CNC spot-facing, milling and drilling machines

Machining centre with centrally located mandrel for aligning, drilling and turning both ends of the workpiece onto one clamping. The overall concept of the centre is focused on minimum installation dimensions with maximum utilization of workspace. Cast iron structure of the lathe bed, slides, tool heads and headstocks is essential for the overall rigidity of the machine and permanent stability in continuous operation.
The machine is equipped with four slides with axis X1, Z1 and X2, Z2 which are designed using sliding guides. For the ZAH 650 CNC machine the linear guide is used on the longitudinal and transverse supports.
The most important design feature is the design of the central mandrel for which it has been managed to achieve very compact dimensions with hydraulic clamping, with internal additional lubrication using oil mist, and the precise positioning.
This arrangement allows very precise shaft machining with one clamping at both sides.
Machines with this principle of a central mandrel achieve the highest possible accuracy in work centre alignment and (run-out) of the turned surfaces from both sides and it cannot be achieved any other way. Therefore, the above centres are in great demand, especially in the automotive industry for the manufacture of gearbox components and related parts.

Next level of centre is integration of automatic workpiece replacement, eventually merging into multiple production lines using portal loaders or robots.