Three-phase dc currrent welders

Description

6101 6103

Main features

  • Direct current three phase welder. In comparison with a traditional welder, it offers the following advantages:
    - High mains power factor.
    - Reduced load on plant primary electrical service.
    - Balanced load distribution on the three phases.
    - Reduced effect of magnetic materials between arms on the welding current.
    - Reduced installation costs.
  • Six-phase silicon rectifier with device for checking the correct diodes clamping force.
  • Protection of the diodes against overload, overvoltages, and overtemperatures.
  • Complex pneumatic cycle with low force squeeze.
  • Cylinder with chrome plated stem for heavy duty works and long life; adjustable anti-rotation device.
  • Adjustable double stroke with key control.
  • Lubrication free pneumatic components to eliminates oil mist and to protect the environment.
  • Head descent without pressure for set up and service.
  • Built-in compressed air filter unit and tank.
  • Compressed air disconnecting device.
  • Electrodes speed control valves, shock absorber for end of stroke and air discharge silencers assuring the minimum noise.
  • Two stage electric foot control for clamping and welding pieces only if correctly positioned.
  • Pre-setting for additional double stage electric foot connection for the direct recalling of welding program no.2 (not on units equipped with option 6132).
  • Water-cooled transformers, plates, electrode-holders and electrodes; transformers with epoxy resin coated windings.
  • Flow switch which makes the welder stop if the cooling water does not circulate.
  • TE553 microprocessor control unit. Phase shift welding current adjustment. Synchronous SCR contactors insulated from cooling water circuit with protection thermostat.
  • Standard on all models: two-hand safety control with timer assuring the best safety, and removable key selector. The two-hand control push-buttons are standard on projection models only (thay are available on request on spot welder model).
  • Emergency push-button to stop the machine immediately.
  • Automatic circuit breaker for protection.
  • Valve to stop the flow of the water cooling when the machine is off.

 

Specifications subject to change without notice.