Rotating Dynamometer for High-Performance Cutting

Winterthur, 12 February 2015  – Kistler expands its range of RCDs (Rotating Cutting Force Dynamometers) with the new Type 9171A rotating dynamometer for use in high-performance cutting applications. Type 9171A measures forces and torques even under very heavy loads and thereby allows machining processes to be analyzed and optimized while drawing conclusions on tool wear. The fully revamped piezoelectric dynamometer delivers a much larger range of spindle speed, improved dynamic properties, and a significant weight reduction.

Rotating Dynamometer for High Loads

The latest generation of the Type 9171A 4-component RCD adds a particularly robust model to the existing RCD family, delivering perfect measuring results even under increased loads. Like all stationary and rotating dynamometers from Kistler, the Type 9171A also includes a piezoelectric sensor, which is able to measure forces and torques in the machining process with extreme precision thanks to its especially high rigidity and natural frequency.

Advanced Technical Development

The fully revamped successor to Type 9124B displays numerous improvements: 2.5 times the range of spindle speed, improved dynamic properties, and a significant weight reduction over the previous RCD allow forces and torques to be measured under high loads. The use of a new, fully rotationally symmetrical 4-component force sensor minimizes the influence of centrifugal forces, while more powerful system electronics deliver superlative signal quality.

Designed for High-Performance Cutting

With a large force range of up to 20 kN (Fx, Fy) or 30 kN (Fz) and a maximum torque of 1000 Nm, the RCD Type 9171A is perfectly equipped for machining processes in extreme ranges. High-performance cutting is characterized by removal of very large volumes of material in a short time. It involves very large forces and very high torques. The large measuring range and the compact design make the RCD Type 9171A well suited to the spindle interfaces HSK-A100 and Capto C8 often used in HPC. Smaller spindle adapters can, however, also be used.

Adapted to Various Spindle Interfaces

Kistler dynamometers have an impressively robust and compact design and are easy to use. The Type 9171A rotating dynamometer is inserted in the machine spindle like a standard toolholder. Various designs of spindle adapter and toolholder are available from Kistler and can be interchanged by the customer. This enables users who use different spindle interfaces on their machine tools to equip the RCD as required.

Increased Flexibility Thanks to Non-Contact Data Transmission

Measurement data is transferred and energy is supplied through a non-contact near-field telemetry, which permits greater distances between rotor and stator. With immediate effect, three different low-pass filter levels can be set. The individual force and torque ranges can also be selected independently of one another, making optimum signal control possible.

Accessories for Types 9171A and 9170A

The stator Type 5236B, cable Type 1500A95, and signal conditioner Type 5238B can not only be used for the RCD Type 9171A but are also compatible with the smaller RCD Type 9170A (primarily designed for finishing processes with correspondingly smaller forces and higher speeds). The signal conditioner automatically detects which rotor is being used and automatically undertakes the corresponding settings.

 

Would you like to know more about our product?

Would you like to get a picture in high-res and download our press release in PDF format? You will find more information on our cutting force solutions by clicking on this link.

 

User Contact

Manuel Blattner
Head of Business Field Cutting Force
Phone +41 52 224 12 73
E-mail: manuel.blattner(at)kistler.com

 

Media Contact

Tabea Zuberbühler
Media Coordination
Phone +41 52 224 12 74
E-mail: tabea.zuberbuehler(at)kistler.com

 

Caption: The Kistler Type 9171A rotating dynamometer measures forces and torques even under very heavy loads and thereby allows machining processes to be analyzed and optimized while drawing conclusions on tool wear.

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