What is the Pillow Plates?

What is a Pillow Plate? The Professional Definition from a Manufacturer.

A pillow plate is a core component in advanced heat transfer, fabricated through a precise, engineered process. As a factory specializing in this technology for over a decade, here is how we define it:

A pillow plate is created by overlaying two sheets of metal—most commonly stainless steel or titanium. Using a laser welding machine, a pattern of small, sealed circles and a continuous perimeter seal is welded between the sheets, with dedicated inlet and outlet ports left open. High-pressure nitrogen is then injected through these ports. The unwelded areas expand under this pressure, forming precisely contoured channels for fluid flow. This laser-welded, pressurized construction results in a highly efficient, robust pillow plate exchanger.

The key advantage lies in its ultimate flexibility. Every aspect—including overall dimensions, shape, channel layout, and port configuration—is fully customizable. This makes the laser-welded pillow plate heat exchanger an ideal, adaptable solution for virtually any industrial thermal duty, from standard applications to complex, corrosion-resistant environments.

As a leading industrial pillow plate heat exchanger manufacturer, we master this process to deliver durable, high-performance welded heat exchanger cores tailored to your specific system requirements.