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  • Triaxial Shear Strength
  • Consolidation
  • Unconfined Compressive Strength
  • Direct Shear Strength
  • Permeability
  • California Bearing Ratio (CBR)
  • Geotextile Testing
  • Proctor Compaction / Classification
  • Soil-Cement
  • Load & Displacement Measurement
  • Load Frames
  • Latex Membranes
  • Porous Stones
  • Data Acquisition Software
  • Sample Preparation
  • Aggregates
  • Asphalt
  • Sieve Analysis
  • About Us
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Menu
  • Triaxial Shear Strength
  • Consolidation
  • Unconfined Compressive Strength
  • Direct Shear Strength
  • Permeability
  • California Bearing Ratio (CBR)
  • Geotextile Testing
  • Proctor Compaction / Classification
  • Soil-Cement
  • Load & Displacement Measurement
  • Load Frames
  • Latex Membranes
  • Porous Stones
  • Data Acquisition Software
  • Sample Preparation
  • Aggregates
  • Asphalt
  • Sieve Analysis
  • About Us
  • Contact us
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    THE KAROL-WARNER STORY

    Anticipating, meeting, and exceeding the needs of customers for more than six decades. That’s why Karol-Warner is a leader in the materials testing industry.

     

    A Long History of Expertise, Innovation, and Customer Service

    In 1953, innovative civil engineers Reuben Karol 
    and Pat Warner recognized the need for better methods and
    machinery to provide more reliable information on soil properties.

    Taking a risk, they left their day jobs to begin the process of
    manufacturing their own soil grouting equipment.
    The inventive duo soon developed a unique apparatus
    for testing soil consolidation. 

     

    1954

    Karol-Warner is born, and the industry is introduced to the CONBEL® Pneumatic Load Frame – the flagship product of the new company.

     

    With a focus on laboratory equipment for geotechnical, soil mechanics, asphalt, and aggregate testing, Karol-Warner pioneered the development of dependable equipment to meet rigorous test requirements and yield accurate results.

     
    Direct Shear Testing

    Direct Shear Testing

    Karol-Warner's First Catalog

    Karol-Warner's First Catalog

    Triaxial Testing

    Triaxial Testing

     
    Karol-Warner Newsletters 1991

    Understanding the needs of our customers has always directed our development efforts, which in turn continues to make a direct and positive impact on the materials testing industry. We also place a high value on our working partnerships with major distributors. These relationships have made the CONBEL® and Karol-Warner names instantly recognizable around the globe.

    (Pictured: 1991 Karol-Warner newsletter) 

     

    An Industry Leader

    From our home base in Lewis Center, Ohio, we design, manufacture, and supply equipment for civil engineering testing laboratories, universities, Departments of Transportation, as well as many other businesses and individual customers worldwide.

    Our state-of-the-art equipment is designed to meet ASTM, AASHTO, and other industry standards where required, thus ensuring compliance with testing specifications. 

     

    Using proprietary methods, we have become the largest producer of high-quality Latex Membranes in numerous combinations of sizes for triaxial and flexible wall permeability soil testing.

     

    Karol-Warner is the sole producer of Neoflex Membranes, a dual-layer product made from pure latex coated in chemical-resistant neoprene. Neoflex Membranes have superior flexibility, toughness, and resistance to abrasion.

     

    Triaxial Testing Equipment

    Triaxial Testing Equipment

    Neoflex Membranes

    Neoflex Membranes

     
    Karol-Warner Customer Service

    Innovative design and quality products have helped us grow, but our ongoing commitment to exceptional customer service strengthens our position in the industry.

     

    The Karol-Warner Philosophy on Customer Service

    We’ve earned our reputation as a leader in the industry by our dedication to solid
    customer service principles:

    1

    Listen to customers – and potential customers – to determine their unique needs.

    2

    Offer high-quality products at competitive prices.

    3

    Apply six decades worth of manufacturing, distribution, and lab/field testing experience toward anticipating and discovering new ways to meet the needs of each customer.

    4

    Build long-term customer relationships.

    5

    Maintain the highest standards for our valued customers.

    6

    Adapt to all changes in our ever-growing industry.

    7

    Combine cutting-edge design and the latest technology with our industry know-how to produce first-rate equipment.

    8

    Guarantee quality design, solid construction, superior performance, and exceptional dependability.

     

    With these core principles guiding our way, our call to action is to ensure
    Karol-Warner stands as a name you can trust…and your first choice for
    materials testing equipment.

    Karol-Warner – proudly providing geotechnical testing equipment since 1954. 

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