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Data sheet F4xS

Product catalog summary

Overview: This document is a technical data sheet for the FxiS and FxeS torque measuring systems by ATESTEO GmbH & Co. KG, created on January 26, 2026. It provides detailed specifications, mechanical dimensions, speed measuring systems, temperature ranges, mechanical values, and other technical data for these systems.

Specifications: The systems are available in types F4iS and F4eS, with an accuracy class of ≤±0.10%. Rated torque values range from 60,000 Nm to 120,000 Nm. The torque measuring system uses rotating technology, with outputs including frequency (RS422), voltage, current, and CAN bus.

Mechanical Dimensions: The rotor has an outer diameter of 418 mm and a length of 254 mm. The pitch circle diameter is 369.0 mm. The systems can operate at speeds up to 8,000 rpm with an inductive speed encoder.

Output and Accuracy: The systems provide frequency, voltage, and current outputs with varying accuracy levels. Frequency and CAN outputs have an accuracy of ≤±0.10%, while voltage and current outputs have an accuracy of ≤±0.15%.

Temperature Ranges: The nominal temperature range for the rotor is 0 to 80°C, and for the stator, it is 0 to 70°C or 0 to 80°C depending on the type. Operating and storage temperature ranges are also specified.

Mechanical Values: Torsional stiffness ranges from 28,650 to 52,950 kNm/rad, and the angle of twist at Mdn is between 0.120° and 0.130°. Axial and radial stiffness values are provided, along with bending stiffness and deflection limits.

Load Limits: The document specifies limit and breaking torque values, axial and lateral limit forces, and bending limit torque. These values vary depending on the type and configuration of the system.

Additional Information: The systems have a protection class of IP54, and the material used is steel. The document also includes sales information, such as article numbers and compatibility with evaluation units.

Notes: The document includes several notes on nominal torque, second torque range, mechanical dimensions, and load limits. It emphasizes that the values provided are subject to change and should be verified with the latest drawings and specifications.

Key Sections:

Vibration Limits: The document specifies that vibration limits do not affect the machine but indicate the allowed impact on the rotor, following ISO 7919-3 standards. The parameter 'n' is measured in revolutions per minute (r/min).
Weights: Weights mentioned are for components without additional options like speed detection systems. For precise weight information, especially with options, contacting ATESTEO is recommended.
Flatness and Concentricity Tolerances: These are manufacturing tolerances related to the rotor's flatness and concentricity.
Supply Voltage: The supply voltage range should be specified at the measurement system side. Long wires may reduce the voltage level from the power supply to the measurement system.

Drawings: The document includes several drawings of the F4xS system and its components, such as the F4iS and F4eS systems, rotors, and stators, as well as the TCU2 F4xS.

Contact Information: For more information about ATESTEO's products, solutions, and services, contact details are provided, including phone numbers and email addresses.

Catalog excerpts

Data sheet FxiS / FxeS ©2026, ATESTEO GmbH & Co. KG, This product data sheet was created on 01.26.2026. The information contained in the product data sheet corresponds to the status quo at the time the document was created. ATESTEO continually further develops its products and reserves the right to make changes to the technical data. ATESTEO does not accept any liability for consequential losses arising from the use of this product data sheet or the information contained therein.

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Technical data Type Accuracy class Torque measuring system Rated torque short measurement range (optional, minimum) (Mdns) #2 Frequency (RS422), Voltage, Current, CAN bus, Alert see test report Accuracy class extended (for Mdn) % Test signal - Outer diameter of rotor #4 mm Lengths (Rotor, without centering) mm Pitch circle diameter #5 mm Speeds and speed measuring systems Speed detection (integrated) Speed detection (optional) Maximum Speed without speed detection system rpm Optional increased speed rpm Maximum speed with magnetic speed encoder rpm Maximum speed with optical speed encoder rpm...

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Technical data Type Accuracy class Linearity deviation including hysteresis related to Mdn Frequency, 0%...30% Frequency, 30%...60% Frequency, 60%...100% CAN, 0%...30% CAN, 60%...100% Voltage output Current output Rel. standard deviation of the reproducibility according to DIN 1319, by reference to variation of the output signal (rel. to Mdn) Frequency output CAN output Voltage output Current output Temperature influence per 10K in the nominal temperature range on the output signal related to the actual value of signal span (rel. to Mdn) Frequency output CAN output Voltage output Current output...

