GROB Spindles – Dynamics and Precision from the Allgäu Region
GROB Spindeln – A Global Player with Roots in Mindelheim
GROB-Werke, headquartered in Mindelheim, is one of the leading companies in the international machine tool industry. The family-owned company is best known for its highly complex system solutions. A key element of this capability, however, is its in-house spindle production, which has a capacity of over 2,000 motor spindles per year. In its public image, GROB deliberately avoids emphasizing individual components, letting the performance of its machines speak for itself instead.
Quality and reliability have always been our top priorities. It is well known within the industry that GROB develops and manufactures its motor spindles entirely in-house to ensure they are optimally tailored to the machines’ high dynamic requirements. The distinctive G-modules feature spindle technology that achieves speeds of up to 30,000 rpm and sets international standards.
As a global player, GROB stands out for its technological expertise and components designed for long service life and sustained performance.
Why GROB spindles make no compromises in mass production
In mass production, every detail counts. Cycle times, process reliability, and repeatability leave no room for half-measures. This is exactly where GROB spindles come into play.
The key factor is the combination of dynamic performance and power density. GROB motor spindles are designed to reliably handle high cutting forces at high speeds. With torques of up to 800 Nm in the heavy-duty versions and power ratings of up to 80 kW, they deliver the performance required for demanding production processes.
Thermal stability is equally important. Thanks to sophisticated cooling systems, process reliability is maintained even in high-speed applications with cutting speeds exceeding 3,000 m/min. The integrated sensor technology for bearing monitoring also helps prevent unplanned downtime and reduce associated costs.
Despite their complex integration into the machine, GROB spindles are designed for ease of maintenance. They can be overhauled efficiently, which is crucial in the event of a breakdown. A professional overhaul at KERN can cost up to 30 percent less than purchasing a new unit and helps keep downtime to a minimum.
In series production, this means: maximum performance, high reliability, and cost-effective maintenance without compromise.
This is what GROB spindles look like from the inside
In their design, GROB spindles reflect the perfection of modern mechanical engineering:
- High-performance drive: Integrated motors with torques ranging from 200 Nm to 800 Nm.
- Speed ranges: Optimized for specific applications from 12,000 rpm to 30,000 rpm.
- Precision bearings: hybrid or steel bearings, designed for maximum rigidity.
- Smart Monitoring: Sensors for temperature, vibration, and axial shaft displacement.
Spindle Repair for Your GROB Motor Spindles
Since GROB spindles serve as core components in highly automated production lines, professional service is essential in the event of wear and tear. At KERN GmbH, we specialize in providing spindle maintenance and repair services for your company. We understand the high standards of Allgäu precision engineering and ensure that your GROB spindle will once again deliver the exact performance specifications required after an overhaul.
Are you looking for a service partner who can help you with any issues related to your GROB spindle? We recommend contacting our customer service department directly. At KERN GmbH, we are happy to assist you with any issues related to GROB spindles—and, of course, with products from other manufacturers as well.
