Atlas Copco ETP ST32‑10‑10 Pistol Cable Nutrunner (Tensor ST)

The Atlas Copco ETP ST32‑10‑10 is a pistol‑grip electric nutrunner from the Tensor ST series, designed for precision fastening in light to medium‑duty assembly applications. This cable‑connected tool delivers accurate torque and angle control, making it ideal for industries such as electronics, automotive interiors, and small appliance manufacturing. Its ergonomic pistol‑grip design reduces operator fatigue, while the robust motor and gear train ensure long‑term reliability and consistent performance.

Design and Ergonomics

The tool features a lightweight, balanced pistol‑grip housing with a soft rubber overmold for comfortable handling. The trigger is positioned for easy one‑finger operation, and a forward/reverse switch is conveniently located for quick direction changes. The cable connection is strain‑relieved to prevent damage during repeated use. An integrated LED work light illuminates the fastening area, improving accuracy in dim environments. The tool weighs approximately 1.2 kg and is designed for single‑handed operation.

Control and Precision

Equipped with a brushless DC motor and a high‑resolution angle encoder, the ETP ST32‑10‑10 delivers torque from 2 to 10 N·m with an accuracy of ±2.5% of the set value. The angle measurement resolution is 0.1°, enabling sophisticated tightening strategies such as torque‑control, angle‑control, and yield detection. The tool supports multi‑step programs, allowing operators to define snug, final, and re‑tightening stages within a single cycle.

Technical Specifications

• Torque Range: 2 – 10 N·m (adjustable)

• Free Speed: 1000 rpm (nominal)

• Drive Size: 1/4″ hex or square (depending on configuration)

• Voltage: 36 VDC (powered via controller)

• Cable Length: 3 m (standard)

• Weight: 1.2 kg

• Noise Level: < 72 dB(A)

• Vibration: < 2.0 m/s²

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

Integration with Controllers

The nutrunner is fully compatible with Atlas Copco Power Focus and Tensor controllers (PF3000, PF4000, TC‑4000 series). It communicates via a dedicated cable using CAN‑bus protocol, enabling real‑time data exchange for torque, angle, and tool status. The controller can store multiple tightening programs and download them to the tool, allowing rapid changeovers. Firmware updates are performed via the controller's software suite.

Safety and Quality Assurance

The tool incorporates a dual‑safety shutdown feature: if the torque or angle exceeds preset limits, the motor stops instantly and an error signal is sent to the controller. A built‑in temperature sensor prevents overheating during prolonged use. Every tightening cycle is logged with a unique timestamp and can be traced back to the operator and workpiece via barcode integration, ensuring full compliance with ISO 5393 and VDI/VDE 2645 standards.

Applications

Typical applications include electronics assembly (screws in laptops, smartphones), automotive interior fastening (dashboard panels, door trims), appliance manufacturing (small motors, housings), and general light assembly where precision and repeatability are required.

Maintenance and Service

Routine maintenance includes lubrication of the gear train every 500 operating hours, using Atlas Copco approved grease. The brushless motor requires no brush replacement, reducing downtime. The tool's housing can be wiped clean with mild solvents. A comprehensive diagnostic routine, accessible via the controller, checks motor current, encoder health, and thermal performance.

Benefits for Production

By providing accurate torque and angle in an ergonomic pistol‑grip format, the ETP ST32‑10‑10 reduces rework and operator fatigue. Its quick‑change tool holders and standardized interface minimize setup time. The integration with plant network enables real‑time monitoring and predictive maintenance, leading to higher overall equipment effectiveness.

Conclusion

The Atlas Copco ETP ST32‑10‑10 pistol cable nutrunner is a reliable, precise, and ergonomic solution for light‑duty fastening tasks. Its advanced electronics, robust mechanics, and seamless controller integration make it a valuable addition to any professional assembly operation.