• 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.
• Double-stroke cylinder with key control.
• Built-in compressed air filter unit.
• Compressed air disconnecting device.
• Water-cooled transformer, plates, electrode-holders and electrodes.
• Transformer with epoxy resin coated windings.
• 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.
• TE550 costant current control unit.
• Synchronous SCR contactor 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 models).
• Emergency push-button to stop the machine immediately.

Options

• 8030 – Valve to stop the flow of the water cooling when the machine is off and flow switch which makes the welder stop if the cooling water does not circulate.
• 8031 – Longer arms length for item 8005D (L=500 D=380).
• 8032 – Longer arms length for item 8007D (L=550 D=420).
• 8033 – Double stroke control device with pneumatic foot instead of key one. To be used only for spot welding when the work necessarily requires it.
• 8037 – Proportional valve.
• 8042 – Rotary selector for the welding program recalling.
• 8043 – head descent without pressure
• Costant energy welding control unit.