ABB IRB67003HAC043456-003 IRB67003HAC055440-0033HAC043456-0

Product Details

IRB67003HAC043456-003 IRB67003HAC055440-0033HAC043456-003 3HAC055440-003 Product Description

The ABB 3HAC055440-003 is a precision servo motor engineered specifically for the IRB 6700 industrial robot series — ABB's flagship heavy-payload articulated arm platform deployed across automotive, metal fabrication, foundry, and general manufacturing environments. As a factory-matched axis drive component, the 3HAC055440-003 is not simply a replacement part; it is a system-critical element that defines the motion fidelity, positional repeatability, and long-term mechanical reliability of the entire robot cell. Understanding its role within the broader control architecture is essential for engineers responsible for system commissioning, predictive maintenance, and multi-robot line integration.

In a fully deployed IRB 6700 automation cell, the servo motor operates as the electromechanical actuator at the axis level, receiving torque commands from the IRC5 drive module and translating them into precise angular displacement. The IRC5 controller — comprising the main computer unit, axis computer boards, and drive units — forms the intelligence layer above the motor. Signal integrity between the IRC5 drive and the 3HAC055440-003 is maintained through the robot's internal resolver or encoder feedback loop, ensuring closed-loop position control with sub-millimeter repeatability across the full working envelope of the IRB 6700's 235 kg payload capacity.

The 3HAC055440-003 does not operate in isolation. Its performance is inseparable from the layered architecture of the IRB 6700 robot system and the broader automation cell in which it is deployed. At the control layer, the IRC5 main computer (3HAC025338-001) executes RAPID motion programs and dispatches interpolated axis commands to the drive units. These commands flow through the IRC5 axis computer board (3HAC026254-001), which manages real-time torque and velocity regulation for each axis motor — including the 3HAC055440-003.

At the power layer, the IRC5 drive unit (3HAC024488-001) converts DC bus power into the variable-frequency AC waveform required to energize the servo motor windings. The DC bus itself is fed by the IRC5 rectifier unit, which conditions incoming three-phase industrial supply voltage. Proper sizing of the power supply chain — including the transformer unit (3HAC028929-001) — is critical to maintaining stable motor torque output under dynamic load conditions typical of heavy-payload welding or material handling cycles.

At the I/O and safety layer, the robot cell integrates with the plant's safety PLC via the IRC5 safety module (DSQC 400 series), which monitors axis brake status, motor temperature feedback, and emergency stop circuits. The 3HAC055440-003 includes an integrated thermal sensor that feeds directly into this safety monitoring chain, enabling the IRC5 to detect overtemperature conditions before they escalate to motor insulation failure — a key advantage in continuous-duty foundry or press-tending applications.

At the communication layer, the IRC5 controller supports DeviceNet, PROFIBUS, EtherNet/IP, and PROFINET fieldbus protocols through optional communication boards (DSQC 651 / DSQC 652 series), enabling seamless integration with Siemens S7 PLCs, Allen-Bradley ControlLogix systems, or Beckhoff TwinCAT platforms that supervise the broader production line. This multi-protocol flexibility ensures the IRB 6700 — and by extension the 3HAC055440-003 — can be deployed in heterogeneous control environments without gateway translation overhead.

At the HMI and programming layer, the ABB FlexPendant (3HAC028357-001) provides the operator interface for jogging individual axes, executing service routines, and verifying motor feedback after a servo replacement. Following installation of the 3HAC055440-003, the FlexPendant is used to perform the revolution counter update and fine calibration procedures that restore the robot's absolute position reference — a mandatory commissioning step that ensures positional accuracy is maintained to factory specification.

For multi-robot cells, the IRC5 MultiMove controller coordinates synchronized motion across up to four IRB 6700 units, with each robot's axis motors — including the 3HAC055440-003 — operating under a unified motion supervision framework. This architecture is common in automotive body-in-white welding lines where coordinated robot paths must maintain millimeter-level synchronization across the entire cell cycle.

Automotive Manufacturing: In body-in-white welding and assembly lines, the IRB 6700 equipped with the 3HAC055440-003 servo motor delivers the payload capacity and path accuracy required for resistance spot welding, arc welding, and panel handling. The motor's thermal stability under continuous-duty cycles is critical in high-throughput automotive plants where robot uptime directly impacts line OEE.

Metal Fabrication and Foundry: Foundry environments subject robot components to elevated ambient temperatures, vibration, and particulate contamination. The 3HAC055440-003's factory-sealed construction and integrated thermal monitoring make it well-suited for die-casting extraction, sand casting handling, and press-tending applications where standard servo motors would require frequent replacement.

Petrochemical and Energy: In hazardous-area adjacent applications — such as drum handling, valve assembly, or pipeline component fabrication — the IRB 6700's reach and payload, driven by the 3HAC055440-003, enable automation of tasks that would otherwise require manual intervention in risk-elevated zones. Integration with safety PLCs via the IRC5 safety module ensures compliance with functional safety requirements.

Packaging and Palletizing: High-speed palletizing lines demand consistent cycle times and minimal unplanned downtime. The 3HAC055440-003's system-matched design eliminates the compatibility risk associated with non-OEM servo replacements, ensuring that after maintenance, the robot returns to its validated motion profile without requiring full recalibration of the production program.

Shipbuilding and Heavy Industry: Large-scale welding and cutting applications in shipyards leverage the IRB 6700's extended reach and heavy payload. In these environments, servo motor reliability over multi-year service intervals is paramount, and the 12-Month Warranty provided with the 3HAC055440-003 supports procurement teams in managing maintenance budget cycles with confidence.

Q1: Is the 3HAC055440-003 compatible with all IRB 6700 variants, and does it require axis-specific calibration after installation? The 3HAC055440-003 is designed for the IRB 6700 series and is compatible across the primary payload variants (150/150, 200/260, 235/130, 300/270, 500/300). After installation, the IRC5 controller requires a revolution counter update via the FlexPendant, followed by fine calibration using the robot's calibration pendulum or calibration marks. This procedure restores the absolute encoder reference and is mandatory to ensure positional accuracy returns to factory specification. No hardware modifications to the IRC5 drive unit or axis computer are required for a like-for-like replacement.

Q2: How does the 3HAC055440-003 integrate with third-party PLC and SCADA systems in a multi-vendor control architecture? The servo motor itself interfaces exclusively with the IRC5 drive and axis computer — it does not communicate directly with external PLCs or SCADA systems. Integration at the plant level is managed through the IRC5 controller's fieldbus communication boards (DSQC 651 for DeviceNet, DSQC 652 for PROFIBUS, or EtherNet/IP / PROFINET options). These boards expose robot status, program execution state, and I/O signals to the supervising PLC, enabling the IRB 6700 to operate as a coordinated node within a Siemens TIA Portal, Rockwell Studio 5000, or Beckhoff TwinCAT environment without requiring changes to the servo motor configuration.

Q3: What does the 12-Month Warranty cover, and how does NANKMOS support long-term inventory availability for ongoing maintenance programs? The 3HAC055440-003 is supplied with a 12-Month Warranty covering manufacturing defects and functional performance under normal operating conditions. Each unit undergoes pre-shipment functional testing to verify winding integrity, encoder signal quality, and mechanical rotation before dispatch. For customers managing multi-robot fleets or long-term maintenance contracts, NANKMOS maintains stocked inventory of IRB 6700 series components to support planned maintenance windows and emergency replacement scenarios. Contextual Integration support is available to assist engineering teams in confirming part compatibility, calibration requirements, and system architecture fit prior to procurement. Contact [email protected] or +86 18359268345 for availability and lead time confirmation.