Raschig Rings

Quality and consistency. The key to optimal performance.

Wisconsin Stamping & Manufacturing has more than 60 years of experience producting metal Raschig rings for a variety of chemical processing, distillation, and other mass transfer applications.

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.

Companies employ Raschig rings in a wide variety of tasks that require chemical separation, mass transfer, or fractional distillation. 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. 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 materials, 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.

Metal Raschig Rings from Wisconsin Stamping

Wisconsin Stamping & Manufacturing specialize in producing metal Raschig rings in a variety of metals including stainless steel, carbon steel, aluminum, copper, nickel, exotic alloys, and superalloys.

Partnering with us and benefit from:

  • USA made in a state-of-the-art, ISO 9001 certified facility
  • Broad range of in-house manufacturing capabilities
  • Comprehensive quality assurance program

Contact us to learn more about Raschig ring services or to request a quote.

  • Interior Diameter 1/16″ to 3-5/16″
    (1.5mm to 84mm)

  • Outer Diameter 5/64″ to 3-1/2″
    (2mm to 89mm)

  • Length 1/8″ to 9″

  • Wall Thickness .010″ to .156″

  • Steel
  • Stainless Steel
  • Aluminum
  • Copper
  • Nickel
  • Monel
  • Inconel
  • Hastelloy
  • Nickel Alloys
  • Duplex Alloys
  • Other High Performance Metals


  • CO₂ and H₂S selective absorption
  • Air pollution control scrubbers
  • Ammonia absorption
  • FCC absorbers


  • EO/EG
  • Water deaeration and decarbonation
  • Sour water stripper

Heat Transfer

  • DC/AC

Quench Columns

Light Ends Fractionators

  • Demethanizers
  • Deethanizer
  • Absorption in gas processing and combustion plants
  • Liquid/Liquid extraction
  • Petrochemical distillation and extraction applications
  • Desorption in water treatment
  • Ethanol
  • Biodiesel
  • Natural gas processing
  • Spirit distillation

Contact us at 888-236-8838 or solutions@wisconsinstamping.com

Quality and consistency is our focus.