ABB 3HAC055437-003 IRB 6700 Rotary AC Servo Motor with Brake | Replacement, Equivalent & Selection Guide
The ABB 3HAC055437-003 is a genuine OEM rotary AC servo motor with integrated brake, designed exclusively for the ABB IRB 6700 series industrial robots. Cross-referenced with 3HAC055699-004 (motor with pinion assembly), this unit drives axis motion with high torque density and precision feedback, making it a critical component in heavy-payload robotic automation lines.
Technical Specifications
- Part Number: 3HAC055437-003
- Cross Reference / Related PN: 3HAC055699-004 (Rot. AC Motor incl. pinion)
- Compatible Robot Series: ABB IRB 6700 (all variants: /150, /200, /235, /300)
- Motor Type: Rotary AC Servo Motor with Integrated Brake
- Manufacturer: ABB Robotics
- Application Axis: Axis 1 / Axis 2 (verify with robot BOM)
- Brake Type: Spring-applied electromagnetic holding brake
- Feedback: Resolver / Encoder (OEM integrated)
- Condition: New OEM / Refurbished Available
- Warranty: 12 months
Compatible Replacement & Equivalent Models
The following models are functionally compatible or direct replacements for the ABB 3HAC055437-003. Always verify mounting dimensions and connector pinout before substitution:
- 3HAC055699-004 — ABB OEM variant with pinion; direct mechanical equivalent
- 3HAC055437-001 / -002 — Earlier revision variants; confirm firmware compatibility
- Rexroth MSK series — Third-party equivalent (requires adapter bracket and encoder reconfiguration)
- Fanuc αiF series — Cross-brand alternative for retrofit projects (consult engineering)
⚠ Note: Third-party replacements may require drive parameter re-tuning. Konmask recommends OEM parts for warranty-critical installations.
Why Choose the Original Model
- ✅ Plug-and-play compatibility — No parameter changes required with ABB IRC5 / OmniCore controllers
- ✅ Certified thermal & vibration ratings matched to IRB 6700 duty cycles
- ✅ Integrated brake pre-calibrated to ABB torque specifications
- ✅ Full traceability — Serial number registered in ABB service database
- ✅ Longer MTBF vs. aftermarket alternatives in continuous 3-shift operations
Typical Applications
- Automotive body welding and assembly lines (IRB 6700/200 & /235)
- Heavy-payload palletizing and material handling
- Foundry and press-tending robotics
- Aerospace structural component machining cells
- Large-format arc welding and cutting systems
System Compatibility
- Controller: ABB IRC5 (single & dual cabinet), OmniCore C90XT
- Drive Unit: ABB DSQC series axis drive modules
- Robot Models: IRB 6700-150/2.85, IRB 6700-200/2.60, IRB 6700-235/2.65, IRB 6700-300/2.70
- Software: RobotWare 6.x / 7.x compatible
Selection Guide
Use the table below to select the correct motor part number for your IRB 6700 variant and axis:
- Axis 1 (Base rotation), IRB 6700 all variants → 3HAC055437-003
- Axis 2 (Lower arm), IRB 6700-200 & /235 → 3HAC055437-003 or 3HAC055699-004 (with pinion)
- Axis 3 and above → Different part numbers apply — contact Konmask for BOM verification
💡 Tip: Always quote your robot serial number when ordering to ensure exact axis-specific compatibility. Konmask’s engineering team can cross-check your ABB service BOM at no charge.
Quality Assurance & Sourcing
- All units sourced from authorized ABB distributors or certified refurbishment centers
- Pre-shipment inspection: insulation resistance, brake torque, encoder signal integrity
- Packaging: anti-static foam, moisture-barrier bag, wooden export crate
- Certificates available: CE, RoHS, ABB OEM Certificate of Conformity
- Lead time: In-stock units ship within 2 business days; special orders 2–4 weeks
How to Order
- Confirm your robot model and serial number
- Identify the axis requiring replacement (refer to ABB service manual)
- Contact Konmask with part number 3HAC055437-003 and quantity
- Receive quotation within 24 hours with lead time confirmation
- Payment via T/T, PayPal, or trade credit (approved accounts)
📧 Email: support@konmask.com | 📞 Phone/WhatsApp: +0086 19859288691
Replacement & Compatibility FAQ
Q: Can 3HAC055699-004 replace 3HAC055437-003 directly?
A: Yes, 3HAC055699-004 includes the pinion assembly. If your application requires the pinion, use -004; if the pinion is installed separately, use -003.
Q: Is this motor compatible with older IRB 6600 robots?
A: No. The IRB 6600 uses a different motor frame and connector. Contact us for the correct IRB 6600 part number.
Q: Do you supply refurbished units?
A: Yes. Refurbished units are available at reduced cost with a 6-month warranty and full test report.
Q: Can I use a third-party servo motor as a drop-in replacement?
A: Mechanically possible with adapters, but ABB IRC5 drive parameters must be re-tuned. We recommend OEM for production-critical robots.
Q: What is the typical failure mode for this motor?
A: Most common failures are bearing wear, brake pad degradation, and encoder signal loss — all detectable via ABB FlexPendant error codes (e.g., 50024, 50025).
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Contact: support@konmask.com | +0086 19859288691
