ABB IRB66003HAC021541-001

Technical Dossier

Product Details And Specifications

ABB IRB 6600 Series Technical Notes

The Evolution of IRB 6600 Architecture

The IRB 6600 platform was introduced in the early 2000s as a successor to ABB's IRB 6400 series, addressing the demand for higher payload density and improved path accuracy in heavy manufacturing. The original IRB 6600-175/2.55 established the baseline kinematic structure: a 6-axis serial-link manipulator with a hollow wrist design to route process media (welding cables, paint hoses, sensor harnesses) internally, reducing external cable wear in high-cycle applications.

Subsequent variants introduced the IRB 6600-500/2.55 for foundry and press-tending duties, incorporating IP67-rated axis seals and a corrosion-resistant surface treatment (Foundry Plus 2 option). The IRB 6650S variant extended the series into shelf-mounted and inverted configurations, expanding the usable work envelope without increasing floor footprint — a critical constraint in brownfield plant retrofits.

The IRC5 controller transition (circa 2004–2006) unified the motion control architecture across the IRB 6600 family, introducing RAPID programming language enhancements, SafeMove functional safety modules, and Ethernet-based fieldbus integration (DeviceNet, PROFIBUS, EtherNet/IP). This transition created a compatibility boundary: pre-IRC5 (S4C+) drive units and I/O modules are not interchangeable with IRC5 hardware without a full controller migration. Sourcing teams must verify controller generation before ordering replacement modules.

As of 2026, the IRB 6600 series is in the mature/end-of-active-production phase, with ABB having transitioned primary development resources to the IRB 6700 and IRB 6790 platforms. However, the installed base remains substantial, and ABB's Extended Lifecycle Support (ELS) program covers critical spare parts through at least 2030. Third-party MRO suppliers such as DriveKNMS provide an additional sourcing layer for obsolete and long-lead-time components.

IRB 6600 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the ABB IRB 6600 ecosystem, classified by functional category. All part numbers reference ABB's standard HAC (Hardware Article Code) nomenclature.

Mechanical & Structural Assemblies

• IRB66003HAC021541-001: Complete robot arm mechanical unit, IRB 6600-175/2.55, standard configuration, IRC5-compatible
• 3HAC025338-001: Lower arm assembly, IRB 6600/6650, includes axis 2–3 gearbox interface flanges
• 3HAC025339-001: Upper arm assembly, IRB 6600, hollow wrist variant, axis 4–6 housing
• 3HAC021452-001: Wrist unit complete, IRB 6600-175, axes 4/5/6, IP67 rated
• 3HAC026510-001: Balancing cylinder assembly, IRB 6600, nitrogen-charged, axis 2 counterbalance

Drive & Motor Units

• 3HAC17484-1: Axis 1 drive motor, IRB 6600, 3-phase AC servo, 11 kW continuous
• 3HAC17484-2: Axis 2 drive motor, IRB 6600, 3-phase AC servo, 15 kW continuous
• 3HAC17484-3: Axis 3 drive motor, IRB 6600, 3-phase AC servo, 11 kW continuous
• 3HAC025562-001: Axis 4/5/6 wrist motor set, IRB 6600, matched trio for wrist kinematics
• 3HAC026254-001: Drive unit DSQC 661, IRC5 main drive module, 400 V AC input

Controller & I/O Modules (IRC5)

• 3HAC025917-001: IRC5 main computer unit DSQC 639, CPU board, RobotWare 5.x/6.x
• 3HAC026254-002: DSQC 662 drive unit, axis computer interface, IRC5 single cabinet
• 3HAC025338-003: DSQC 643 I/O module, 16 DI / 16 DO, 24 V DC, DeviceNet node
• 3HAC025917-003: DSQC 652 digital I/O board, 16 DI / 16 DO, IRC5 panel-mount
• 3HAC026510-003: DSQC 679 teach pendant (FlexPendant), IRC5, color touchscreen, 10 m cable

Gearboxes & Transmission

• 3HAC021452-003: Axis 1 gearbox, IRB 6600, Nabtesco RV series, ratio 1:105
• 3HAC025338-005: Axis 2 gearbox, IRB 6600, Nabtesco RV series, ratio 1:128
• 3HAC025339-005: Axis 3 gearbox, IRB 6600, Nabtesco RV series, ratio 1:100

Power Supply & Safety

• 3HAC025917-005: IRC5 power supply unit DSQC 661, 24 V DC regulated, 10 A
• 3HAC026254-005: SafeMove safety module DSQC 647, IRC5, EN ISO 13849-1 PLd

Quality Control for the IRB 6600 Range

The IRB 6600's mechanical complexity — six-axis serial kinematics, hollow wrist routing, and high-torque gearbox interfaces — requires a structured incoming inspection protocol that goes beyond standard electrical continuity checks.