Atlas Copco STanalyser STA‑6000 Torque Analyzer (8059095560 / M.41252.02)

The Atlas Copco STanalyser STA‑6000, designated by part number 8059095560 and model M.41252.02, is a high‑precision torque and angle measurement instrument designed for professional validation of tightening tools and assemblies. This portable analyzer is the reference standard for calibration laboratories, quality assurance departments, and maintenance workshops, offering unmatched accuracy and repeatability in dynamic and static torque measurement.

Measurement Capabilities

The STA‑6000 is capable of measuring torque from 0.1 N·m up to 2000 N·m, depending on the transducer connected. It supports both clockwise and counter‑clockwise readings with an accuracy class of 0.5% of reading (for dynamic) and 0.2% for static modes. The built‑in angle encoder measures rotation angle with a resolution of 0.1°, enabling comprehensive joint characterisation including yield point detection and friction analysis.

Hardware Design

The instrument features a rugged aluminium housing with a large 5.7‑inch colour LCD display that shows real‑time torque and angle values, as well as graphical trend curves. It is powered by a rechargeable lithium‑ion battery offering up to 8 hours of continuous operation, or via AC mains. The front panel includes a membrane keypad for menu navigation and function selection, while multiple transducer connectors (including D‑sub and LEMO) ensure compatibility with all Atlas Copco and third‑party torque sensors.

Technical Specifications

• Measurement Range: 0.1–2000 N·m (depending on transducer)

• Accuracy: ±0.5% (dynamic), ±0.2% (static) of reading

• Angle Resolution: 0.1°

• Sampling Rate: 10,000 samples per second

• Display: 5.7″ TFT, 640x480 pixels

• Data Storage: Internal memory for 10,000 measurements, expandable via SD card

• Interfaces: USB, RS‑232, Ethernet, and Bluetooth (optional)

• Power: 100–240 VAC adapter or internal battery

• Operating Temperature: 0 °C to +45 °C

Software and Analysis Functions

The STA‑6000 comes with the STanalyser PC software suite, which allows users to create test sequences, define tolerances, and generate calibration certificates. The device itself offers numerous analysis functions: peak torque, final torque, angle at torque, torque rate, and clamping force estimation (using angle‑based methods). The instrument also supports statistical process control with live Cp/Cpk calculations and histogram display.

Calibration and Traceability

This analyzer is designed for easy calibration using external reference weights or master transducers. It includes a built‑in calibration wizard that guides the user through the process, automatically compensating for transducer non‑linearity. All measurement data is time‑stamped and can be stored with operator IDs, ensuring full traceability to international standards (ISO 6789, ISO 5393).

Application Areas

The STA‑6000 is widely used in automotive production lines for audit stations, in aerospace maintenance for fastener verification, and in power generation for turbine bolt tensioning. It is also an essential tool in research and development laboratories for evaluating new joint designs and tool performance. Its portability allows on‑site testing at multiple workstations without moving the instrument.

Integration with Production Systems

Through its Ethernet and USB interfaces, the analyzer can upload results directly to a central database or quality management system. It can also be triggered by external signals (e.g., from a PLC) for automated testing in a production flow. The device supports barcode scanning for work order association, simplifying documentation.

Maintenance and Reliability

The STA‑6000 is built with high‑quality components and requires only periodic calibration verification. The battery is user‑replaceable, and firmware upgrades are available via USB. The instrument comes with a protective carrying case and a set of cables and adapters for immediate deployment.

Advantages for Quality Assurance

By providing precise, repeatable measurements, the STanalyser helps manufacturers detect and correct tightening issues early, reducing rework and warranty claims. Its intuitive interface and comprehensive reporting make it easy to train operators, while the advanced analysis capabilities support continuous improvement initiatives.

Conclusion

The Atlas Copco STanalyser STA‑6000 (8059095560 / M.41252.02) is the gold standard for torque and angle verification. Its accuracy, versatility, and data management features make it an indispensable partner for any organisation that demands the highest level of joint quality and process control.