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GMN USA Precision Spindles & Repair

100+ years of German spindle engineering for the North American market. High-speed grinding, high-power milling, manual and automatic tool change spindles — plus full CNC spindle repair services for GMN and other brands. From standard configurations to custom-engineered solutions.

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Precision Machining Spindles

As a subsidiary of GMN Germany, GMN USA delivers world-class spindle technology to the North American market. With over 100 years of design and manufacturing experience, GMN spindles are trusted in aerospace, automotive, medical, semiconductor, and general machining applications. Every spindle uses GMN's own high-precision bearings — manufactured in Nuremberg, Germany — ensuring exceptional speed capability, accuracy, and service life.

Manual Tool Change Spindles

Accounting for about 50% of GMN's production, these spindles undergo continuous refinement to meet evolving high-speed grinding and milling needs. Standard and custom configurations available.

Automatic Tool Change Spindles

Designed for CNC machining centers where automatic tool changes eliminate manual intervention, enhance efficiency, reduce downtime, and boost productivity. Full range for aerospace and production machining.

Custom-Engineered Spindles

Tailored to meet specific requirements for particular machines and applications. GMN engineers collaborate with your team from concept through production to deliver the optimal spindle solution.

CNC Spindle Repair Services

Spindle replacement isn't always the answer. GMN USA's state-of-the-art repair facility provides full diagnostic, repair, and testing services for GMN spindles and most other brands and models. Expert technicians use original GMN parts and bearings to restore your spindle to factory specifications.

Services include complete teardown and inspection, bearing replacement, balancing, run-testing, and performance verification. Contact us for a repair evaluation and turnaround estimate.

Accessories & Support Equipment

GMN USA supplies a complete range of spindle accessories to maximize performance and service life, including oil/air lubricators (PRELUB system), coolant chillers (Pfannenberg), spindle drives and inverters, cable assemblies, grinding quills, and the IDEA-4S intelligent spindle monitoring system with IO-Link interface.

Get a GMN Spindle Quote or Repair Estimate

For new spindles: tell us your application, speed requirements, and interface. For repairs: send us your spindle model and symptoms. We'll respond within one business day.

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