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6.2 Water-cooled welding torch
Thermodynamic equilibrium is set up between the welding torch and the cooling system. The heat
absorbed by the torch head (depending on welding current) is transported by the cooling liquid
to the cooler. In case of cooler malfunction or blockage overheating may occur and deteriorate
the welding torch. The maximum permissible welding currents given on the “technical data” page
are applicable under the following conditions: Direct coupling via the supply line to the cooling
system. Welding torch length of 4m. An efficient cooling system with clean cooling fins and filters.
Ambient temperature of 20°C (68°F).
Check the filling level of the cooling system and replenish the coolant as necessary. Check the
cooling circuits for leaks regularly.
Always prevent coolant liquid from entering the wire guide. Water leaking can adversely affect the
quality of welding.
Parameters for water-cooled manual or robotic
welding torches according to EN 60974-7.
Minimum water flow rate:
1, 1 l/min
Pump pressure:
2, 5 – 6 bar
Cooling power:
800W
Содержание EXTEVOMT1504
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