气缸内置，驱动力通过斜楔机构传递。工作稳定可靠。在加工期间，卡盘通过双作用单向阀保持压力。只有在主轴停止时，压缩空气才能通过配气盘和配气圈供给。

Chuck with built-in cylinder, driving force is transmitted through the wedge mechanism. It is stable and reliable in work. Built in double non-return valves maintain the air pressure during machining. The compressed air feed via distributor ring and profile seals only when the spindle completely stops.

配气盘的安装和定心调整通过固定于主轴箱端面的配气盘支架实现，保证与旋转的卡盘不存在任何接触。

The stationary distributor ring must be mounted so that no contact exist against the rotating power chuck. The distributor ring is centered and laterally mounted by means of a bracket fixed to the headstock of the lathe.

用于直管或弯管的端头加工，可以自定心夹紧直管，当管端弯曲时与可伸缩尾座上的定心卡盘配合采用卡爪浮动夹紧。仅适用外圆夹紧。

End machining straight or bent tubes. Tube can be self-centering clamped or with radial jaw compensation at bent tubes by means of a retractable centering chuck fixed on the tailstock. The chuck only used for external clamping.