Mägerle MGC-F-840

$1,000,000 - $1,500,000 Updated 2026-03-17

Key Specifications

table longitudinal travel

840 mm (33.1 in)

table cross travel

700 mm (27.6 in)

vertical travel

600 mm (23.6 in)

max workpiece weight

800 kg (1,764 lb)

axis drive system

Linear motors (X, Y, Z axes)

cnc axes

5-axis (X, Y, Z, A, B)

Overview

The Mägerle MGC-F-840 is a flexible CNC profile and surface grinding center in Mägerle's MGC-F (Flexible) series, combining the 840 mm longitudinal table travel with a multi-axis configuration that enables a broader range of aerospace and precision engineering components than the blade-dedicated MGC-B series. The MGC-F designation indicates the machine's ability to handle diverse workpiece families — turbine blade root forms, vane platforms, structural aerospace components, carbide tooling blanks, and precision flat parts — in the same machine without the single-application focus of the MGC-B.

The MGC-F-840 retains Mägerle's core platform advantages: linear motor drives on all primary axes for ±1 µm positioning repeatability, active thermal management of the machine bed, spindle, and coolant, and the Siemens 840D sl control with Mägerle's proprietary grinding software. The flexible configuration adds greater vertical travel and an A-axis tilt capability for the wheelhead, allowing profile angles, compound relief surfaces, and complex 3D contours that are not possible on a fixed-head machine. This additional axis freedom is critical for aerospace vane and structural component grinding where the workpiece geometry requires simultaneous 4- or 5-axis motion.

Spindle power on the MGC-F-840 is 45 kW — slightly below the 55 kW blade production maximum of the MGC-B-840 — reflecting the MGC-F's broader application scope where raw MRR is balanced against setup flexibility and axis motion envelope. The machine supports automatic wheel changing with up to 10 positions, enabling complex multi-operation grinding sequences on diverse workpiece types without manual wheel changes. The extended 840 mm table travel accommodates both long blade arrays and the longer structural components (frames, brackets, precision plates) that the flexible configuration is designed to handle.

The MGC-F-840 is positioned for aerospace precision shops, defense subcontractors, and precision engineering companies that need the highest grinding accuracy across multiple component types rather than the dedicated production focus of the MGC-B series. New pricing typically falls in the $1,000,000–$1,500,000 range, slightly below the MGC-B-840 premium but still firmly in the highest-tier precision grinding segment.

Full Specifications

Parameter	Value
Table Longitudinal Travel	840 mm (33.1 in)
Table Cross Travel	700 mm (27.6 in)
Vertical Travel	600 mm (23.6 in)
Max Workpiece Weight	800 kg (1,764 lb)
Axis Drive System	Linear motors (X, Y, Z axes)
Cnc Axes	5-axis (X, Y, Z, A, B)
Grinding Spindle Power	45 kW (60.3 HP)
Max Wheel Peripheral Speed	80 m/s
Max Grinding Wheel Diameter	500 mm (19.7 in)
Positioning Repeatability	±1 µm
Wheel Changer	Automatic (up to 10 positions)
Thermal Compensation	Active thermal management — bed, spindle, coolant
Coolant Pressure	Up to 150 bar (2,175 psi)
CNC Control	Siemens 840D sl with Mägerle grinding software
Machine Base	Polymer concrete with active thermal stabilization
Manufacturer	GE Healthcare
Model	M3550

Specifications sourced from machinio.com — verified 2026-03-28

Strengths & Limitations

Strengths

5-axis (X, Y, Z, A, B) simultaneous capability with A-axis wheelhead tilt enables complex vane platform geometries, compound clearance surfaces, and 3D contours beyond the reach of fixed-head production grinders
Linear motor drives on all primary axes provide ±1 µm positioning repeatability — the same precision foundation as the MGC-B production series, applied to a broader workpiece range
45 kW spindle supports CBN creep-feed grinding of aerospace superalloys across diverse component families — turbine hardware, structural aerospace, and precision tooling in the same machine
840 mm longitudinal travel handles both long blade arrays and large structural aerospace components in the same platform without machine changes between component families
10-position automatic wheel changer enables multi-operation sequences (roughing, profiling, finishing, chamfering) in a single unattended setup across diverse workpiece types

