Summary

The Grob G840 is a 4-axis universal machining center designed for heavy-duty milling, drilling, and cutting of large workpieces with high dynamic precision. It is engineered for robust operation with optimized stability, extensive spindle and tooling options, and efficient cooling systems. The machine supports flexible configurations to address complex, high-capacity parts production.

Key Capabilities

• 4-axis simultaneous machining with torque motor-driven B-axis
• Working envelope accommodates parts up to 1400 mm in diameter
• Choice of HSK, SK, or BIG-PLUS motorized spindles
• Configurable tool magazine with support for up to 450 pockets
• Cooling systems for spindle, rotary table, cutting fluid, control cabinet, and power train
• Supports maximum tool length up to 830 mm
• Programmable with SIEMENS control options
• Chip conveyor customization for various material types
• Internal coolant delivery (IKZ) option up to 120 bar

Key Specifications