Magerle MFP 51
Key Specifications
Spindle Power
clamping width
table traverse x
crossfeed y
vertical z
wheel dressing
Overview
The Magerle MFP 51 is a CNC profile and surface grinding machine from Magerle, the United Grinding Group's specialist in large-format profile grinding for aerospace, automotive, and power generation industries. Where Blohm's Profimat handles mid-size profile grinding, Magerle's MFP series addresses production-scale profile grinding of large workpieces — turbine blades, compressor disks, and aerospace structural sections requiring complex 2D profiles ground in hardened nickel, titanium, and steel alloys.
The MFP 51 provides a 510 mm clamping width with X/Y/Z CNC axes plus a CNC profile dressing system that conditions the grinding wheel to the required cross-sectional geometry. The machine's rotary table option enables multi-face component processing in a single setup, a significant advantage for compressor disks requiring profile grinding on multiple blade root slots around the disk perimeter. Magerle's high-pressure coolant system (up to 80 bar) enables aggressive creep-feed grinding of nickel superalloys at material removal rates that minimize thermal damage in these aerospace-critical materials.
Magerle machines dominate the production turbine blade root grinding segment, installed at the major aero-engine OEMs — GE, Pratt & Whitney, Rolls-Royce — and their tier-1 suppliers. The MFP 51's 510 mm clamping width handles single-stage turbine blades and compressor stages up to medium-sized engines. For larger blades (long-haul turbofan and industrial gas turbine), Magerle offers the MFP 100 with a 1,000 mm clamping width.
At $600,000-$900,000 new, the MFP 51 is a specialized aerospace production investment. The machine justifies its cost through consistent profile accuracy (±0.002 mm or better), high throughput on turbine blade root forms, and the ability to maintain residual stress profiles within aerospace specification in nickel superalloy grinding — requirements that no other grinding technology meets at production scale.
Full Specifications
| Parameter | Value |
|---|---|
| Clamping Width | 510 mm (20.1 in) |
| Table Traverse X | 600 mm (23.6 in) |
| Crossfeed Y | 550 mm (21.7 in) |
| Vertical Z | 400 mm (15.7 in) |
| Wheel Dressing | CNC profile dressing system |
| Max Wheel Speed | 80 m/s (15,748 fpm) |
| Spindle Motor Power | 45 kW (60.3 hp) |
| Profile Accuracy | ±0.002 mm (±0.00008 in) |
| Coolant Pressure | Up to 80 bar (1,160 psi) |
| CNC Control | Fanuc with C.O.R.E. platform |
| Machine Weight | ~15,000 kg (33,069 lb) |
Strengths & Limitations
Strengths
- ±0.002 mm profile accuracy meets the tightest aerospace turbine blade root form tolerances for GE, P&W, and Rolls-Royce specifications
- 45 kW spindle at 80 m/s wheel speed provides high material removal rates in creep-feed grinding of Inconel and René alloys
- 80 bar high-pressure coolant system enables thermal management in nickel superalloy grinding, protecting surface integrity
- Rotary table option enables multi-slot compressor disk grinding in a single setup, reducing fixturing time and improving roundness
- Magerle is the installed standard at major aero-engine OEMs — proven in production on GE90, Trent, and PW1000G programs
- C.O.R.E. platform integration for aerospace facilities running multiple United Grinding brands
Limitations
- $600K-$900K investment requires dedicated aerospace turbine blade production volume to justify
- 15,000 kg machine weight requires substantial foundation engineering — not a retrofit machine
- Magerle applications require aerospace grinding process engineers — operator skill requirements exceed general surface grinding
- 80 bar coolant system requires high-capacity coolant infrastructure and filtration
- Lead times typically 18-24 months for new machine delivery from United Grinding
Best For
Frequently Asked Questions
01
Creep-feed grinding uses a very slow workpiece feed (1-100 mm/min) with a deep cut (0.1-30 mm per pass) and a continuously dressed profile wheel. This produces the complex cross-sectional profile in a single slow pass rather than many shallow reciprocating passes. Magerle's MFP machines are optimized for creep-feed with high spindle power, high-pressure coolant, and continuous CNC wheel dressing that maintains profile accuracy across long production runs — requirements that conventional surface grinders cannot meet.
02
Yes. The MFP 51 grinds titanium alloys (Ti-6Al-4V, Ti-6242) used in compressor stages of modern turbofan engines. Titanium grinding requires lower wheel speeds and different coolant strategies than nickel alloy grinding to avoid titanium fire risk. Magerle's application engineers specify the grinding parameters, wheel selection, and coolant pressure for each titanium alloy and blade geometry.
03
The Profimat MC 608 is Blohm's mid-size profile grinder for toolrooms and smaller aerospace operations — 37 kW spindle, up to $650K. The Magerle MFP 51 is a production-scale aerospace machine — 45 kW spindle, higher wheel speeds, 80 bar coolant, and ±0.002 mm profile accuracy versus ±0.003 mm. The Magerle is designed for aerospace OEM production rates; the Blohm for precision job shop profile grinding.
04
The MFP 51 grinds fir-tree root profiles (3-7 lobe), dovetail root profiles, platform profiles, and complex multi-radius airfoil cross-sections. The CNC profile dressing system stores and manages multiple profile programs, enabling rapid changeover between blade families. Profile accuracy is maintained across production runs through in-process gauging and automatic dress-compensation.
Videos
UNITED GRINDING North America
UNITED GRINDING North America
MÄGERLE
UNITED GRINDING North America
UNITED GRINDING North America
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