Thermal Assembly vs Ultrasonic Welding in Medical Device Manufacturing
Introduction Medical device manufacturers face unique challenges when selecting plastic assembly methods. Every joining process must balance reliability, cleanliness, scalability, cost effectiveness, and regulatory compliance. Choosing the wrong method can increase scrap, reduce throughput, complicate validation, and introduce risks that affect long-term product performance and regulatory confidence. Two of the most widely considered technologies for […]
Heat Sealing a Boat Port

This video features a C-Series Thermal Press configured to hea seal a boat port onto an IV bag, a critical application in medical fluid management where seal integrity and consistency are essential. Port and fitment sealing requires precise control of heat, pressure, and alignment to ensure a reliable, leak-proof bond between the port and flexible […]
Heat Sealing an Impeller Base

This video showcases a standard Dual C-Series machine designed for heat sealing a large impeller base to a bioreactor bag. This type of application is commonly found in biopharmaceutical and single-use process environments, where reliable, repeatable seals are critical to maintaining sterile conditions and product integrity. The Dual C-Series configuration allows for efficient handling of […]
Choosing Between Pneumatic and Servo Actuators for Thermal Assembly
A Practical Guide from Thermal Press International In precision thermal assembly – whether joining, sealing, or staking thermoplastics – actuator choice influences consistency, performance, and validation capabilities. Pneumatic and servo actuation each offer distinct advantages, depending on material characteristics, regulatory expectations, and production goals. Pneumatic actuators remain the industry standard for most applications, providing constant […]
Port Sealer in Action

The Port Sealer Thermal Press shown in this video is engineered to deliver precise, repeatable heat sealing of ports and fitments across a wide range of medical and fluid management applications. The system utilizes interchangeable, precision-machined Delrin nests – visible as the white ring beneath the port – to securely locate and support each component […]
2-Up Boat Port Heat Sealing

This video features a C-Series Thermal Press configured for 2-up boat port heat sealing on medical-grade bags, enabling increased throughput while maintaining precise control. Applications like this require consistent sealing performance across multiple parts within a single cycle, making accurate fixturing and alignment critical. The system utilizes highly specialized tooling designed to securely locate and […]
Heat Sealing an Array of Small Vials

This video highlights a Thermal Press International C-Series machine performing precision foil heat sealing on an array of small vials. The process is designed to deliver accurate, repeatable seals for small-format vial applications where consistency and alignment are critical. In this application, the eight vials are loaded into a custom-designed fixture that supports proper positioning […]
Heat Sealing a Flex Connector

This video showcases Thermal Press International R&D work involving the precision heat sealing of both an LCD and a printed circuit board (PCB) to a flex circuit connector in a single, controlled process. Heat sealing is an effective solution for bonding delicate electronic components where precise alignment, consistent pressure, and controlled heat are required to […]
Built to Last: Refurbishing Legacy Thermal Press Machines
At Thermal Press International, we take pride in designing and manufacturing thermal assembly machines that stand the test of time. For nearly 50 years, our equipment has supported critical manufacturing processes across industries – from medical and automotive to consumer electronics and aerospace. In many cases, a TPI machine (or machines) has helped produce a […]
Boosting Process Reliability with Post Cooling in Thermal Press Equipment
In high-precision plastic assembly applications, process control and repeatability are everything. One feature that often gets overlooked – but can significantly enhance part quality and cycle consistency – is post cooling. At Thermal Press International, our machines include an optional post cooling feature, designed to improve the consistency and durability of thermoplastic assemblies by introducing […]