LX 021

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LX 021

A comprehensive integrated solution from one source – from the machining system via the specially developed CAM system through to the integration of process monitoring systems

Machining of all types of blade with one jig thanks to an innovative and flexible fixture concept

The optimisation of unit costs for ready-to-install blades thanks to an integral machining concept for pre and postprocessing in a clamping position


Turbine blade machining center

The LX series was specifically designed for the high-precision, efficient five-axis machining of turbine blades. This ultra-modern machining platform is the result of decades of experience in the development of machine tools, CAM systems and special tools combined with our in-house expertise in the prototype and series production of turbine blades.

Axis configuration

Innovative Solutions

  • Any component requiring periodic service are easy accessible
  • Replacement items e.g. filters, wipers etc are easy to access
  • Machine components require service are simply to access and repair
  • Safe working areas for maintenance personal e.g. platforms and attach point are provided
  • Condition based machine monitoring to predict future component failure
  • Full subspindle
  • Horizontal / vertical
    positioning / machining
  • Max. rpm: 4,000 1/min
  • identical to mainspindle
  • The rotary axes are directly driven by state-of-the-art torque motors
  • Guarantees the most precise positioning
  • High torque even at low speed
  • Highest possible rigidity for maximum dynamics
  • Power transmission free of backlash and extended service intervals
  • No mechanical component wear
  • Driven tip station with controllable torque

Process analyses and stability evaluations can be made easily with integrated sensors and evaluation routines. Collision damage is significantly reduced thanks to rapid crash detection and machine stop. This is an excellent addition to Starrag’s simulation solutions to avoid expensive machine downtime. The balancing quality of all tools and the state of the spindle bearings are automatically monitored.

  • Thermo-symmetrical design
  • Elements of cast design
  • Extremely stable and low vibration
  • Optimized using the FE method
  • Compact design for complete transport and low space requirement
  • High running and positioning accuracy
  • Short positioning and start-up times thanks to high acceleration
  • emission extractor
  • handheld unit
  • compresser temperature cooling unit
  • remote diagnosis
  • warm up program
  • energy efficiency
  • Swarf conveyor
  • Generous swarf openings and angled areas
  • Integrated washing system with workpiece shower
  • Suited for either wet or dry machining
  • Water cooled High Torque motor spindle
  • Hybrid spindle bearings with oil/air lubrication
  • Spindle taper DIN 69893 HSK-A40
  • Technical Data: Power at 100% duty 13 kW
  • Torque at 100% duty 12.5 Nm up to 10’000rpm
  • Max. speed 30,000 rpm
  • Spindle interlock
  • Autom. Pallet Changer with 70 Pockets Palletmagazine
  • Barfeeder Solutiions for a compleltly automated and manless production
  • Disk magazine with 30 tool pockets (standard) Extendable up to 90 tool pockets (2 additional Disks)
  • Double Gripper Tool Change System
  • Tool Taper HSK-A40

The special work-piece geometries create specific demands on the clamping fixtures. Starrag has in-house specialists who develop individual clamping concepts to meet the specific requirement of blade machining. Starrag offers the following advantages:

  • A single adapter design solution for all LX machine sizes using vices (at the hub) and hydraulic clamping jaws (at the shroud)
  • Clamping jaws can be implemented in a flexible way both for raw and for premachined surfaces
  • Geometric deviations between multiple fixtures can be stored in the control system. Measuring of blanks can therefore often be eliminated
  • Various clamping units on a retaking unit available

One key factor to lowest tool cost and highest productivity is the right process cooling selection. On the LX machines offers all state-ofthe- art through-spindle cooling options:

  • High pressure coolant (water-based or oil)

Of course external cooling with coolant is possible too. With these options, breakthroughs in tool life can be achieved, leading to the lowest overall cost.

  • Measurement of the workpiece for highes precision
  • Tactile tool measurement
  • Contour fidelity during high-speed machining through look-ahead feature and dynamic preselection
  • Drive parameter adjustment depending on the machining
  • Control behavior and NC path planning are developed and optimized in great detail to achieve the perfect combination of geometrical accuracy, surface quality and of course productivity.
  • Depending on the required application, the machine can be optimally configured using five settings: roughing, pre-finishing, fast finishing, finishing and super finishing.

Everything from simply part storage to most complex flexible manufacturing systems – even of the largest machines. The Starrag Group makes Industry 4.0 a reality. Read more

Technical Data

Max. distance between centers mm 400
Swing Diameter mm 200
X-Axis mm 400
Y-Axis mm 200
Z-Axis mm 410
A-Axis (Root Station) degree 360 endless
AA-Axis (Tip Station) degree 360 endless
Swivel B-Axis degree -45 / +95
Linear Axes X/Y/Z m/min 50
Rotary Axis A rpm 400 (4000)
Rotary Axis B rpm 60
max. Speed rpm 30 000 (40 000)
Max. Power at 100% Duty kW 21
Max. Torque at 100% Duty Nm 20.1
Tool Taper HSK-A40 (HSK-T40)
Max. Tool Weight kg 1.2
Max. Tool Diameter mm 80
Max. Tool Length mm 150
Standard / Max number of Tools 30 / 60 / 90
Tool change time sec 1.5
Max. Workpiece Diameter mm 160
Total weight (part and fixture) kg 20
Workpiece Change Time sec ca. 30
Linear Axes P mm 0.004
Linear Axes Ps mm 0.0018
Rotary Axes P sec 6.0
Rotary Axes Ps sec 4.0
Weight kg 6400
Lenght x Width x Height mm 5000 x 3000 x 2800
Safety Concept CE-compliant
CNC Control Siemens

Unmachined parts go in, finished parts come out

Starrag FMS enables fully automated turbine blade production

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Interview of WTB blade line retrofit

Wuxi Turbine Blade Co., Ltd. (WTB)

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AECC Chengdu Engine Co., Ltd.

The introduction of Chengdu Engine history

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Adaptive manufacturing of turbine blades

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Service Plus Package

Perfect service for perfect machines

Precondition for above-average productivity, efficiency and economy is a constant high availability of the machine. And necessary for this above all, besides innovative technology, is: A tailored service, which is perfectly coordinated to your individual requirements.

ServicePlus guarantees you machine availabilities of at least 95%!


Our call center staff immediately understands your service requirements and passes them on quickly and appropriately to our technical hotline or to the appropriate service advisor.

Starrag Hotline: +49 371 836 23 68

All Service Products

Spindle overhaul

Overhaul concepts tailored optimally to your requirements

Training courses

Efficient machine operation thanks to optimal training courses

Replacement parts

Fast and reliable supply of replacement parts due to global logistics network


High technical availability through preventive maintenance

Service near you

Time is money! That also applies when it concerns the service and maintenance of your machine. The Starrag Service and Logistics Centres near you have the necessary infrastructure, in order to guarantee you perfect service.

Service Contact

Partnering for Efficiency

Service Plus

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