FANUC R-1000iA/100F vs ABB IRB 5720: 100 kg Robot Comparison
Updated: 10 hours ago
IN A NUTSHELL
🔎 THE KEY DIFFERENCE This comparison includes family-level ranges: FANUC R-1000iA/100F lists 100 kg and 2230 mm, while ABB IRB 5720 lists 90–180 kg and 2600–3000 mm. Select an exact variant; maximum payload and maximum reach from different versions cannot be combined. |
→ CONSIDER FANUC R-1000iA/100F Consider it when its named configuration already meets the actual load and workspace requirements. This article compares 100 kg with a published reach of 2230 mm; include the gripper and part in the load. |
→ CONSIDER ABB IRB 5720 Consider it when an exact variant in this family meets the complete tool load and required workspace. This article compares 90–180 kg with a published reach of 2600–3000 mm; include the gripper and part in the load. |
💡 THE TAKEAWAY Choose exact order codes before comparing capacity or price. Confirm the selected variant’s payload and reach together, then validate the real tool, movement path and controls against the same acceptance test. |
The FANUC R-1000iA/100F and the ABB IRB 5720 both handle around 100 kg. The R-1000iA/100F is a compact arm with ±0.03 mm repeatability. The IRB 5720 reaches further, offers versions up to 180 kg and costs about 15% less.
Quick verdict. The ABB IRB 5720 is the better choice for heavier parts and larger cells, with 90 to 180 kg versions, 2600 or 3000 mm reach and a listed price $13,000 lower. The FANUC R-1000iA/100F is the better choice for compact cells that need tight repeatability at 100 kg.
R-1000iA/100F and IRB 5720 at a glance
The FANUC R-1000iA/100F carries 100 kg over 2230 mm, repeats to ±0.03 mm, weighs 665 kg and runs on the R-30iB Plus or R-30iB Mate Plus controller.
The ABB IRB 5720 carries 90 to 180 kg over 2600 or 3000 mm, repeats to ±0.04–0.05 mm and runs on OmniCore.
Main specification comparison
Specification | FANUC R-1000iA/100F | ABB IRB 5720 |
Brand | FANUC | ABB |
Listed price | $88,000 | $75,000 |
Payload | 100 kg | 90–180 kg |
Reach | 2230 mm | 2600–3000 mm |
Repeatability | ±0.03 mm | ±0.04–0.05 mm |
Axes | 6 | 6 |
Arm weight | 665 kg | Not specified |
Controller | R-30iB Plus (A- or B-cabinet) or R-30iB Mate Plus | ABB OmniCore |
Price comparison

FANUC R-1000iA/100F: listed from $88,000
ABB IRB 5720: listed from $75,000
Difference: $13,000
The IRB 5720 costs roughly 15% less
Payload and reach

The IRB 5720 comes in versions from 90 to 180 kg with 2600 or 3000 mm reach, so it covers heavy grippers, larger parts and wide cells. The R-1000iA/100F stays at 100 kg over 2230 mm, which suits compact handling, assembly and spot welding stations.
Precision and applications
FANUC publishes ±0.03 mm repeatability for the R-1000iA/100F, against ±0.04 to ±0.05 mm for the IRB 5720. FANUC lists handling, assembly, sealing and spot welding. ABB designs the IRB 5720 for material handling, machine tending and high-precision assembly in EV battery production and automotive.
Installation and controllers

The R-1000iA/100F weighs 665 kg, mounts on the floor or upside-down and runs on the R-30iB Plus or R-30iB Mate Plus. ABB runs the IRB 5720 on OmniCore.
Best applications for the R-1000iA/100F
Compact heavy handling
Spot welding
Assembly and sealing
Best applications for the ABB IRB 5720

EV battery assembly
Machine tending up to 180 kg
Automotive handling
R-1000iA/100F advantages
±0.03 mm repeatability
Compact arm
Spot welding capability
R-1000iA/100F limitations
About $13,000 higher listed price
2230 mm reach
ABB IRB 5720 advantages
About 15% lower listed price
90 to 180 kg versions
Up to 3000 mm reach
ABB IRB 5720 limitations
±0.04–0.05 mm repeatability
Final verdict
Choose the ABB IRB 5720 for payload range, reach and price. Choose the FANUC R-1000iA/100F for compact precise cells.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC R-1000iA/100F or the ABB IRB 5720?
The IRB 5720 is listed from $75,000 and the R-1000iA/100F from $88,000, a difference of $13,000.
Which robot carries more?
The IRB 5720 comes in versions up to 180 kg; the R-1000iA/100F carries 100 kg.
Which robot has the longer reach?
The IRB 5720 reaches 2600 or 3000 mm; the R-1000iA/100F 2230 mm.
Which robot is more precise?
The R-1000iA/100F publishes ±0.03 mm and the IRB 5720 ±0.04 to ±0.05 mm.
Can the R-1000iA/100F do spot welding?
Yes. FANUC lists spot welding among its applications.
Which robot should I buy?
Choose the IRB 5720 for range and price. Choose the R-1000iA/100F for compact precise cells.



