FANUC ARC Mate 120iD/12L vs ABB IRB 2600: Long-Reach Welding Robot Comparison
The FANUC ARC Mate 120iD/12L and the ABB IRB 2600 both carry 12 kg. The ARC Mate 120iD/12L is a long-reach welder that covers 2272 mm. The IRB 2600 offers 1650 or 1850 mm reach, a 20 kg version and a listed price about 14% lower.
Quick verdict. The FANUC ARC Mate 120iD/12L is the better choice for welding large parts, with 2272 mm reach, internal torch cabling and ±0.03 mm repeatability. The ABB IRB 2600 is the better choice for mixed handling and welding within about 1.8 m, with a 20 kg option and a listed price $8,000 lower.
ARC Mate 120iD/12L and IRB 2600 at a glance
The FANUC ARC Mate 120iD/12L carries 12 kg over 2272 mm, repeats to ±0.03 mm, weighs 250 kg and runs on the R-30iB Plus or R-30iB Mate Plus controller.
The ABB IRB 2600 carries 12 or 20 kg over 1650 or 1850 mm, repeats to ±0.04 mm and runs on IRC5 or OmniCore.
Main specification comparison
Specification | FANUC ARC Mate 120iD/12L | ABB IRB 2600 |
Brand | FANUC | ABB |
Listed price | $58,000 | $50,000 |
Payload | 12 kg | 12–20 kg |
Reach | 2272 mm | 1650–1850 mm |
Repeatability | ±0.03 mm | ±0.04 mm |
Axes | 6 | 6 |
Arm weight | 250 kg | Not specified |
Controller | R-30iB Plus (A- or B-cabinet) or R-30iB Mate Plus | ABB IRC5 or OmniCore |
Price comparison

FANUC ARC Mate 120iD/12L: listed from $58,000
ABB IRB 2600: listed from $50,000
Difference: $8,000
The IRB 2600 costs roughly 14% less
Reach and part size

The ARC Mate 120iD/12L reaches 2272 mm, about 420 mm beyond the longest IRB 2600. That covers long weld seams on frames, chassis parts and large fixtures from one position, without a track.
Welding design and precision
ARC Mate arms route the torch cable inside the arm and connect to a range of welding power supplies. FANUC publishes ±0.03 mm repeatability for the ARC Mate 120iD/12L, against ±0.04 mm for the IRB 2600.
Payload and installation

The IRB 2600 also comes in a 20 kg version, which suits heavier grippers in handling cells. The ARC Mate 120iD/12L weighs 250 kg and mounts on the floor, upside-down or at an angle; ABB runs the IRB 2600 on IRC5 or OmniCore.
Best applications for the ARC Mate 120iD/12L
Welding of large parts
Long weld seams
Plants standardized on FANUC
Best applications for the ABB IRB 2600

Machine tending up to 20 kg
Material handling
Mixed welding and handling cells
ARC Mate 120iD/12L advantages
2272 mm reach
Internal torch cabling
±0.03 mm repeatability
ARC Mate 120iD/12L limitations
About $8,000 higher listed price
250 kg arm
ABB IRB 2600 advantages
About 14% lower listed price
20 kg version available
ABB IRB 2600 limitations
Up to 1850 mm reach
Final verdict
Choose the FANUC ARC Mate 120iD/12L for welding large parts. Choose the ABB IRB 2600 for mixed cells within 1.8 m at a lower price.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC ARC Mate 120iD/12L or the ABB IRB 2600?
The IRB 2600 is listed from $50,000 and the ARC Mate 120iD/12L from $58,000, a difference of $8,000.
Which robot has the longer reach?
The ARC Mate 120iD/12L reaches 2272 mm; the IRB 2600 1650 or 1850 mm.
Do both robots carry 12 kg?
Yes, and the IRB 2600 also comes in a 20 kg version.
Which robot is more precise?
The ARC Mate 120iD/12L publishes ±0.03 mm and the IRB 2600 ±0.04 mm.
How heavy is the ARC Mate 120iD/12L?
Its mechanical unit weighs 250 kg.
Which robot should I buy?
Choose the ARC Mate 120iD/12L for large welded parts. Choose the IRB 2600 for mixed cells.



