SD41,SD42 series cotton spinning spindle can keep the great advantage of ZD41,ZD42 series In the meantime, there is an improvement in the winding yarn unit. The new unit will contribute to piece up. The efficiency is greatly raised, and the intensity of labor is decreased. 
 
Steel wharve Min. wharve dia. 18.5mm for saving power.
Aluminium spindle is easy to load and unload the bobbin. Max. Operation speed : 20000r/min.
With position step under bolster flange, spindle house and bearing rail hole are coordinated installation, without correcting the center of the spindle. Integral steel bolster, keeping clean of lubrication oil.
Buffer element in lengthwise in the insert for absorbing and preventing shock.  Suitable to ring spinning frame of group doffer.
Unique technology for combining elastic tube with spindle bearing chuck, being in line between neck bearing and footstep bearing in the spindle house.

Kinds and specifications of aluminium spindle adaptor