TECNA 6012 Pneumatic MFDC Rocker Arm Spot Welder

The TECNA 6012 is a 25 kVA air-operated MFDC rocker arm spot welder uses inverter technology. Inverters offer advantages over single-phase AC, including greater welding quality and precision, more efficient use of electricity, smaller size, and less electrical loss due to impedance (power savings). These benefits have encouraged Automotive manufacturers to become a major user of inverter technology.

The main advantages of a TECNA 6012 MFDC system over a traditional AC system are:

• Excellent precision on the current control. In fact, the system checks the current every 500 microseconds.
• Reduction of operating and maintenance costs. In order to obtain the same welding results, a traditional AC system would require a higher installed power and a higher current withdrawn from the mains. Moreover, thanks to reduced welding times, the service to the electrodes is reduced, hence a higher productivity.
• Compared to AC welder, the medium frequency system also produces a more efficient heat supply and it allows to obtain the same welding results with shorter time reducing the heat dispersed around the welding nugget (HAZ heat affected zone) and avoiding to alter the material features.
• A balanced mains load and a total independence from the mains frequency if compared with AC welders.
• It always keeps constant the welding current even in presence of changes in the mains voltage, in impedance of the secondary circuit, in the conditions of the welding tools and in the superficial conditions of the material to be welded.