Keywords : Spot Welding Machine / Resistance Welding Machine

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