Established in 1952 Bal-tec Page: 4480
CMM-13, Section 1B

The Abalone

The Abalone (Part #10140) was originally developed as a clamping device for holding the Anchor and Ball Bar (Dumbbell) combinations on the tables of Coordinate Measuring Machines. Since then, it has found wide use for a variety of clamping and work holding tasks on C.M.M.s surface plates and machine tools.

The Abalone is a powerful vacuum hold down device. When used with a good vacuum pump, the five inch diameter (127mm) base will provide over 290 pounds (131kg) of clamping force.

The one and one quarter inch (31.75mm) thick aluminum device weighs only two pounds (.9 kilograms). It is hard coated and the base is precision lapped flat for good mechanical stability, long wear and to form a good vacuum seal that will assure the highest clamping force.


A M10x1.5 threaded hole is provided in the top center of the Abalone to attach the Anchor. For added utility, there are four M10x1.5 drilled and threaded holes around the outer edge of the upper surface. These threaded holes facilitate the rigid mounting of other tooling.

CMM-13 Page 2, the Ball Bar (Dumbbell) Anchor >
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