Makers of Fine Custom

Radial Shaft Seals &

Precision Custom Molded Products.

No job too small.

No challenge too big.

No project too demanding.


Fill out the Order Form to submit your specifications, review our Sales Terms & Conditions, and email your order or inquiry to

Facility & Equipment

We custom-design and manufacture ALL Cooper Products, as well as our own tooling, at our 33,000-square-foot facility in Laconia, New Hampshire, USA. In 2012, we invested millions of dollars toward a major expansion project that more than doubled the size of the building, widening our capabilities to serve you better. Cooper Products shares a 5,000-square-foot comprehensive Technology Center with a sister company,  Kaco in North Carolina, housing state-of-the-art equipment for specialized compound development and testing, product design and testing, and sample and pilot production.

Manufacturing and Development Capabilities 

    • 100-ton to 250-ton presses

    • 500-ton press
    • 12-inch to 24-inch platens
    • Compression, transfer, flashless transfer

    • 35-ton presses with flattening capability

    • 12-ton press
    • 7 approved specialty stamping suppliers

    • In-house tool design, fabrication, and maintenance
    • Seal validation testing

Seal Testing Capabilities

Most of our test fixtures are designed and built in-house. Test equipment and capabilities include:


    • Muddy Water - 1/2 Shaft
    • Muddy Water - Spray
    • Low Temperature Start Tests - (-40°)
    • Dynamic Torque Measurement
    • Thermal Shock—Ice Bath Plunge
    • Life Test
    • Elevated Temperature Life Test
    • Lip Inversion Test At Assembly
    • Air Leak Test
    • Instron – Tensile Tester
    • FTIR – Fourier Transform Infrared Spectrophotometer
    • Mixer – 5.5L Shaw K-1
    • RPA 2000 – Rubber Processability Analyzer

If you are looking for custom radial solutions for your bearings, you've come to the right place.  Cooper Products develop the highest-quality radial shaft seals for even your most unusual and challenging designs and applications - all made to order in the United States for your special needs.

* ISO/TS 16949:2009 certification

210 Fair Street
Laconia NH 03246 USA
PH: (603) 524-3367
FX: (603) 524-4620

Cooper Products sealing solutions protect more than bearings, equipment, and processes. They protect your reputation.

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Terms and Conditions of Purchase

Terms and Conditions of Sale


Cooper Products Brochure