Starrag Starrag LX 051
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The Starrag LX 051 is a purpose-built 5-axis machining center for high-precision turbine blade machining. It handles blades up to approximately 510 mm (20.1 in) in length, targeting the medium-to-large blade segment found in low-pressure turbine stages of commercial jet engines and industrial gas turbine applications.
The LX 051 features an 18,000 RPM HSK-A63 spindle delivering approximately 35 kW (47 HP) with displacement and temperature sensors for thermal compensation during extended machining cycles. The machine provides full simultaneous 5-axis motion through a tilting/rotating workpiece fixture (A and B axes). Axis travels are approximately 1,050 mm (41.3 in) in X, 800 mm (31.5 in) in Y, and 800 mm (31.5 in) in Z.
The LX 051 incorporates proprietary blade machining process software with adaptive feed control and airfoil-specific tool path optimization. The Siemens SINUMERIK 840D sl control manages complex 5-axis interpolation where surface quality requirements of Ra < 0.6 um are standard. The Reverse Cutter System (RCS) technology improves finish on thin blade trailing edges by reversing the engagement geometry to support rather than deflect the thin wall.
Designed for robotic loading and multi-machine cell configurations (4-8 units per robot) for lights-out blade production. New machines price between $900,000 and $1,600,000.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 1,050 mm (41.3 in) |
| Y-Axis Travel | 800 mm (31.5 in) |
| Z-Axis Travel | 800 mm (31.5 in) |
| Max Blade Length | ~510 mm (20.1 in) |
| Max Spindle Speed | 18,000 RPM |
| Spindle Taper | HSK-A63 |
| Spindle Motor Power | 35 kW (47 HP) |
| Rotary Axes | A-axis (tilting) + B-axis (rotary), simultaneous 5-axis |
| Surface Finish Capability | Ra < 0.6 um |
| Tool Capacity | 60 standard (120 optional) |
| Positioning Accuracy | +/-0.005 mm (+/-0.0002 in) |
| Repeatability | +/-0.002 mm (+/-0.00008 in) |
| Rapid Traverse Rate | 40 m/min (1,575 IPM) |
| CNC Control | Siemens SINUMERIK 840D sl |
| Spindle Sensors | Displacement and temperature sensors |
Specifications sourced from starrag.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Purpose-built 5-axis architecture for turbine blade machining delivers optimized kinematics that general-purpose machines cannot match
- 18,000 RPM HSK-A63 spindle with integrated displacement and temperature sensors maintains precision during extended blade finishing
- Starrag RCS technology produces superior surface finish on thin blade trailing edges
- Ra < 0.6 um surface finish meets stringent aerospace specifications without secondary polishing
- Robotic loading enables lights-out multi-machine cell configurations
- Adaptive feed control and blade-specific process software optimize airfoil tool paths
Limitations
- Extremely specialized and cannot be economically repurposed for general 5-axis work
- Price of $900K-$1.6M is justified only at meaningful blade production volumes
- 510 mm blade capacity may require the larger LX 451 for the largest gas turbine blades
- Narrow resale market due to extreme specialization
Best For
Frequently Asked Questions
01
LX 021 handles blades up to 210 mm (compressor blades). LX 051 handles up to 510 mm (LP turbine and gas turbine blades) with proportionally larger axis travels.
02
Yes, optimized for Inconel 718, Waspaloy, Rene alloys, and titanium alloys like Ti-6Al-4V.
03
A 6-axis robot loads forgings, the machine completes all operations, and the robot unloads. One robot typically serves 4-8 LX 051 machines.
04
OPEN MIND hyperMILL, Siemens NX CAM, and specialized blade CAM modules with validated Starrag postprocessors.
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