Spindle types with letter "C" means the spindles have smaller outer diameter neck bearings and smaller wharves. It is beneficial to save the energy.    The letter ‘E’ means spindle with knee brake.
Optimum running speed range is 12000-16000rpm, with the proper spinning process conditions and high quality bob- bins, the maximum speed can    reach to 18000rpm-22000rpm depending on their different structure.
For the FTD3200 series spindles, each type of their bolster housing screw can also be made into M24x1.5. In this case their type are noted "M24", for    example, FTD3203C-M24.
For all series spindle types, when the spindle house and spindle rail hole is on coordinated installation, the letter "P" and the fit dia. Are noted behind for    example, FTD3203CE-20.5P25.

Spindle types with letter "C" means the spindles have smaller-outer-diameter neck bearings and smaller wharves. It is beneficial to save the energy.
Optimum running speed range: for spinning is 12000-16000rpm, with the proper spinning process conditions and high quality tubes, the maximum speed    can reach to 18000rpm-22000rpm depending on their different structure; for twisting is 7000-12000rpm.
Different types and sizes can be made for user's requirement.