SMW Autoblok has expanded its IR-C power chuck line with specifications that were previously offered by request only. Available with tongue/groove serration, the power chucks range in size from 1,000 to 2,000 mm. The four-jaw chuck's self-centering jaws suit clamping large or irregularly sized parts, while the three- and six-jaw chucks are better suited to larger components. All chucks in the series have a closed center with a manual radial setting for the master jaws. According to the company, the chucks are well-suited to vertical machine applications because of the front protection of the slideways.