CMI precision sintered metal column frits with PEEK sealing rings for HPLC UHPLC systems

Column Frits

Precision-engineered sintered metal frits for HPLC, UHPLC, and chromatography columns. Available in UniDense, Dual-Density, and Concave geometries across stainless steel, titanium, and Hastelloy® options to minimize dead volume and maximize peak symmetry.

Category:

High-Precision Porous Metal Frits for HPLC & UHPLC Systems

CMI HPLC / UHPLC Filter & Column Frits are precision-engineered porous metal components designed for analytical instrumentation, chromatography systems, and high-performance liquid chromatography applications.

Manufactured using tightly controlled sintering technology and certified high-purity materials, these frits provide highly uniform pore size distribution, excellent dimensional stability, and consistent flow performance for critical analytical systems.

Available in multiple pore structures, geometries, and alloy options, CMI frits can be customized to optimize flow distribution, reduce dead volume, improve peak symmetry, and enhance overall column efficiency.

OEM designs, customized sealing methods, and application-specific configurations are available for analytical instrument manufacturers and chromatography system integrators.

Key Features & Benefits

✔ Uniform and controlled pore size distribution
✔ High flow consistency and repeatability
✔ Low pressure drop characteristics
✔ Excellent dimensional stability
✔ Reduced dead volume for improved chromatographic performance
✔ High mechanical strength under elevated pressure conditions
✔ Compatible with aggressive solvents and bio-inert applications
✔ Available in stainless steel, titanium, Hastelloy®, and specialty alloys
✔ Optional PEEK, PTFE, or metal sealing configurations
✔ OEM geometries and customized designs available

Available Frit Geometries

UniDense Frit

Traditional uniform-density frit structure providing consistent flow distribution across the entire filtration surface.

  • Standard HPLC/UHPLC systems
  • General analytical filtration
  • Uniform pressure distribution applications

Dual Density Frit

Multi-density pore structure engineered to optimize flow paths and reduce dead volume.

  • Improved flow focusing
  • Reduced peak broadening
  • Enhanced chromatographic efficiency
  • Better pressure distribution

Concave Frit

Concave surface geometry designed to improve fluid distribution and minimize stagnant zones.

  • Enhanced flow uniformity
  • Reduced edge effects
  • Lower dead volume
  • Improved peak symmetry

Standard Specifications

Application Type Available Pore Sizes
Analytical HPLC / UHPLC 0.2 μm, 0.5 μm, 2 μm
Semi-Preparative Applications 2 μm, 5 μm, 10 μm, 20 μm

Custom pore sizes are available upon request.

Materials & Sealing Options

Available Materials

  • 316L Stainless Steel
  • Titanium
  • Hastelloy®
  • Inconel
  • Monel
  • Customized corrosion-resistant alloys

Sealing & Assembly

  • Metal sealing
  • PEEK sealing
  • PTFE sealing
  • Press fit assembly
  • Sinter bonded structures

Typical Applications

  • HPLC systems
  • UHPLC systems
  • Analytical instrumentation
  • Chromatography columns
  • Sample preparation systems
  • Bio-inert flow paths
  • Pharmaceutical analysis
  • Laboratory and research equipment

OEM & Custom Manufacturing

CMI provides OEM and application-specific frit solutions based on customized geometry, pore size, flow characteristics, alloy selection, sealing method, surface finish, and assembly configuration.

Custom dimensions and proprietary designs are available for analytical instrument manufacturers, chromatography system integrators, and laboratory equipment suppliers.

Looking for Customized HPLC / UHPLC Frit Solutions?

CMI provides precision porous metal frits engineered for chromatography systems, analytical instrumentation, and OEM laboratory applications.

📩 Technical Support: sales@cmifiltration.com

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Get a Quote

Our fabrication experts are ready to help you with custom-made filter housing and fabricated metal filter vessel solutions. Contact us with your specific requirements for a customized quote.

Our Services

Comprehensive filtration solutions from design to maintenance and support

Replacement & Cross Reference Solutions

CMI offers replacement and cross reference filtration solutions compatible with major brands, providing reliable performance, cost efficiency, and flexible supply.

Filtration System Integration & Skid Solutions

CMI delivers complete filtration system integration and skid-mounted solutions with piping, valves, and instrumentation, designed for reliable industrial operation and easy installation.

Global Project Delivery & Logistics Coordination

CMI provides global project delivery and logistics coordination services to ensure safe, efficient, and reliable shipment of filtration equipment worldwide.

Filtration Testing & Validation Support

CMI provides filtration testing and validation support to ensure filtration performance, optimize system design, and reduce operational risks.

After-Sales Support & Spare Parts Supply

CMI provides after-sales support and spare parts supply for filtration systems, ensuring reliable operation, reduced downtime, and long-term system performance.

Custom Engineering & OEM Fabrication

Custom engineering and OEM fabrication services for industrial filtration equipment, including filter housings, pressure vessels, and non-standard filtration systems.