Precision, fast operation and reliability are the main features of the new AC 650 and AC 650M Cylinder Boring Machines.
The two models, dimensionally and structurally alike, only differ in the table drive system: manual traverse on the AC 650 and power traverse on the AC 650M.
Although they have been designed for reconditioning of small and middle-sized I.C. engine blocks, they can profitably be used also for other jobs such as con-rod and bearing housing boring, etc.
On the AC 650M, with power table trav-erse, it is possible, by using a milling cutter, to resurface the contact surface, of cylinder blocks and heads as well as manifolds in either cast iron or aluminium. All of these operations are performed in the most rational way and with the utmost fastness as both models are equipped with a special device which allows fast boring spindle change and gives the possibility to preset the tools out of machine for subsequent machining.