Industrial Robot Counterbalance Solution – ABB 3HAC033372-001 | IRB 6600 / IRB 6650 Series
Where This Product Is Used
The ABB 3HAC033372-001 Balancing Device (cross-reference: 3HAC033363-001 / 3HAC030868-001) is a precision counterbalance spring-cylinder assembly engineered for ABB’s heavy-payload articulated robots. It is deployed across demanding industrial environments including:
- Automotive body-in-white welding lines – compensates gravitational torque on Axis 2 during high-speed spot-welding cycles on IRB 6600 / IRB 6650 cells
- Press-tending & metal stamping – maintains arm stability under 200 kg payload swings, reducing servo motor wear
- Foundry & die-casting – rated for high-temperature ambient conditions typical of aluminum casting extraction
- Palletizing & heavy material handling – sustains consistent counterforce across full Axis 2 range of motion (−60° to +76°)
- Machine tending & CNC loading – extends gearbox service life by offloading static gravitational load from the Axis 2 motor
Technical Specifications
| Part Number (Primary) | 3HAC033372-001 |
| Cross-Reference SKUs | 3HAC033363-001 / 3HAC030868-001 |
| Compatible Robots | ABB IRB 6600, IRB 6650, IRB 6650S |
| Function | Axis 2 gravitational counterbalance (spring-cylinder type) |
| Weight | 420 g (component only) |
| Manufacturer | ABB Robotics |
| Series | IRB 6600 / IRB 6650 Mechanical Spare Parts |
| Condition | New / Surplus New (specify at inquiry) |
| Lead Time | Contact us for real-time stock confirmation |
Why Engineers Specify This Model
- OEM-matched spring preload – factory-calibrated counterforce prevents Axis 2 drift during E-stop and power-off, a critical safety requirement in ISO 10218-1 compliant cells
- Sealed cylinder design – resists weld spatter, coolant mist, and foundry particulate ingress without additional guarding
- Drop-in replacement – identical mounting geometry to original ABB assembly; no shimming or re-calibration of Axis 2 zero-point required
- Reduces servo thermal load – by offloading static gravitational torque, Axis 2 drive module runs cooler, extending MTBF
- Multi-SKU interchangeability – 3HAC033372-001, 3HAC033363-001, and 3HAC030868-001 are functionally interchangeable across IRB 6600 / 6650 variants; confirm robot serial range with our team
Complete System Bill of Materials
For a full Axis 2 balancing device overhaul on IRB 6600 / IRB 6650, engineers typically source:
- 3HAC033372-001 – Balancing Device Assembly (this item)
- 3HAC033363-001 – Balancing Device (alternate revision)
- 3HAC030868-001 – Balancing Device (earlier revision)
- Axis 2 gearbox seal kit (consult ABB service manual section 4.3)
- Locking pin / retaining hardware (per robot-specific BOM)
Contact support@konmask.com for bundled BOM pricing.
Compliance & Industry Standards
- Designed to ABB internal mechanical specification for IRB 6600 / 6650 platform
- Compatible with cells certified to ISO 10218-1:2011 (Robots and robotic devices – Safety requirements)
- Suitable for use in ATEX Zone 2 environments when installed per ABB application manual (verify robot variant)
- RoHS-compliant materials (no restricted substances in spring-cylinder assembly)
Quality Assurance & Sourcing
Konmask.com sources ABB spare parts through authorized distribution channels and verified surplus inventories. Every unit undergoes:
- Visual and dimensional inspection against ABB drawing references
- Label and date-code verification
- Secure anti-static packaging with part number labeling for traceability
Counterfeit-risk mitigation: we do not source from unverified gray-market brokers. All parts ship with a Konmask inspection certificate.
How to Source This Part
- Confirm your robot model and serial number (found on the robot nameplate, Axis 1 base)
- Verify the applicable revision: 3HAC033372-001, 3HAC033363-001, or 3HAC030868-001
- Submit your RFQ to support@konmask.com or call +0086 19859288691
- Receive stock confirmation, lead time, and freight quote within 1 business day
- Place order – we support T/T, PayPal, and trade-term arrangements (EXW / DDP)
Application-Specific FAQ
Q: Are 3HAC033372-001, 3HAC033363-001, and 3HAC030868-001 fully interchangeable?
A: They are functionally interchangeable for most IRB 6600 / 6650 variants, but revision applicability depends on the robot’s manufacturing date range. Share your robot serial number and we will confirm the correct part.
Q: Can this balancing device be replaced without removing the robot from service for more than one shift?
A: Yes. ABB’s service manual estimates 4–6 hours for a trained technician performing an Axis 2 balancing device swap on IRB 6600, including spring pre-tension release and re-installation.
Q: What happens if the balancing device fails in service?
A: A failed balancing device causes increased Axis 2 motor current draw, potential E-stop faults (error code 50204 or similar), and risk of uncontrolled arm drop during power-off. Replace immediately upon detection of spring fatigue or cylinder leakage.
Q: Do you offer exchange / core return programs?
A: Contact us to discuss core exchange options for high-volume customers.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
