Compact power supplies

WELDING Also debuting at the WestPack portion of Canon Communications collocated shows was the GX-series of microprocessor-controlled ultrasonic generators, which reportedly offer more power in a smaller, contoured package. The power supplies are suitable for the manufacturers’ 40- and 20-kHZ welders, with wattage levels of 2200, 1700, 1200, 800, and 400W. All GX units offer automatic frequency tuning where the generator is matched to the stack’s frequency, as well as a horn-frequency display. The GX units are more than 30% smaller than previous models, and processors can weld by digital time, energy, or distance models, as well as a continuous mode. Amplitude settings are automatically saved in job memory, and additional features include calibration pulse prior to weld cycles, an ultrasonic output power meter, digital force triggering, and PLC I/O ports for external job-sequencing requirements. The systems have a back-lit LCD display and a soft-start overload protection circuitry. Sonics & Materials Inc., Newtown, CT, U.S.A.; +1-203-270-4600; www.sonics.com