Knmtech ultrasonic plastic welding machines are very popular with our customers for their clean, energy-saving, eco-friendly, high efficient, and highly stable features. Knmtech offers four series(Standard, Advanced, Excellent, Servo) of ultrasonic plastic welders(15kHz, 20kHz, 35kHz, and 40kHz), as well as customized automatic welders to meet your joining needs, and we design, develop and manufacture the customized toolings/horns (steel/aluminium/titanium), which is durable and wear resistant.