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Technical data Type Accuracy class Nominal sensitivity (range between zero torque and rated torque) Output signal at zero torque Nominal output signal Frequency output at positive nominal value kHz Frequency output at negative nominal value kHz Voltage output at positive nominal value V Voltage output at negative nominal value V Current output at positive nominal value mA Current output at negative nominal value mA Group delay time (main TCU) ©2026, ATESTEO GmbH & Co. KG, This product data sheet was created on 01.26.2026. The information contained in the product data sheet corresponds to the...

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Technical data Type Accuracy class Speed measuring system Inductive (track at rotor) Maximum speeds (related to PPR) rpm 8,000 Minimum speed for sufficient pulse stability rpm >1.7 Speed measuring system Magneto resistive (2 tracks approx. 90 degree phase shifted) Maximum speeds (related to PPR) rpm N/A Minimum speed for sufficient pulse stability rpm N/A Nominal clearance (sensor - pole ring) mm N/A Working airgap (sensor - pole ring) mm N/A Nominal axial displacement (rotor - stator) #7 mm N/A Tolerance to nominal axial displacement (rotor - stator) mm N/A Speed measuring system Optical Maximum...

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Technical data Type Accuracy class Angular measuring system ©2026, ATESTEO GmbH & Co. KG, This product data sheet was created on 01.26.2026. The information contained in the product data sheet corresponds to the status quo at the time the document was created. ATESTEO continually further develops its products and reserves the right to make changes to the technical data. ATESTEO does not accept any liability for consequential losses arising from the use of this product data sheet or the information contained therein. 6

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Technical data Type Accuracy class Temperature ranges Nominal temperature range (Rotor) Operating temperature range (Rotor) #8 Storage temperature range (Rotor) Nominal temperature range (Stator) Operating temperature range (Stator) #9 Storage temperature range (Stator) Nominal temperature range (TCU) Operating temperature range (TCU) Storage temperature range (TCU) Load limits Limit torque, related to Mdn Breaking torque approx., related to Mdn Axial limit force Lateral limit force Bending limit torque ©2026, ATESTEO GmbH & Co. KG, This product data sheet was created on 01.26.2026. The information...

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Technical data Type Accuracy class Mechanical values Torsional stiffness Axial stiffness Radial stiffness Bending stiffness Deflection at axial limit force mm <0.07 Additional radial deviation at lateral limit force mm <0.02 Parallel deviation at bending limit torque mm <0.06 Inherent frequency Max. limits for relative shaft vibration (peak to peak) #11 pm ©2026, ATESTEO GmbH & Co. KG, This product data sheet was created on 01.26.2026. The information contained in the product data sheet corresponds to the status quo at the time the document was created. ATESTEO continually further develops its...

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Technical data Type Accuracy class Weight approx. kg Stator (without speed encoder) #12 kg Mounting distances (without optional speed detection system) Nominal radial displacement (rotor - stator) mm Tolerance to nominal radial displacement (rotor - stator) mm Nominal axial displacement (rotor - stator) #7 mm Tolerance to nominal axial displacement (rotor - stator) mm Flatness and concentricity tolerances rotor Circular run-out-axial tolerance #13 mm Circular run-out-radial tolerance #13 mm Power supply Max. current consumption in measuring mode A Max. current consumption in start-up mode A Nominal...

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Technical data Type Accuracy class Protection class (Rotor) Protection class (Stator) Protection class (rotor, extended) Protection class (stator, extended) Pitch circle screw information CAN bus type Configuration interface Central hole Material Measuring range (related to Mdn) Compatible evaluation units (TCU) Stator type Sales information Article number U.S. FCC certificate ©2026, ATESTEO GmbH & Co. KG, This product data sheet was created on 01.26.2026. The information contained in the product data sheet corresponds to the status quo at the time the document was created. ATESTEO continually...

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Remarks and information Link no. Topic #2 Second torque range #5 Pitch circle diameter #8 Temperature range (rotor) #9 Temperature range (stator) Based on customer requests, the measurement systems can optionally be optimized for not listed nominal torque values (intermediate ranges possible). The written second nominal torque value (Mdns) is the smallest possible. Greater second torque ranges can be chosen on demand. Mechanical values and load limits vary between single and dual range torque meters. A data sheet for dual range torque meters with specific values can be requested. Mechanical dimensions...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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