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High Frequency Solid State Induction Welder
High Frequency Solid State Induction Welder
Solid state high frequency welding pipe equipment's Solid state high frequency welding pipe equipment uses the common structure of frequency conversion such as AC-DC-AC. Three phase 380V power supply is sent to step down transformer before it passes through switch cabinet. The AC power supply is around 200V which has been dropped voltage to sent into the rectifier in rectifier cabinet, Rectifier use thress phase thyristor fully controlled bridge rectifier, through control thyristor breakover time delay angle a to achieve the purpose for adjustment output power size.

The rectified DC voltage is sent to the high frequency invertor before pass through the filter link. high frequency invertor to inverter producing single phase high frequency and being send to resonance circuit. Via the matching of load and the adjusting mechanism output high frequency energy to complete steel pipe welding. The comparison with vacuum tube high frequeny, the main diffrence between vaccume tube welder is it's efficiency SSW efficiency is 85% as campair to vaccum tube welder which is 65% and SSW no oscillator valve i s used solid state welder save electricity consumption because off it's 25% efficiency saving.

welding pipe power supply Vacuum tube high frequency welding pipe equipment has accumulated operation design experience for a long-term, The equipment quality and the operation stability have been accepted by the general welding pipe enterprises. Along with the promoted application of solid state welded pipe equipment, its strong advantage for highly effective energy conservation opened a new path for the intense welded pipe profession competition. The third generation solid state high frequency power supply has many fine performance, there is no doubt it has the competitive advantage compares our company earlier period the second generation solid state high frequency power supply.

NSSW Solid induction HF Welding Unit (HF Welder)

Suitable for continuous production of Longitudinal Welded tube and pipe production lines.

Components of the Equipment : NSSW-Solid State Induction HF Welder composing ofSCR DC Powersupply, HF inverter and water cooling unit(air-water-or water heat exchanger)

Major Parameters :
Power Supply
AC three-phase 380V/420V, 50Hz/60z,75KVA-1500KVA
(Different input voltage and frequency can also be arranged)
Oscillator Frequency : 200 KHz-400KHz
Output Power : 50 KW-1000KW
Cooling Method : Water Cooling



D.C. Power Supply Unit

NSSW - Weding Unit
Nirmal Supplies Latest Welding Unit as per the customer requirement two roll type, three roll type , four roll type and five roll type .

NSSW Inverter Outout Cabinet
Major Specification :
  • Water Cooled Larger power MOSFET has been used to for modularized structure. Solid state transistor is used.
  • Larger capacitors bank C and the induction coil L mounted surrounding the welding tube directly outputs coupling resonant without adapting any matching output transformer.
  • That enables the welder achieving higher output efficiency. The electric energy can be saved up to 30%
  • The Unit adapts compound resonant without higher voltages resulting safe and stable operation of the unit.
  • The component have been used for the control systems were produced by world known manufacturers. The parameters of voltage, current, power and frequency have shown diagnostic capabilities.
  • The seams welded with higher qualities due to the use of multi stage filtering system.
  • Equipped with a special designed coil holder enables the coils are placed in an optimum position for welding for welding.

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