Starrag Droop+Rein G/GF Series
Image: starrag.com, Starrag
Key Specifications
Spindle Power
machine type
spindle torque
number of axes
spindle torque max
How much does the Starrag Droop+Rein G/GF Series cost?
Estimated price range
Our best estimate for a 5-axis machining center in this class — not a quote from Starrag. Configuration moves it a long way.
Overview
The Starrag Droop+Rein G/GF Series is a floor-guided gantry with 5 continuous axes, a 150 kW spindle and up to 12,000 Nm (8,851 ft-lb) of torque. Floor-guided means the gantry travels on guideways at floor level while the workpiece stays still, so the weight of the part never has to be moved by the machine.
That layout is chosen for very long or very heavy parts. Because nothing under the workpiece moves, its weight is a matter for the foundation and the clamping surface, not for an axis drive, and the length of the machine can be matched to the part.
Torque is the figure to read here. At up to 12,000 Nm (8,851 ft-lb), the spindle is built for large-diameter face mills and heavy cuts in steel and cast iron. By comparison, the Droop+Rein TFS NEO Series is listed at 40 kW and up to 1,800 Nm (1,328 ft-lb). Starrag's table for the G/GF does not list travels, spindle speeds or tool capacity.
Full Specifications
| Parameter | Value |
|---|---|
| Machine Type | Floor-guided gantry, 5-axis |
| Spindle Motor Power | 150 kW |
| Spindle Torque | Up to 12,000 Nm (8,851 ft-lb) |
| Number of Axes | 5 (continuous) |
| Spindle Torque Max | 12,000 Nm |
Specifications sourced from starrag.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Up to 12,000 Nm (8,851 ft-lb) of spindle torque for heavy roughing
- 150 kW of spindle power to drive large-diameter cutters
- Floor-guided gantry: the workpiece stays stationary while the machine travels over it
Limitations
- No travels, spindle speeds or tool capacity appear in Starrag's table for the series
- The table gives one power and one torque figure with no speed at which they are delivered, so cutting data cannot be planned from it
Best For
Frequently Asked Questions
01
Starrag lists up to 12,000 Nm (8,851 ft-lb) of torque with 150 kW of spindle power. The wording is up to, so the figure belongs to the strongest spindle offered; the table does not list other spindle variants or the speed range.
02
Starrag describes the series as a floor-guided gantry with 5 continuous axes. In this layout the gantry travels along guideways at floor level and the workpiece remains fixed, so part weight does not load a moving table. Travels are not given in the published table.
03
The Droop+Rein TFS NEO Series is listed at 40 kW and up to 1,800 Nm (1,328 ft-lb). The G/GF is listed at 150 kW and up to 12,000 Nm (8,851 ft-lb), which puts it in a much heavier class of cutting.
