Steel turbine rotor with rows of machined blade slots resting on blue supports
Rotor Slotting Machine
Innse-Berardi FCT Turbine Rotor Slotter Milling Machine
FCT dedicated machine for fir-tree slots on turbine rotors
Innse-Berardi FCT is a dedicated machine for precise fir-tree slot machining on turbine rotors. Two synchronized opposing units and automatic indexing keep blade seats accurate and consistent over time.
Manufactured byInnse-Berardi
2 unitsSynchronized opposing machining units
All axesForced-lubrication prismatic guides
AutomaticWorkpiece indexing
Fir-treeSlot profile
Overview
Fir-tree slots with two units at once
The FCT is the Innse-Berardi machine for high-precision machining of fir-tree slots on turbine rotors. These slots need strict geometric accuracy and long-term consistency so the blades seat correctly and the rotor performs as designed.
Forced-lubrication prismatic guideways on all axes absorb vibration, giving good quality in both roughing and finishing of complex profiles. The main spindle takes a range of tools, from high-speed cutters to bell-type milling cutters, with high torque.
In the standard set-up two opposing machining units work at the same time, which shortens processing time. An automatic workpiece indexing system positions the rotor repeatably between slots.
Applications
Operations on turbine rotors
The FCT is dedicated to the slot work that holds turbine blades on the rotor.
Fir-tree slot roughing
High-torque cutting with vibration-damping guideways removes material from the slot profile.
Fir-tree slot finishing
Finishing of complex profiles to the geometric accuracy needed for blade seating.
Indexed slot sequences
Automatic indexing positions the rotor repeatably for each slot.
Features
Machine features
- Forced-lubrication prismatic guideways on all axes
- Two synchronized opposing machining units
- Automatic workpiece indexing system
- Main spindle for high-speed and bell-type milling cutters
- High torque for roughing and finishing
Benefits
What it brings to rotor production
Correct blade seating from accurate slot geometry
Shorter processing time with two units working together
Consistent quality from roughing to finishing
Machining turbine rotor slots?
Send us your rotor size and slot profiles, and our Machinery team will review how the FCT fits your production.
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