• Built-in compressed air filter unit.
• Lubrication free pneumatic components to eliminates oil mist and to protect the environment.
• Chrome plated cylinder and stem for heavy duty works and long life; adjustable anti-rotation device.
• Water-cooled transformer, electrode-holders and electrodes; transformer with epoxy resin coated windings.
• Phase shift welding current adjustment. Synchronous SCR contactor insulated from cooling water circuit with protection thermostat.
• Items 2101D and 2103D: TE550 constant current control unit.
• Item 2102N: TE101 control unit.
• Two stage electric foot control for clamping and welding pieces only if correctly positioned.
• Pre-setting for two-hand safety control with timer for maximum safety, and removable key selector (only on items 2101D and 2103D). The push-buttons are available on request.

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