Starrag NX 138
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
How much does the Starrag NX 138 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 NX 138 is a 5-axis machining center specified for heavy cutting, with a listed 100 kW (134 HP) continuous spindle on an HSK-A100 taper and a top speed of 6,000 RPM. Travels are 1,380 mm (54.3 in) in X, 1,000 mm (39.4 in) in Y and 800 mm (31.5 in) in Z. This model is absent from Starrag's current product pages, so read the listed figures as unconfirmed.
Power of that size under a 6,000 RPM ceiling describes a machine for hard, slow-cutting materials, where large cutters run at low surface speed and metal comes off through torque. It is the opposite of a high-speed aluminium spindle. The maximum feed rate of 20 m/min (787 IPM) is modest for the same reason. No torque figure is listed, and that is the first number to ask for.
Both rotary axes are in the workholding: an A-axis tilting table and a C-axis rotary table, while the linear motion comes from a moving column. Workpieces can be up to 1,200 mm (47.2 in) long and 1,500 kg (3,307 lb). Positioning accuracy is listed at ±0.008 mm (±0.00031 in) and repeatability at ±0.004 mm (±0.00016 in). The tool magazine holds 60 tools as standard, with 120 optional, and the control is a Siemens SINUMERIK 840D sl.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 1,380 mm (54.3 in) |
| Y-Axis Travel | 1,000 mm (39.4 in) |
| Z-Axis Travel | 800 mm (31.5 in) |
| Rotary Axes | A-axis (tilting table) + C-axis (rotary table) |
| Max Spindle Speed | 6,000 RPM |
| Spindle Taper | HSK-A100 |
| Spindle Motor Power | 100 kW (134 HP) continuous |
| Max Workpiece Weight | 1,500 kg (3,307 lb) |
| Max Workpiece Length | 1,200 mm (47.2 in) |
| Feed Rate Max | 20 m/min (787 IPM) |
| Tool Capacity | 60 standard (120 optional) |
| Positioning Accuracy | ±0.008 mm (±0.00031 in) |
| Repeatability | ±0.004 mm (±0.00016 in) |
| CNC Control | Siemens SINUMERIK 840D sl |
| Architecture | Moving column, stationary table |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- 100 kW (134 HP) continuous spindle power on an HSK-A100 taper
- Tilting A-axis and rotary C-axis table for 5-axis work on parts up to 1,500 kg (3,307 lb)
- Travels of 1,380 mm (54.3 in), 1,000 mm (39.4 in) and 800 mm (31.5 in)
- 60 tools as standard, with 120 optional
Limitations
- 6,000 RPM maximum spindle speed rules out small-tool finishing at high surface speed
- Maximum feed rate is listed at only 20 m/min (787 IPM)
- Workpiece length is limited to 1,200 mm (47.2 in), less than the 1,380 mm (54.3 in) of X travel
- No spindle torque or machine weight is listed, and the model is not on Starrag's current product pages
Best For
Frequently Asked Questions
01
The listed spindle delivers 100 kW (134 HP) continuous through an HSK-A100 taper and runs to 6,000 RPM. No torque figure is listed. The combination of high power and low top speed points to large cutters in hard materials.
02
Up to 1,200 mm (47.2 in) long and 1,500 kg (3,307 lb), according to the listed figures. The travels are 1,380 mm (54.3 in) in X, 1,000 mm (39.4 in) in Y and 800 mm (31.5 in) in Z.
03
The rotary axes are an A-axis tilting table and a C-axis rotary table, so the part tilts and rotates. X, Y and Z come from a moving column. The table itself does not travel in the linear axes.
04
Positioning accuracy of ±0.008 mm (±0.00031 in) and repeatability of ±0.004 mm (±0.00016 in). These are listed figures with no current Starrag page behind them, so confirm them for the individual machine.
