Sono-Tek Corporation (NASDAQ:SOTK), the leading developer and manufacturer of ultrasonic coating systems, today announced that it has received a purchase order valued at over $3.6 million for an advanced manufacturing production line to be used in the manufacture of medical diagnostic devices. The order is the largest in Sono-Tek’s history for a single integrated production line. Certain previous orders have had a higher total value but included multiple independent systems.

The order was placed by an existing customer that has successfully established and validated its coating process using earlier Sono-Tek platforms. This latest purchase represents a significant expansion in both production capability and overall system complexity, reflecting the customer’s transition from process development to high-volume manufacturing.

The new integrated production line will combine Sono-Tek’s ultrasonic coating technology with complementary process capabilities and advanced automation. The production line is designed to enable the customer to scale its validated coating process to higher volume manufacturing. The system is expected to ship during fiscal year 2028.