The newest family of clamps – Models 8021, 8071, and 8101 – fully enclosed, pneumatic hold-down clamps created to withstand dirty workholding environments. 
    
Designed with applications such as spot or MIG welding in mind, all models feature an enclosed, protected cylinder rod and linkage, as well as a lower and narrower mounting profile.  The enclosed, lubed-for-life linkage means low maintenance and extended clamp life, and the non pivoting cylinder can be hard piped into fixtures.   

Holding capacities for these clamps range from 390 to 700 lbs.  The clamps are designed to withstand a maximum intermittent temperature rating of 250 degrees Fahrenheit, and come with a magnetic ring for sensing switches as a standard feature.