1159 Series Bearingless AutoSense™ “Long Stroke” Rotating Unions for Coolant and Air Service with CoolControl™ Technology
Single passage for all media
Patented AutoSense technology automatically changes between closed seals and controlled leakage operation in response to type of media
Non-rotating element has “stroke” (axial movement) of up to 13.5 mm, to track drawbar movement even when the union is mounted on the clamping device
CoolControl technology utilizes an air pilot to hold seals closed during axial drawbar movements, thus mimimizing coolant leakage during tool change cycles
Full flow design has no obstructions to trap chips or debris
Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
