Space-Saving Five-Axis Provides Productive Mold Machining

The G150 five-axis universal machining center from Grob Systems Inc. is a small but mighty innovation targeting moldmaking applications. It is equipped with features that provide a wide range of benefits including optimal chip evacuation via its a horizontal spindle position which reportedly permits the longest possible Z-travel path in its machine class. Tool changes occur outside of the work area, which eliminates chip interference. 

Three linear and two rotary axes enable five-sided machining and simultaneous interpolation. The machine’s distinct axis arrangement makes overhead machining possible, offering operators improved accessibility for a broad range of part sizes. It also minimizes the distance between the guides and the machining point and permits a large 230-degree swivel range in the A-axis.

Torque motors in the A and B axes ensure dynamic and wear-free machining of parts. According to the company, a tunnel concept allows the largest possible component — even when using very long tools — to be machined within the work area without collision. The Grob G150 has working travels in the X, Y, Z axes of 450, 670 and 665 mm, and maximum speeds of 50, 40 and 60 m/min, respectively.

The video below illustrates how these features enabled the machining of a bottle mold with a high gloss finish. 

When used in conjunction with the Grob pallet tower storage system (PSS-T) which automatically removes and loads pallets for unmanned operations and/or lightly attended shifts, users receive the power of a larger moldmaking machine option coupled with a space-saving tower design that helps provide ideal access to the work area.