• Microprocessor welding control unit with welding current direct reading.
• Cylinder with chrome plated stem for heavy duty works and long life; adjustable anti-rotation device.
• Lubrication free pneumatic components to eliminates oil mist and to protect the environment.
• Built-in filter assembly with compressed air regulation device. 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 2° welding program.
• Water-cooled transformer, plates, electrode-holders and electrodes; transformer with epoxy resin coated windings.
• Synchronous SCR contactor insulated from the cooling water circuit with protection thermostat.
• Standard on models 2121D/2144D: two-hand safety control with timer assuring the best safety, and removable key selector, (excluding item 2102N). The two- hand control device is standard on projection models only (they are available on request on spot welder models).
• Welders item 2101D/2103D/2144D are pre-set for two-hand safety control connection.
