• GMN at AMB with Three Innovations
• The IDEA-4E Digital Ecosystem Optimizes Maintenance Schedules
• Two New Spindles for the Aerospace Industry and Micromilling

Nuremberg, July 22, 2026. At AMB 2026, GMN is introducing three new products for high-performance, process-reliable spindle technology. The IDEA-4E edge device is the new, central component of the IDEA-4x digital spindle ecosystem. It analyzes the condition of grinding and milling spindles, determines the optimal maintenance interval, and notifies the user. This helps improve the planning of service calls and prevent unplanned machine downtime.

Also new are two spindle series: a robust design for high-volume aluminum machining in the aerospace industry, and a compact high-speed spindle for micromilling.

GMN will be exhibiting at the AMB in Stuttgart from September 15 to 19 in Hall 6, Booth B16. There, the machine tool manufacturer will showcase a selection of its products in addition to the new spindles. The company will also demonstrate the IDEA-4E edge device with installed apps on an IDEA-4x demonstrator, which visualizes sensor data and provides maintenance forecasts.

With the IDEA-4E edge device, GMN is expanding its IDEA-4x digital ecosystem to include the ability to generate maintenance forecasts. It manages the data collected by the IDEA-4S embedded system for spindles and the IDEA-4Lub embedded system for lubrication units. The Edge PC’s user interface can be installed on all common control systems regardless of manufacturer, including those from Siemens, Fanuc, Heidenhain, and Mitsubishi.

Based on the measurement data, IDEA-4E determines the spindle’s status, identifies the optimal service time, and provides specific recommendations for action. Sensors installed in the motor spindle continuously collect data on temperature, speed, tool clamping status, vibrations, and axial shaft displacement.

Based on the principle of “Customized Digitalization,” users select their desired scope of services—ranging from the integration of individual components to turnkey full-service integration.

The customer retains control over the data: The data remains on their machine, and they have the option to use it for hybrid and cloud solutions.

A sample calculation illustrates the benefits: Without an edge device, a machine is idle for about two days in the event of spindle damage; with IDEA-4x, the downtime can be reliably reduced to a predictable half-day.

For high-volume machining of aluminum monolithic components, GMN is presenting the HCS 230i-30000/150 high-frequency motor spindle at AMB. It offers 150 kW S1, speeds up to 30,000 rpm, and an HSK-63 tool holder. An advanced rotor with a simplified design reduces the installation size by 30 mm and lowers the weight.
High dynamic stiffness and thermal robustness ensure stable processes even at high temperatures; for aluminum, material removal rates of approximately 12 to 14 l/min are possible. The series comprises six models with 80, 120, and 150 kW—optionally with an HSK-63 at 30,000 rpm or an HSK-100 at 20,000 rpm.
The spindle model with integrated IDEA-4S and the PRELUB GP PLUS lubrication unit will be on display at the booth.

The third new product is designed for machinists in the field of micromilling: The UHC 120-45000/18 is a compact high-frequency spindle for automatic tool change with an HSK-E 40 mounting. It delivers 18 kW of S1 power at up to 45,000 rpm.
With a shaft diameter of just 120 mm, this innovation combines high rigidity and high speeds with excellent thermal stability and high-precision dynamic concentricity—all while maintaining minimal tolerances. An inductive sensor operating on the eddy current principle monitors spindle nose growth during the process. An optional external vibration sensor additionally detects instabilities in the process and warns of collisions.
The series is designed for users in the tool and mold making, microelectronics, medical technology, and optical industries.

The machinery manufacturer GMN Paul Müller Industrie GmbH & Co. KG is a family-owned business founded in 1908 and now managed by the fourth generation of the family. Approximately 470 employees develop and manufacture high-precision ball bearings and systems, machine spindles, electric drives, clamping-body freewheels, and non-contact seals exclusively at the company’s headquarters in Nuremberg.
GMN’s export share stands at approximately 45 percent, and the company supplies its products to customers around the world. These customers come from a wide range of industries, notably mechanical engineering, model and vehicle manufacturing, and aerospace technology. GMN provides sales and service through a global network of representatives and branches.