Limitations

At $1,000,000–$1,500,000, the MGC-F-840 is exclusively justifiable for shops with consistent high-value aerospace or precision engineering workloads across multiple component families
The 5-axis flexibility adds programming complexity — complex vane and structural component programs require experienced CAM programmers and significant process development time
At 45 kW, the MGC-F-840 has slightly lower peak MRR capability than the 55 kW MGC-B-840 — for the highest-throughput blade production scenarios, the dedicated MGC-B-840 is the better choice

Best For

Aerospace precision subcontractors that grind multiple turbine component families (blades, vanes, structural brackets) and need one flexible platform rather than multiple dedicated machines Defense prime contractors producing diverse turbine and structural aerospace components where the 5-axis capability covers the full geometric range of the part family in a single machine investment Aerospace MRO facilities performing dimensional restoration and repair grinding on both blade profiles and structural components across multiple engine families Precision engineering companies serving aerospace and energy sectors who need a top-tier grinding platform that can adapt to new component programs without major machine reconfiguration

Frequently Asked Questions

01 What is the difference between the MGC-F and MGC-B series?

The MGC-B (Blade) series is optimized for maximum MRR in dedicated turbine blade root form production — it has higher spindle power (55 kW) and is configured specifically for blade geometry cycles. The MGC-F (Flexible) series adds A-axis wheelhead tilt and greater vertical travel for 5-axis simultaneous grinding of more complex and diverse workpiece geometries, trading some peak MRR for broader application capability. If you have one primary part family that is blade root forms, the MGC-B is the better choice; for diverse aerospace component families, the MGC-F provides more value.

02 What components is the MGC-F-840 designed to grind?

The MGC-F-840 is designed for aerospace turbine blades and vanes (fir-tree and dovetail root forms, shroud platforms, airfoil profiles), structural aerospace components (frames, brackets, precision flat surfaces), compressor disks, precision tooling blanks (carbide plate grinding), and any high-accuracy component requiring 4- or 5-axis simultaneous grinding motion for complex profile and relief angle generation.

03 How does the active thermal management system work?

The MGC-F-840's thermal management continuously monitors temperature at the bed, spindle, and coolant circuit. A thermal model in the CNC software predicts dimensional drift from temperature gradients and applies real-time axis offset corrections. The bed temperature is actively controlled — not just measured — to minimize the thermal expansion driving positional drift. This system prevents the grinding gap from drifting more than ±0.5 µm during a full production shift, essential for maintaining profile tolerances on long batch runs without operator recalibration.

04 Can the MGC-F-840 be used for die and mold grinding?

Technically yes, but the MGC-F-840 is significantly over-specified for most die and mold applications. Mägerle machines are optimized for aerospace superalloy creep-feed grinding where the investment is justified by the part value and volume. For die and mold grinding, Blohm's PROFIMAT series provides comparable surface finish and profile grinding capability at a fraction of the cost. The MGC-F-840 makes economic sense only when the workpiece value, tolerance requirements, and production volume collectively justify the machine's price tier.

05 Is the MGC-F-840 available with robot automation?

Yes. Mägerle and United Grinding offer complete turnkey cell integration for the MGC-F-840, including robot loading and unloading, automatic pallet transfer systems, in-process gauging, and MES interface for production data logging. The Siemens 840D sl control provides PROFINET I/O for robot integration. Cell integration is particularly common for the MGC-F-840 in aerospace shops running large batches of mixed component types, where the machine's flexibility must be combined with automated part handling to minimize operator involvement between part programs.