FANUC R-2000iC/220U vs ABB IRB 6790: Heavy Robot Comparison
The FANUC R-2000iC/220U and the ABB IRB 6790 carry 205 to 235 kg at similar prices, but they install and work differently. The R-2000iC/220U mounts upside-down and works down into dense cells. The IRB 6790 is a floor robot with IP69 and Foundry Prime 3 protection for parts washing, listed about 5% lower.
Quick verdict. The FANUC R-2000iC/220U is the better choice for overhead installation in tight automotive cells. The ABB IRB 6790 is the better choice for washing and deburring castings, with IP69 protection, up to 235 kg and a listed price $5,000 lower.
R-2000iC/220U and IRB 6790 at a glance
The FANUC R-2000iC/220U carries 220 kg over 2518 mm, repeats to ±0.05 mm, weighs 1020 kg and mounts upside-down. It runs on the R-30iB Plus or R-30iB Mate Plus controller.
The ABB IRB 6790 carries 235 kg over 2650 mm or 205 kg over 2800 mm, repeats to ±0.05 mm, mounts on the floor, carries IP69 protection with Foundry Prime 3 and runs on IRC5.
Main specification comparison
Specification | FANUC R-2000iC/220U | ABB IRB 6790 |
Brand | FANUC | ABB |
Listed price | $110,000 | $105,000 |
Payload | 220 kg | 205–235 kg |
Reach | 2518 mm | 2650–2800 mm |
Repeatability | ±0.05 mm | ±0.05 mm |
Axes | 6 | 6 |
Arm weight | 1020 kg | Not specified |
Controller | R-30iB Plus (A- or B-cabinet) or R-30iB Mate Plus | ABB IRC5 |
Price comparison
FANUC R-2000iC/220U: listed from $110,000
ABB IRB 6790: listed from $105,000
Difference: $5,000
The IRB 6790 costs roughly 5% less
Mounting and layout
The R-2000iC/220U hangs upside-down from a gantry or frame, which frees the floor for fixtures, conveyors and operators. The IRB 6790 mounts on the floor inside a washing cell, where it presents castings to high-pressure jets.
Environment and applications
The IRB 6790 is built for high-pressure parts washing and deburring of engine blocks and cylinder heads, with IP69 and Foundry Prime 3 protection. FANUC lists handling, assembly, sealing, spot welding, press-to-press handling and deburring for the R-2000iC/220U.
Payload, reach and precision
The IRB 6790 carries 235 kg over 2650 mm or 205 kg over 2800 mm; the R-2000iC/220U 220 kg over 2518 mm. Both publish ±0.05 mm repeatability. The R-2000iC/220U weighs 1020 kg, so the overhead structure must be designed for it.
Best applications for the R-2000iC/220U
Overhead spot welding
Dense automotive cells
Press-to-press handling
Best applications for the ABB IRB 6790
High-pressure parts washing
Deburring of castings
Wet and harsh environments
R-2000iC/220U advantages
Upside-down mounting saves floor space
Wide process range
R-2000iC/220U limitations
About $5,000 higher listed price
2518 mm reach
ABB IRB 6790 advantages
IP69 and Foundry Prime 3
Up to 235 kg
ABB IRB 6790 limitations
Floor mounting only
Final verdict
Choose the FANUC R-2000iC/220U for overhead installation. Choose the ABB IRB 6790 for parts washing.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC R-2000iC/220U or the ABB IRB 6790?
The IRB 6790 is listed from $105,000 and the R-2000iC/220U from $110,000, a difference of $5,000.
How is the R-2000iC/220U mounted?
It mounts upside-down; the IRB 6790 mounts on the floor.
Which robot is built for washing cells?
The IRB 6790, with IP69 protection and Foundry Prime 3.
Which robot carries more?
The IRB 6790 offers 235 kg; the R-2000iC/220U carries 220 kg.
Which robot is more precise?
Both publish ±0.05 mm.
Which robot should I buy?
Choose the R-2000iC/220U for overhead cells. Choose the IRB 6790 for washing.
