ABB IRB4600 Balancing Device 3HAC034535-001/002/003/004 | Replacement, Equivalent & Selection Guide
The ABB IRB4600 Balancing Device (3HAC034535-001 / 002 / 003 / 004) is a critical mechanical component used in ABB IRB4600 series industrial robots to counterbalance the weight of the upper arm, reducing motor load and enabling precise, energy-efficient motion. Konmask.com supplies genuine OEM units and verified compatible equivalents for MRO, system integration, and production-line maintenance.
Technical Specifications
- Part Numbers: 3HAC034535-001 / 3HAC034535-002 / 3HAC034535-003 / 3HAC034535-004
- Compatible Robot Series: ABB IRB4600 (all variants: IRB4600-20/2.50, IRB4600-40/2.55, IRB4600-45/2.05, IRB4600-60/2.05)
- Component Type: Mechanical Balancing Device (spring/gas-spring counterbalance unit)
- Mounting Position: Axis 2 upper arm counterbalance
- OEM Manufacturer: ABB Robotics
- Condition: New OEM / Refurbished (specify on inquiry)
- Warranty: 12 months
Compatible Replacement & Equivalent Models
The four sub-variants (001–004) correspond to different payload/reach configurations of the IRB4600 platform. Cross-reference guide:
- 3HAC034535-001 — IRB4600-20/2.50 standard configuration
- 3HAC034535-002 — IRB4600-40/2.55 high-payload configuration
- 3HAC034535-003 — IRB4600-45/2.05 compact-reach variant
- 3HAC034535-004 — IRB4600-60/2.05 heavy-duty variant
Third-party compatible equivalents may be available for cost-sensitive MRO applications. Contact our engineering team to confirm interchangeability before ordering.
Why Choose the Original Model
- Exact OEM geometry ensures correct preload force and axis-2 balance ratio
- Certified to ABB RobotWare mechanical tolerances — no recalibration required after swap
- Maintains original IP54 / IP67 (option) protection class of the robot cell
- Traceable batch documentation available for ISO-certified production lines
- Reduces risk of axis-2 motor overload faults (error code 50296 / 50297)
Typical Applications
- Automotive body welding and assembly lines
- Machine tending and press-to-press transfer
- Palletizing and material handling (up to 60 kg payload)
- Arc welding and cutting cells
- Foundry and harsh-environment automation
System Compatibility
- Controller: ABB IRC5 (single cabinet & dual cabinet)
- RobotWare: 5.x / 6.x compatible
- Robot Generation: IRB4600 (2009–present production)
- Not compatible with: IRB4400, IRB4450, IRB6600 — different balancing geometry
Selection Guide
Use the table below to select the correct part number for your IRB4600 variant:
- Identify your robot’s type plate (located on the base) — note the payload and reach designation (e.g., 40/2.55)
- Match to the sub-variant table above (001–004)
- If your robot has been field-modified or re-rated, contact us with the serial number for confirmation
- For multi-robot orders (>3 units), request a volume quotation via support@konmask.com
Quality Assurance & Sourcing
- All units sourced from ABB-authorized distribution channels or certified refurbishers
- Pre-shipment inspection: dimensional check, spring-force verification, surface integrity
- Packaging: original ABB carton or equivalent anti-static/foam-protected export packaging
- Export documentation: commercial invoice, packing list, COO certificate available on request
How to Order
- Confirm your IRB4600 variant (payload/reach from type plate)
- Select the correct sub-part number (3HAC034535-001 through -004)
- Add to cart or contact support@konmask.com for a formal quotation
- Lead time: in-stock units ship within 3–5 business days; ex-stock orders 2–4 weeks
- Payment: T/T, PayPal, credit card accepted; LC available for orders >USD 5,000
Replacement & Compatibility FAQ
Q: Can I use 3HAC034535-002 in place of 3HAC034535-001?
A: Not recommended without engineering review — the preload force differs between payload variants. Contact us for a compatibility assessment.
Q: Is a third-party balancing device safe for my IRB4600?
A: Third-party units may work but can affect axis-2 calibration and motor load. We recommend OEM for production-critical robots and can advise on verified alternatives for MRO budgets.
Q: Do I need to recalibrate after replacing the balancing device?
A: Yes — axis-2 fine calibration (using the ABB calibration pendulum or CalibWare) is required after any balancing device replacement.
Q: What is the typical service life?
A: ABB recommends inspection at 20,000 operating hours; replacement is typically required at 40,000–50,000 hours depending on duty cycle.
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