FANUC LR Mate 200iD/4S vs Epson C4: 4 kg Robot Comparison
The FANUC LR Mate 200iD/4S and the Epson C4 are compact 4 kg six-axis robots listed only $500 apart. The C4 reaches 600 mm, about 50 mm further, and lists a 0.37 s cycle time. The LR Mate 200iD/4S repeats to ±0.01 mm, weighs 20 kg and is rated IP67.
Quick verdict. The FANUC LR Mate 200iD/4S is the better choice for precision, wet or dusty cells and lighter installations, with ±0.01 mm and IP67. The Epson C4 is the better choice for fast benchtop assembly, cleanroom electronics and slightly longer reach.
LR Mate 200iD/4S and C4 at a glance
The FANUC LR Mate 200iD/4S carries 4 kg over 550 mm with six axes, repeats to ±0.01 mm, weighs 20 kg, is rated IP67 and runs on the R-30iB Plus or R-30iB Mate Plus controller.
The Epson C4 carries 4 kg (1 kg rated) over 600 mm to the wrist center, repeats to ±0.02 mm, weighs 27 kg and lists a 0.37 s cycle time on the RC700A controller. Epson lists no IP rating for the standard C4 and offers an ISO Class 3 clean and ESD version.
Main specification comparison
Specification | FANUC LR Mate 200iD/4S | Epson C4 |
Brand | FANUC | Epson |
Listed price | $16,500 | $16,000 |
Payload | 4 kg | 4 kg |
Reach | 550 mm | 600 mm |
Repeatability | ±0.01 mm | ±0.020 mm |
Axes | 6 | 6 |
Speed | J1 460°/s; J2 460°/s; J3 520°/s; J4 560°/s; J5 560°/s; J6 900°/s | 0.37 s standard cycle time |
Arm weight | 20 kg | 27 kg |
IP rating | IP67 | Not specified |
Controller | R-30iB Mate Plus | Epson RC700-A |
Price comparison
FANUC LR Mate 200iD/4S: listed from $16,500
Epson C4: listed from $16,000
Difference: $500
The two are within about 3% of each other
Reach and precision
The C4 reaches 600 mm to the wrist center, about 50 mm beyond the 550 mm of the LR Mate 200iD/4S. FANUC publishes ±0.01 mm against ±0.02 mm from Epson. Both suit small-part assembly; the FANUC holds slightly tighter positions.
Protection and environment
FANUC rates the LR Mate 200iD/4S IP67, so it can work near coolant and washdown. Epson lists no IP rating for the standard C4 but offers an ISO Class 3 clean and ESD version for electronics. The environment usually decides between these two.
Weight and speed
The LR Mate 200iD/4S weighs 20 kg, 7 kg less than the 27 kg C4. Epson publishes a 0.37 s standard cycle time for the C4; FANUC publishes joint speeds up to 900°/s on J6 for the LR Mate 200iD/4S.
Best applications for the LR Mate 200iD/4S
Small-part machine tending
Wet or dusty cells
Precision inspection
Best applications for the Epson C4
Fast benchtop assembly
Cleanroom electronics
Small-part handling
LR Mate 200iD/4S advantages
±0.01 mm repeatability
IP67 protection
20 kg arm
LR Mate 200iD/4S limitations
550 mm reach
Epson C4 advantages
600 mm reach
0.37 s cycle time
ISO Class 3 version
Epson C4 limitations
No IP rating listed for the standard model
27 kg arm
Final verdict
Choose the FANUC LR Mate 200iD/4S for precision and harsh environments. Choose the Epson C4 for fast cleanroom assembly.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC LR Mate 200iD/4S or the Epson C4?
The C4 is listed from $16,000 and the LR Mate 200iD/4S from $16,500, a difference of $500.
Which robot is more precise?
The LR Mate 200iD/4S publishes ±0.01 mm and the C4 ±0.02 mm.
Which robot has the longer reach?
The C4 reaches 600 mm to the wrist center; the LR Mate 200iD/4S 550 mm.
How heavy are they?
The LR Mate 200iD/4S weighs 20 kg; the C4 27 kg.
What IP ratings do they have?
The LR Mate 200iD/4S is IP67; Epson lists no IP rating for the standard C4 and offers an ISO Class 3 cleanroom version.
Which robot should I buy?
Choose the LR Mate 200iD/4S for precision and harsh environments. Choose the C4 for cleanroom assembly.
