State engineering corporation manufactures [seco] various types of wedge hook hydraulic/pneumatic power chucks [2-, 3- and 4-jaw], suitable for cnc, automats, and copying lathes. These come with alloy steel hardened and precision ground chuck body and other components. Seco power chucks have ground serrations, capacity to sustain high production loads and centralised lubrication for jaws. These are supplied in a very large variety such as: close centre, open centre, jaw compensation type, face clamping, etc. Power-chucks are available in 125-315 mm size range.
