Attached to the front of the quick change cap, the seal blank can be cut to suit the size of bar required. The seal then reduces the potential for swarf and coolant to go down the spindle.
Kitagawa chucks are manufactured from high grade alloy steel. The Kitagawa PU series are an economic pull lock chucks for external gripping for heavy cut machining, while giving excellent accuracy and repeatability.
Click on link below for Amada Brochure with specifications:
https://www.amada.com/america/brochures/general-fabrication/ID40IV-HP-
NT/html5/index.html?&locale=ENG