Precise welder The ElectroPress ultrasonic welder has a stepper motor transport that controls the advancing speed and final position of the ultrasonic horn. This new design is said to allow positioning of the welding horn to tolerances of ±0.0003 in. through a range of velocities, versus ±0.005 in. for pneumatic welders.
The manufacturer's FM Power Supply and linear feedback encoder make these accuracies possible. The welder is most appropriate for applications that require precise final dimensions or exceptional repeatability, such as those found in the medical and electronics industries.
Other features include a rigid-mount ultrasonic booster design, which is said to eliminate springs, O-rings and other flexible components that can cause displacement errors. The press is available with the manufacturer's 20 and 40 kHz power supplies.
Unit is supplied with a software interface package that allows programming of velocity, depth and force. An optional PC displays power versus time graph and collects data for output and analysis in text format. Users can supply their own PC, as well. Prices range between $27,500 and $30,000.
Low-frequency welder Model 1595 15 kHz ultrasonic welding system is designed to join large parts, as well as parts made of high-performance engineering thermoplastics and some polyolefins. It is available in 2500- and 4000-watt configurations. Prices start at $19,500.
