Atlas Copco 4240-0367-81 PF4 Tool Cable – High‑Flexibility Connectivity for Precision Assembly

The Atlas Copco 4240-0367-81 (also recorded as 4240036781) is a high‑performance tool cable purpose‑built for the Power Focus 4 (PF4) tightening system. This cable is designed to transmit both electrical power and real‑time communication signals between the controller and the electric nutrunner, ensuring that every fastening operation is executed with the highest accuracy and repeatability. With a 5‑meter length and straight connector configuration, it offers a practical and durable solution for a wide variety of assembly stations.

Introduction to the 4240-0367-81 Cable

As part of Atlas Copco’s original accessory lineup, the 4240-0367-81 is manufactured to the same exacting standards as the tools and controllers it connects. It is particularly suited for applications where the tool must be moved frequently along the workstation, such as in multi‑model assembly lines or manual cart‑based systems. The cable’s straight connector simplifies insertion and removal, reducing strain on the tool’s receptacle and extending the service life of both the cable and the tool.

Detailed Technical Data

• Part Number: 4240-0367-81 / 4240036781

• Cable Category: PF4 interconnection lead

• Length: 5.0 meters

• Connector Style: Straight, keyed, with quick‑lock collar

• Conductor Material: Stranded bare copper

• Insulation: Polypropylene (PP) with color‑coded cores

• Overall Shielding: Copper braid (90% coverage) + aluminum mylar tape

• Jacket Material: Thermoplastic polyurethane (TPU) – resistant to oils, UV, and mechanical abrasion

• Bending Radius: 65 mm (static) / 85 mm (dynamic)

• Operating Temperature: –30 °C to +90 °C

• Rated Voltage: 300 V

• Maximum Current: 10 A

• Communication Protocol: CAN‑bus and RS‑485 compatible

• IP Rating (mated): IP67

These parameters ensure that the cable can handle the full power output of the PF4 controller while maintaining clear, error‑free digital communication for torque and angle data.

Ergonomic and Mechanical Advantages

The 4240-0367-81 is engineered with operator convenience in mind. Its lightweight and flexible construction reduces drag force on the tool, making it easier to maneuver in tight spots. The smooth, glossy outer jacket minimizes friction against workbenches and machine edges, preventing snags. The straight connector’s low‑profile design allows the tool to be placed flat on a surface without the cable protruding awkwardly, which is beneficial when the tool is not in use.

Additionally, the cable features a strain relief boot at both ends, which absorbs mechanical stress caused by pulling or twisting. This reduces the risk of internal wire breakage—a common failure point in cheaper cables—and ensures that the 4240-0367-81 maintains its electrical integrity over thousands of operating cycles.

Compatibility with Atlas Copco Systems

This cable is officially listed for use with Power Focus 4 controllers and all PF4‑compatible tools, including the Tensor ST, Tensor SR, and ETV series. It also works with legacy Focus 4000 controllers when used with an appropriate adapter. The straight connector orientation is preferred in applications where the tool is suspended from a balancer, as it allows the cable to hang straight down without additional bending.

For systems requiring longer distances, Atlas Copco offers extension cables and junction boxes, but the 4240-0367-81 provides an optimal balance between reach and signal fidelity for most workstation layouts.

Electrical Performance and Noise Immunity

In modern factories, electromagnetic interference (EMI) can degrade communication signals, leading to false readings or intermittent tool faults. The 4240-0367-81’s dual‑layer shielding provides over 95% attenuation of external noise, guaranteeing stable data transmission even when installed near welding robots, motor drives, or radio frequency equipment. The cable’s controlled impedance matches the PF4 bus requirements, minimizing reflections and ensuring that high‑speed data packets are received without errors.

Power delivery is equally robust. The cable’s low DC resistance limits voltage drop to less than 1.5% at maximum load, which is critical for tools that require precise voltage regulation for torque control. This results in more consistent tightening results and reduces the need for frequent calibration.

Typical Applications

• Automotive powertrain assembly – connecting nutrunners for cylinder head and connecting rod bolts

• Off‑road vehicle manufacturing – providing reliable connections in dusty and muddy environments

• Medical device assembly – where cleanroom compatibility and traceability are essential

• Renewable energy – wind turbine and solar panel structural fastening

• Railway maintenance – portable tool trolleys for on‑site bolting

Installation Best Practices

To maximize the cable’s lifespan, it should be routed with adequate clearance from moving parts and heat sources. Use cable ties with smooth edges to avoid cutting the jacket. When connecting, ensure that the locking collar is fully tightened to achieve the IP67 seal. Avoid exceeding the minimum bending radius, especially near the connector ends, as this can stress the internal conductors.

Maintenance and Replacement Guidelines

Regular inspection of the 4240-0367-81 for cuts, abrasions, or connector corrosion is recommended. If the cable shows signs of wear, it should be replaced with an original Atlas Copco part to maintain system performance. The modular design allows replacement to be completed in under five minutes without special tools, minimizing production downtime.

Environmental and Safety Certifications

This cable is manufactured in compliance with REACH, RoHS, and WEEE directives. The TPU jacket is flame‑retardant (UL 94 V‑0) and free from phthalates. The cable also meets the electrical safety requirements of IEC 61010‑1 for measurement, control, and laboratory equipment.

Conclusion

The Atlas Copco 4240-0367-81 PF4 tool cable is a dependable, high‑quality accessory that ensures your Power Focus 4 system operates at its full potential. With excellent mechanical flexibility, robust shielding, and precise electrical characteristics, it provides the connectivity needed for modern, data‑driven assembly processes. Investing in genuine Atlas Copco cables like the 4240-0367-81 guarantees long‑term reliability and contributes to overall manufacturing excellence.