Heavy duty horizontal borer provides precision solution

The HBM-4 Dugard Eagle CNC horizontal boring machine is a high specification rigid and powerful solution for large components weighing up to five tonnes and up to 5.5 by 2.6 by 1.3 m that require precision boring, milling, drilling and certain turning cycles. The HBM-4, weighs some 22 tonnes and has a 30 kW motor mounted within a heavy duty column. This is carried over its 1,600 Z-axis stroke on hardened and ground boxways having the advantage of two additional supporting ways giving maximum stability and aiding positioning accuracy. A multi-pitch worm driven rotary table of 1,200 by 1,500 mm has one micron indexing as standard while a hydraulic clamping torque of 4.5 tonnes applied to the heavy duty bed ensures precision indexing and rigidity. This enables heavy cutting and tool overhang conditions such as when line-type boring operations are performed -- typical use for a machine of this type.