Metal Raschig Rings & Pall Rings

Made in USA quality and consistency.

Wisconsin Stamping & Manufacturing has nearly 70 years of experience producing metal Raschig rings and Pall rings used as tower packing in a wide variety of chemical processing, distillation, and other mass transfer applications.  Our USA production facilities eliminate the uncertainties and inconsistencies common with offshore manufacturers and importers.

Overview of Raschig Rings

Raschig rings are tubular metal pieces typically having an equal length and diameter commonly used as random packing materials in chemical processing and mass transfer operations, such as fractional distillation columns, quench towers, gas absorption and stripping, media to support  reactor internals, and other mass transfer applications.  Their surface area and shape create a randomly packed distillation environment that performs better than fractal patterns. They enable good internal liquid distribution, consistency and repeatable efficiency, as well as a high percentage of void space, all while offering exceptional durability and service life. Depending on the material and wall thickness, they also allow for predictable rates of heat transfer for standardized chemical processes.

Raschig rings, especially metal Raschig rings, offer many benefits:

• Low cost. Made from a variety of metals, Raschig rings are easily tailored to applications at low production costs.
• Excellent durability. Raschig rings have long service lives due to superior resistance to caustic chemicals, acids, and solvents. High strength design reduces fouling and stagnation. Additionally, they resist damage from extreme temperatures and physical shock.
• High capacity and separation efficiency. Metal Raschig rings have the additional benefits of high capacity and separation efficiency.