ABB IRB6700 3HAC059655-002 Wrist Unit – Obsolete IRB6700 Series Spare Part

Technical Dossier

Product Details And Specifications

ABB IRB6700 3HAC059655-002 Wrist Unit – Obsolete IRB6700 Series Spare Part

When the wrist unit on an ABB IRB6700 fails, the robot stops. Not slows — stops. In automotive body shops, foundries, and heavy-payload assembly lines where the IRB6700 operates, an unplanned shutdown does not cost hours. It costs production schedules, penalty clauses, and in many cases, the forced evaluation of a full robot replacement program. A new IRB6700 cell, including integration, reprogramming, and commissioning, routinely exceeds USD 250,000. The wrist unit — part numbers 3HAC059655-002, 3HAC048145-002, and 3HAC048145-004 — is the mechanical interface between the robot arm and the end-of-arm tooling. It is not a commodity component. It is a precision-machined, load-bearing assembly that ABB no longer manufactures in volume for the aftermarket. DriveKNMS holds RFQ-reviewed sourcing status of this assembly. This page exists because procurement teams searching for this part at 2 AM before a Monday morning shift restart need a direct answer, not a lead form.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters specific to internal servo wiring harnesses are not published here. Verified documentation is provided upon confirmed order inquiry.

Solving the Discontinued Hardware Crisis

The ABB IRB6700 entered service in 2015 and became the dominant heavy-payload robot in automotive and general industry through the late 2010s. Thousands of units remain in active production globally. ABB's standard product lifecycle policy moves components to "RFQ availability review" and then "end-of-life" status on a rolling basis as newer platforms — IRC5 controller updates, IRB6700 successor variants — absorb engineering resources. The wrist unit is among the first mechanical assemblies to exit the standard spare parts catalog because its precision tolerances require dedicated tooling to manufacture.

For plant managers operating IRB6700 cells, this creates a specific risk: the robot itself has 10–15 years of productive life remaining, but the supply chain for its critical wear components is contracting. A wrist unit failure without a spare on hand means one of three outcomes — an extended production halt while sourcing, an emergency rebuild at premium cost, or a premature capital expenditure on robot replacement. None of these outcomes is acceptable when the underlying robot is mechanically sound.

Condition & Reliability Assurance

Obsolete mechanical assemblies carry age-related risks that new production parts do not. Our five-step inspection protocol addresses the failure modes specific to wrist units that have been in storage or removed from service:

Step 1 – Visual and Structural Inspection: External housing examined for impact damage, casting cracks, and bearing race wear. Units with structural compromise are rejected.

Step 2 – Gear Train Assessment: Internal gear mesh checked for backlash beyond ABB tolerance specifications. Abnormal wear patterns are documented and disclosed.

Step 3 – Seal and Lubrication Verification: Grease nipple condition and seal integrity checked. Dried or contaminated lubricant is identified; units are re-greased to ABB specification where applicable.

Step 4 – Connector and Harness Inspection: Internal wiring harness connectors examined for pin corrosion, fretting, and insulation degradation — a common failure point in units stored in humid environments.

Step 5 – Documentation Cross-Check: Part number markings verified against ABB documentation. Cross-reference numbers 3HAC048145-002 and 3HAC048145-004 confirmed against primary assembly 3HAC059655-002.

Condition grade (New Surplus, Refurbished, or Used-Tested) is stated explicitly on every quotation. No unit ships without a condition declaration.

Key Features for System Maintenance

The 3HAC059655-002 wrist unit is a direct mechanical replacement for the original factory-installed assembly. Installation does not require robot reprogramming, controller reconfiguration, or modification of existing tool center point (TCP) calibration data — provided the replacement unit is the correct revision for the robot's build date. This is a drop-in replacement in the mechanical sense: bolt pattern, flange dimensions, and axis interface geometry are identical to the original.

Can you source other IRB6700 spare parts?
Yes. DriveKNMS specializes in hard-to-find and obsolete parts across ABB robotics, Siemens drives, Fanuc CNC, and related industrial automation platforms. Submit your full parts list for a consolidated quotation.