Magnetic Engines Brings Rotor Balancing In-House – and Opens Up a New Tier of CFM56 Capability

Magnetic Engines has acquired two specialist balancing machines – one vertical, one horizontal – bringing rotor balancing in-house, and removing one of the last major external dependencies in its CFM56 engine repair process. 

The investment expands the company’s repair capabilities, shortens turnaround times, and enables a range of new workscopes previously outside the scope of the division.

Rotor balancing isn’t optional. 

Every rotating module of an engine – compressor discs, turbine spools, shafts, drums – has to be balanced after performance restoration work or following the replacement of life-limited parts. 

Skip it, and the reassembled engine carries vibration into service. It is a non-negotiable step, and until now, it was one that Magnetic Engines had to hand off to external partners.

That meant longer turnaround times on every workscope where balancing was involved. It also meant that certain jobs – particularly those requiring the multi-step balancing sequence for the LPT Major Module – were complex enough to decline altogether.

Both of those constraints are now gone.

With the vertical and horizontal machines operational, Magnetic Engines can perform static and dynamic balancing across all four rotor assemblies of the CFM56: the low-pressure compressor, high-pressure compressor, high-pressure turbine, and low-pressure turbine.

The immediate effect is speed. The deeper effect is scope. Three new product lines are now available: full overhaul and rebuild of the LPT Major Module, overhaul and rebuild of the Fan and Booster Shop Module (SM21), and life-limited parts replacement on HPC and HPT rotors. Core Performance Restoration workscopes can now be performed with LLP replacement included – a combination that wasn’t viable before.

The LPT Major Module rebuild is particularly significant. It is a workscope that generates revenue on a par with a full engine repair, and Magnetic Engines will now offer it both to external clients and for its own engine assets.

The roadmap extends further: Magnetic Engines intends to carry this capability forward to LEAP engines as that programme develops within the division.