Jukomet Grinding Spindles – The Heart of a World-Class Machine
Is your Jukomet spindle giving you trouble? Our experienced team can help you quickly and easily—regardless of the manufacturer—drawing on years of experience in spindle service.
From a defunct mill to a global market leader
JUNKER is one of the world’s leading manufacturers of grinding machines. What began in 1962 in a disused grain mill in the Black Forest has grown into a global company with over 80 patents and locations across several continents. JUNKER enjoys an excellent reputation in industries such as the automotive sector, medical technology, and aerospace. Rather than making grand announcements, the company has traditionally focused on measurable results. Patents, awards, and an international customer base speak for themselves. In the field of CBN high-speed grinding, JUNKER is considered the benchmark, officially recognized as the global market leader by WirtschaftsWoche.
At the heart of this technological expertise lies a crucial component of every grinding machine: the grinding spindle. And this is where Jukomet comes in.
What's the story behind the name Jukomet?
Jukomet refers to the grinding spindle unit in JUNKER grinding machines, developed and manufactured according to the company’s own quality standards. It is not a purchased component, but is based on decades of experience in high-speed CBN grinding.
Directly driven and equipped with a structure-borne vibration sensor and a dynamic balancing system, the Jukomet spindle is designed for maximum smoothness and precision. It forms the heart of machines such as JUMAT, JUCRANK, and JUCENTER, which are used in demanding production lines worldwide.
What makes the Jukomet spindle so special
Three factors set Jukomet grinding spindles apart from the competition. First, their design is consistently geared toward high speeds: Jukomet spindles are optimized for CBN grinding at high cutting speeds, enabling short cycle times, long grinding wheel life, and consistently high surface quality.
Second, integration into a well-designed overall system: JUNKER’s patented 3-point mounting system enables quick tool and fixture changes—directly on the Jukomet spindle, without the need for time-consuming setup. This saves time and significantly reduces downtime costs.
Third, reliability in continuous operation: Jukomet spindles are designed for demanding industrial use. On automotive production lines, where the same machine repeats the same process day in and day out, downtime is not an option—and this is precisely what is reflected in the design of the Jukomet spindle.
Construction of a Jukomet grinding spindle
The basic design of the Jukomet grinding spindle is tailored to the requirements of high-speed CBN grinding. It is equipped with a direct drive featuring a high-frequency motor, precision spindle bearings with air seals, a structure-borne noise sensor for process monitoring, a dynamic balancing system in one or two planes, permanent grease lubrication of the bearings, and a standard flange interface according to the JUNKER standard.
What sets the Jukomet spindle apart from comparable products from other manufacturers is its unwavering focus on process reliability and repeatability—qualities that are proven every day in mass production.
Is your Jukomet grinding spindle defective? Kern Spindle Service can help quickly.
Jukomet spindles are designed for continuous operation, but they are also subject to wear and tear. Bearing failures, imbalances, increased vibrations, or a complete shutdown can quickly lead to high costs in high-speed production lines.
KERN Spindle Service specializes in the repair and overhaul of grinding spindles, including Jukomet spindles from JUNKER machines. Our technicians are familiar with the typical weak points and ensure fast, precise repairs so that your machine is back in operation quickly.
Is your Jukomet spindle showing signs of trouble? We're here to help—quickly and easily.