FANUC M-710iC/20L vs Yaskawa AR3120: 20 kg Long-Reach Robot Comparison
Updated: 10 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE Both are compared at 20 kg. Yaskawa Motoman AR3120 has the longer stated reach, which may help reach separated fixtures; it does not guarantee access at every tool angle. |
→ CONSIDER FANUC M-710iC/20L Consider it when its stated load and reach already cover your task and its controls fit your equipment. This article compares 20 kg with a published reach of 3110 mm; include the gripper and part in the load. |
→ CONSIDER Yaskawa Motoman AR3120 Consider it when extra reach is useful while the compared load capacity is the same. This article compares 20 kg with a published reach of 3124 mm; include the gripper and part in the load. |
💡 THE TAKEAWAY Choose the robot that handles your actual tool and part through the required path, with controls and support your team can use. Compare complete installation quotes, rather than arm-only prices. |
The FANUC M-710iC/20L and the Yaskawa Motoman AR3120 are near twins on paper: 20 kg over about 3.1 m, ±0.06–0.07 mm and about 550 kg of arm. The AR3120 is an arc welding robot listed at well under half the price.
Quick verdict. The Yaskawa AR3120 is the better value for long-reach welding, with the same envelope and a listed price $44,000 lower. The FANUC M-710iC/20L is the better choice for long-reach handling, laser cutting and sealing in FANUC plants.
M-710iC/20L and AR3120 at a glance
The FANUC M-710iC/20L carries 20 kg over 3110 mm, repeats to ±0.06 mm, weighs 540 kg and runs on the R-30iB Plus or R-30iB Mate Plus controller.
The Yaskawa Motoman AR3120 carries 20 kg over 3124 mm, repeats to ±0.07 mm, weighs 560 kg and runs on the YRC1000 controller.
Main specification comparison
Specification | FANUC M-710iC/20L | Yaskawa Motoman AR3120 |
Brand | FANUC | Yaskawa Motoman |
Listed price | $76,000 | $32,000 |
Payload | 20 kg | 20 kg |
Reach | 3110 mm | 3124 mm |
Repeatability | ±0.06 mm | ±0.07 mm |
Axes | 6 | 6 |
Arm weight | 540 kg | 560 kg |
Controller | R-30iB Plus (A- or B-cabinet) or R-30iB Mate Plus | YRC1000 |
Price comparison
FANUC M-710iC/20L: listed from $76,000
Yaskawa AR3120: listed from $32,000
Difference: $44,000
The AR3120 costs roughly 58% less
Same envelope
Both carry 20 kg over about 3.1 m: 3110 mm for FANUC, 3124 mm for Yaskawa. Repeatability is ±0.06 mm and ±0.07 mm. Arm weights are 540 kg and 560 kg. Mechanically, either fits the same large cell.
Process focus
Yaskawa builds the AR3120 as the long-reach member of its AR arc welding series, for large weldments and long seams. FANUC lists the M-710iC/20L for handling, machine tending, assembly, sealing, mold handling and laser cutting.
Installation and controllers
The M-710iC/20L mounts on the floor, upside-down or at an angle on the R-30iB Plus or Mate Plus. The AR3120 installs on the floor, wall, ceiling or tilted and runs on the YRC1000.
Best applications for the M-710iC/20L
Long-reach handling
Laser cutting and sealing
FANUC-standardized lines
Best applications for the Yaskawa AR3120
Welding of large weldments
Long seams
Cutting
M-710iC/20L advantages
±0.06 mm repeatability
Laser cutting capability
M-710iC/20L limitations
About $44,000 higher listed price
Yaskawa AR3120 advantages
About 58% lower listed price
Built for arc welding
Wall and ceiling mounting
Yaskawa AR3120 limitations
±0.07 mm repeatability
Final verdict
Choose the Yaskawa AR3120 for long-reach welding. Choose the FANUC M-710iC/20L for long-reach handling and cutting.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC M-710iC/20L or the Yaskawa AR3120?
The AR3120 is listed from $32,000 and the M-710iC/20L from $76,000, a difference of $44,000.
Do both carry 20 kg over about 3.1 m?
Yes: 3110 mm for the FANUC and 3124 mm for the Yaskawa.
Which robot is more precise?
The M-710iC/20L publishes ±0.06 mm and the AR3120 ±0.07 mm.
Which robot is built for welding?
The AR3120.
How heavy are they?
The M-710iC/20L weighs 540 kg; the AR3120 560 kg.
Which robot should I buy?
Choose the AR3120 for welding. Choose the M-710iC/20L for handling and cutting.
