Sigma is the leading manufacturer of plasma treaters for high speed vacuum metallizng applications.  Sigma treaters are in operation world wide servicing film, paper and fabric treatment applications. 

A very high intensity plasma is developed in the reactor that together with various gas plasma chemistries can produce surface energies in excess of 60dyn/cm at web speeds in excess of 1000m/min.

KEY DESIGN PARAMETERS

• Hollow Cathode, Resonant Cavity Design
• High Power Ceramic Magnet Assist, Focused on the Film Surface
• High Power
• Reactor Operates at a Frequency that Maximizes Film Treatment
• Uniform Gas Pressure in the Reactor Volume
• A Plasma as Mixture Designed for High Plasma Efficiency and Surface Functionalization
• 100% Ground - External Surface Construction.  The plasma is limited to the reactor volume, to maximize power transfer to the plasma volume and to prevent degradation of polymer components in the chamber, electrical shorts, and interference with other equipment.
• Quick One-step Loading of the Film Through the Reactor
• Stainless Steel, Water-cooled Construction
• Electronic Controls for Gas Flow
• Cross-sections as Small as 2.5" X 2.5"
• Web Widths 16 Feet or Higher
• Custom  Reactors Can Be Designed to Meet Specific Customer requirements