The G3 series Swiss-type CNC lathes (models L326, L385, L386) are designed for high-capacity precision machining, supporting bar diameters up to 38 mm and spindle through-holes up to 39 mm.

All models allow guide bushing-less operation with a maximum unsupported length of 2.5×D (up to 80–90 mm depending on model), as well as rotary guide sleeve operation with supported lengths up to 310 mm. Back spindle clamping capacity matches the main spindle (up to Ø38 mm).

Main spindle speeds reach up to 8000 rpm (6000 rpm with rotary guide sleeve), while sub-spindle speed is maintained at 8000 rpm across all configurations. Live tooling speeds reach 6000 rpm for both radial and back operations, allowing full machining capability including drilling, milling, and tapping.

Machining capacities include drilling up to Ø13 mm and tapping up to M12 on the main spindle, and up to Ø10 mm / M10 on the back spindle. Radial live tooling supports drilling up to Ø10 mm and tapping up to M8, with optional back-powered tools available depending on the configuration.

The tooling system supports multiple tool stations including external turning tools (up to 6 positions), end-face tools (ER20), radial live tools, deep hole holders, and back machining stations (ER16), enabling complete part machining in a single setup.

Rapid axis movements reach up to 30 m/min (X1, Y1, Z1, Z2) and 24 m/min (X2, Y2), contributing to reduced cycle times. Positioning accuracy is ≤0.003 mm with spindle runout ≤0.002 mm, supporting high-precision applications.

Installed spindle power is rated at 6.3 kW for the main spindle and 4.2 kW for the sub-spindle, with additional 1.1 kW live tooling motors and integrated axis drives. Machine weight is approximately 3750 kg, with a footprint ranging from 2960×1660×1920 mm to 3100×1660×1920 mm depending on the model.