Sandvik Coromant Quick Change for CNC Lathes - Manual (Page 5)

5
Heavy duty & flat bed lathes –
extremely high stability but slow tool indexing and changing with no
ATC. Shank tool holders are very heavy often needing a crane. Quick
change is widely used with VDI DIN 69881 (dovetail) holders on flat
bed lathes or dedicated clamping unit blocks on heavy duty lathes.
With the limited number of tool positions quick change has a dramatic
effect on machine efficiency.