HY120 Technology

Divisions: Industrial resistance welding systems

Power (kVA)	2500 kVA
Secondary Voltage (V)	23 V
Short Circuit Current (kA)	120 kA
Electrode Force	3500 daN

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The HY120 introduce a new hybrid technology, comprehending energy storage and inverter, which propels us into the logic of energy saving towards which the world is evolving. The low energy absorption diluted over time combined with excellent welding quality make this technology suitable for any kind of operating locations, from small workshops to large warehouses of mechanical factories.

Low power absorption from the power line;; the constant energy storage within the capacitors allows to supply welding currents higher than 100kA by connecting the machine to a 32A line, though.
The welding process results free from the quality of the mains the machine is connected to; it is possible to perform welds showing more constant and uniform quality, independently from the mains fluctuations.
Reduction of the operative and maintenance costs; other than the traditional resistance welding system, the HY120 require a much lower line current thus enabling reducing the installed power which is usually required to perform the same job. Also, the welding times result to be shortened, compared to a traditional AC system, thus allowing to decrease the electrodes maintenance frequency and to increase the productivity.
Excellent precision on the current control by means of the double feedback system. The system checks every 500 microseconds whether the requested current actually corresponds to the supplied one. This is done by controlling the current in parallel both on the primary and on the secondary of the welding transformer.
Excellent flexibility and adaptability to the materials to be welded.
Ability to work in “Dynamic mode”. This mode is an ADAPTIVE type inverter working mode which enables the machine to detect anomalous conditions during the welding operation, such as the imperfect contact of the sheets to be welded, presence of impurities between the pieces to be welded and wear of the electrodes. After having identified one or more anomalous conditions, the control unit can dynamically modify the welding process to correct said conditions. The welding process is corrected by extending the welding time up to a max limit defined by the operator. In DYNAMIC MODE, the control unit adjusts the welding current for the purpose of obtaining a correct weld and avoiding, at the same time, the squirting of molten material that could lead to welds of lower classes.
Balanced load on the mains and complete autonomy from the mains frequency. The connection of the machine can be carried out to all of the 3 phases, without creating imbalances. In case an anomaly is found on one of these phases (for instance, the lack of a phase), the welding machine is able to signal it.

Power (kVA)	2500 kVA
Secondary Voltage (V)	23 V
Short Circuit Current (kA)	120 kA
Electrode Force	3500 daN

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