MTK-8502

   Capacitor discharge welding machine. Designed for capacitor stored-energy resistance spot welding of large-size parts made of light alloys, titanium, stainless and high temperature steels.

 

Functional features and advantages:

 

  • Provides high stability of operating parameters and quality of welded joints;
  • Enhanced welding current stabilization by changes in supply voltage.
  • Discrete control of complicated welding cycles.
  • Adopt pneumatic parts by SMC firm (Japan) providing high accuracy and reliability of operation;
  • Adopt special sensor of welding current in a secondary circuit which allows to control value of actual welding current delivered to the weld on each pulse;
  • Multy-function microprocessor based control system with the sensor LCD monitor;
  • Convenient programming of welding parameters in physical units of measurement;        
  • Monitoring and diagnostics of key parameters of a welding cycle;
  • Storage in a non-volatile memory up to 500 welding schedules;
  • Overload current protection;
  • Monitoring of water circulation through machine elements critical to overheating;
  • Pass-word protection from un-authorized change of welding parameters;
  • Programmable limits of welding current and electrode pressure, which assure on-line quality control;
  • Registration and recording of the following parameters during each weld:
  • welding schedule;
  • welding execution: date and time;
  • values of welding current;
  • welding and forging forces, etc.

Parameter

Value

Supply voltage, 50Hz, V

380

Rated Power, kVA

70

Power with duty cycle = 50%

40

Type of welding current

 

capacitor discharge

Maximum secondary current, kA

 

85

Rated continuous secondary current, kA

16

Capacitance of capacitors bank, µF

39200

Maximum electrode force  daN

5180

Throat depth, mm

1500

Electrode gap, mm

500

Maximum charging voltage, V

950

Thickness range, mm:

 

 

                                                                  

stainless steels

from 0.3 + 0.3 to 2.0 + 2.0

 

aluminium and  titanium alloys          

from 0.5 + 0.5 to 2.5 + 2.5

Cooling water consumption, l/hr

1500

Overall dimensions, mm:

 

 

machine

3700 х 1500 х 2800

 

control cabinet

715 х 400 х 1700

 

capacitor cabinet

900 х 600 х 1700

Net weight, kg:

 

 

machine

6900

 

control cabinet

100

 

capacitor cabinet

1000