FANUC ARC Mate 120iD vs Kawasaki RS025N: 25 kg Robot Comparison
The FANUC ARC Mate 120iD and the Kawasaki RS025N both carry 25 kg over about 1.85 m. The ARC Mate 120iD is FANUC's 25 kg welding arm and repeats to ±0.02 mm. The RS025N is a general-purpose robot repeating to ±0.04 mm, listed about 19% lower.
Quick verdict. The Kawasaki RS025N is the better value for 25 kg handling and general tasks, with slightly longer reach and a listed price $11,400 lower. The FANUC ARC Mate 120iD is the better choice for heavy-torch welding and precise work, with ±0.02 mm and internal cabling.
ARC Mate 120iD and RS025N at a glance
The FANUC ARC Mate 120iD carries 25 kg over 1831 mm, repeats to ±0.02 mm, weighs 250 kg and runs on the R-30iB Plus or R-30iB Mate Plus controller. FANUC rates the body IP54 and the wrist and J3 arm IP67.
The Kawasaki RS025N carries 25 kg over 1885 mm, repeats to ±0.04 mm and weighs 270 kg according to Kawasaki's RS series brochure. It runs on the F02 controller. The brochure does not clearly assign an IP rating to the RS025N.
Main specification comparison
Specification | FANUC ARC Mate 120iD | Kawasaki RS025N |
Brand | FANUC | Kawasaki |
Listed price | $60,000 | $48,600 |
Payload | 25 kg | 25 kg |
Reach | 1831 mm | 1885 mm |
Repeatability | ±0.02 mm | ±0.04 mm |
Axes | 6 | 6 |
Speed | J1 210°/s; J2 210°/s; J3 265°/s; J4 420°/s; J5 420°/s; J6 720°/s | Not specified |
Arm weight | 250 kg | 270 kg |
IP rating | IP54 body; IP67 wrist and J3 arm | Not specified |
Controller | R-30iB Plus (A- or B-cabinet) or R-30iB Mate Plus | F02 |
Price comparison
FANUC ARC Mate 120iD: listed from $60,000
Kawasaki RS025N: listed from $48,600
Difference: $11,400
The RS025N costs roughly 19% less
Reach and precision
The RS025N reaches 1885 mm, about 54 mm beyond the 1831 mm of the ARC Mate 120iD. FANUC publishes ±0.02 mm against ±0.04 mm from Kawasaki, which favors the FANUC for welding seams and precise placement.
Welding arm against general-purpose arm
The ARC Mate 120iD routes torch cables through its hollow upper arm and wrist, which suits heavy push-pull torches and tandem welding. The RS025N is a general-purpose arm for handling, palletizing, machine tending and assembly in the 25 kg class.
Weight and protection
The arms weigh 250 kg and 270 kg. FANUC rates the ARC Mate 120iD wrist and J3 arm IP67. Kawasaki's brochure does not clearly assign an IP rating to the RS025N, so confirm it for wet or dusty cells.
Best applications for the ARC Mate 120iD
Heavy-torch arc welding
Precise 25 kg handling
FANUC-standard plants
Best applications for the Kawasaki RS025N
25 kg material handling
Machine tending
Kawasaki-standard plants
ARC Mate 120iD advantages
±0.02 mm repeatability
Welding-ready design
IP67 wrist
ARC Mate 120iD limitations
About $11,400 higher listed price
Kawasaki RS025N advantages
About 19% lower listed price
1885 mm reach
Kawasaki RS025N limitations
±0.04 mm repeatability
IP rating not confirmed
Final verdict
Choose the Kawasaki RS025N for 25 kg handling value. Choose the FANUC ARC Mate 120iD for welding and precision.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC ARC Mate 120iD or the Kawasaki RS025N?
The RS025N is listed from $48,600 and the ARC Mate 120iD from $60,000, a difference of $11,400.
Which robot is more precise?
The ARC Mate 120iD publishes ±0.02 mm and the RS025N ±0.04 mm.
Which robot has the longer reach?
The RS025N reaches 1885 mm; the ARC Mate 120iD 1831 mm.
How heavy are they?
The ARC Mate 120iD weighs 250 kg; the RS025N 270 kg.
Which robot is better for welding?
The ARC Mate 120iD, which FANUC designs for arc welding with internal torch cabling.
Which robot should I buy?
Choose the RS025N for handling value. Choose the ARC Mate 120iD for welding.
