ABB 3HAC055437-004 / 3HAC055439-004 – Rotary AC Servo Motor | IRB 6700 Axis Drive Platform
Engineering Background: The ABB IRB 6700 series is ABB Robotics’ flagship heavy-payload articulated robot platform, engineered for high-cycle automotive body-in-white welding, press tending, and large-part material handling. Each axis is driven by a dedicated rotary AC servo motor precisely matched to the kinematic and torque demands of that joint. The 3HAC055437-004 (cross-referenced as 3HAC055439-004) is the OEM-specified axis drive motor for the IRB 6700 family, delivering consistent torque output, thermal stability, and encoder fidelity across hundreds of millions of operating cycles.
Product Positioning: This unit is a direct OEM replacement motor for ABB IRB 6700 robots — the correct part for maintenance engineers performing scheduled motor overhauls, post-collision axis rebuilds, or predictive replacement programs. Sourced through verified ABB-authorized supply chains and inspected prior to shipment by Konmask technical staff.
Complete Technical Specifications
- Part Number: 3HAC055437-004
- Cross Reference: 3HAC055439-004 / IRB 6700 Axis Motor Assembly
- Type: Rotary AC Servo Motor with Integrated Pulse Encoder
- Platform Compatibility: ABB IRB 6700 (all payload variants: 150 / 200 / 235 / 300 / 500 kg)
- Manufacturer: ABB Robotics
- Country of Origin: Sweden (SE)
- Motor Class: Brushless AC Permanent Magnet Servo
- Feedback Device: Integrated resolver / absolute encoder (axis-dependent)
- Insulation Class: F (155 °C rated)
- Protection Rating: IP67 — sealed for wash-down and particulate environments
- Drive Interface: ABB IRC5 / OmniCore controller compatible
- Connector Type: ABB standard multi-pin motor/encoder connector
- Shipping Weight: ~100 kg (including packaging)
- Condition: New OEM / Refurbished OEM (specify at inquiry)
Proven Application Environments
- Automotive Body-in-White: Spot welding, MIG/MAG welding, and sealing on high-cycle press lines requiring >99.5% uptime
- Press Tending & Stamping: Heavy-payload transfer between press stations with precise path repeatability
- Foundry & Die Casting: High-temperature ambient environments where IP67 sealing and Class F insulation are mandatory
- Aerospace Component Handling: Large-part manipulation requiring smooth torque delivery and zero backlash
- Palletizing & Depalletizing: High-speed end-of-line logistics with continuous duty cycles
- Machine Tending: CNC lathe and machining center loading where axis stiffness and repeatability are critical
Engineering Advantages
- OEM Dimensional Fit: Bolt-pattern, shaft diameter, and encoder connector are identical to factory-installed units — zero mechanical adaptation required
- Thermal Management: Class F winding insulation sustains continuous operation in ambient temperatures up to 45 °C without derating
- Encoder Integrity: Factory-calibrated feedback device eliminates the need for axis re-mastering in most replacement scenarios
- Reduced MTTR: Drop-in replacement design cuts mean time to repair versus non-OEM alternatives requiring shimming or adapter plates
- Long Service Life: ABB-grade bearing preload and winding construction validated for multi-million cycle operation
System Architecture & Signal Flow
In the IRB 6700 drive architecture, each axis motor connects to a dedicated Drive Module within the IRC5 or OmniCore controller cabinet. Signal path: Controller CPU → Drive Module → Motor Power Cable → 3HAC055437-004 Motor Windings, with encoder feedback returning via a separate shielded resolver/encoder cable to the Drive Module’s feedback input. The motor’s integrated encoder provides absolute position data, enabling the IRC5 to perform axis calibration and collision detection without external sensors. Replacing this motor with the correct OEM part number preserves closed-loop integrity without requiring controller parameter changes.
Sourcing & Quality Verification
- All units sourced from ABB-authorized distributors or verified OEM surplus channels
- Pre-shipment inspection: visual check, connector integrity, and winding resistance verification
- Serialization and lot traceability documentation available on request
- Packaging: anti-static foam, moisture barrier bag, and rigid outer carton
- Lead time: typically 3–10 business days; expedited options available
Procurement Process
- Submit your robot serial number and axis number via support@konmask.com or the on-page inquiry form
- Konmask technical team confirms part number cross-reference and stock availability within 24 hours
- Formal quotation issued with lead time, shipping terms (EXW / DDP), and payment options
- Order confirmed; unit inspected, documented, and dispatched with full tracking
- Post-delivery technical support available for installation guidance
Technical FAQ
Q: Is 3HAC055437-004 the same as 3HAC055439-004?
A: Yes. Both part numbers refer to the same rotary AC motor assembly for the IRB 6700 platform. ABB occasionally issues revised part numbers for the same physical unit during product lifecycle updates. Always verify against your robot’s spare parts catalog (RobotStudio or ABB Spare Parts Portal) using your robot serial number.
Q: Which IRB 6700 variants does this motor fit?
A: Compatible with the full IRB 6700 family across payload variants (150 / 200 / 235 / 300 / 500 kg). Confirm the specific axis number with Konmask before ordering, as different axes may use different motor frame sizes.
Q: Do I need to re-master the axis after replacement?
A: In most cases, if encoder calibration data is preserved and the new motor’s encoder is factory-set, re-mastering is not required. ABB recommends performing a fine calibration check post-installation using the IRC5 FlexPendant calibration routine.
Q: Can this motor be used with OmniCore controllers?
A: Yes, provided the drive module firmware is compatible. Consult your ABB system integrator or Konmask technical support to confirm OmniCore drive module compatibility for your specific installation.
Q: What warranty is provided?
A: Konmask provides a 90-day functional warranty on all OEM replacement parts. Extended warranty options are available — contact support@konmask.com for details.
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