Steel-smith provides cam built-in clamping range automatically compensates for variations in part thickness. The cam action clamps are similar to vertical clamps but the clamping force is generated not by a toggle linkage but by the action of a roller on a cam. The cam action clamps have a high to low limit clamping range that automatically compensates for part thickness variation and therefore eliminates time-consuming readjustments. Generally these cam action clamps are available in three sizes offering part variation thickness allowance from 3 mm to 5 mm. These clamps find its suitable application in fixtures designed for clamping of castings and forgings. Pivot pin, cam and its rollers are hardened for higher efficiency of clamps.
