The FSW Fork head 
incorporates the finest technologies produced by Cytec. 
Besides the powerful 42kW Cytec motor spindle with an HSK-A 100 tool-interface, the CyWeld is equipped with 6 spherical arranged shear force transducers.
These sensors are used to detect the radial and axial forces during the welding process in TCP derection. 

The FSW Motor Spindle
FSW robot spindles for friction stir welding and milling with articulated arm or parallel kinematics robots

Characteristics :
• HSK tool interface with hydromechanical Cytwist tool clamping system
• CyTorque motor (combinable with all common control systems)
• Pre-loaded hybrid bearing
• Shear force transducers to regulated forces during the welding process
• Rotary feedthrough for clamping and release hyrdaulics