FANUC LR Mate 200iD/4S vs DENSO VS-050: 4 kg Robot Comparison
The FANUC LR Mate 200iD/4S and the DENSO VS-050 both carry 4 kg with six axes over about half a metre. The LR Mate 200iD/4S reaches 550 mm, repeats to ±0.01 mm, weighs 20 kg and is listed about 45% lower. The VS-050 lists a 0.35 s cycle time and is offered in cleanroom and IP67 versions.
Quick verdict. The FANUC LR Mate 200iD/4S is the better value for small-part assembly and tending, with ±0.01 mm, IP67 as standard and a listed price $13,500 lower. The DENSO VS-050 is the better choice where DENSO's cleanroom variants or RC8 platform are required.
LR Mate 200iD/4S and VS-050 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 DENSO VS-050 carries 4 kg over 505 mm with six axes, repeats to ±0.02 mm, weighs 27 kg and lists a 0.35 s cycle time on the RC8 controller. DENSO offers standard (IP40), dust and splash, ISO cleanroom and IP67 versions.
Main specification comparison
Specification | FANUC LR Mate 200iD/4S | DENSO VS-050 |
Brand | FANUC | DENSO |
Listed price | $16,500 | $30,000 |
Payload | 4 kg | 4 kg |
Reach | 550 mm | 505 mm |
Repeatability | ±0.01 mm | ±0.02 mm |
Axes | 6 | 6 |
Speed | J1 460°/s; J2 460°/s; J3 520°/s; J4 560°/s; J5 560°/s; J6 900°/s | Cycle time 0.35 s |
Arm weight | 20 kg | 27 kg |
IP rating | IP67 | IP40 standard; IP67 version available |
Controller | R-30iB Mate Plus | DENSO RC8 |
Price comparison
FANUC LR Mate 200iD/4S: listed from $16,500
DENSO VS-050: listed from $30,000
Difference: $13,500
The LR Mate 200iD/4S costs roughly 45% less
Reach and precision

The LR Mate 200iD/4S reaches 550 mm, about 45 mm beyond the 505 mm of the VS-050. FANUC publishes ±0.01 mm against ±0.02 mm from DENSO. Both suit small-part assembly; the FANUC holds slightly tighter positions.
Protection and versions
FANUC rates the LR Mate 200iD/4S IP67 as standard. DENSO's standard VS-050 is IP40, with dust and splash, ISO 3 and ISO 5 cleanroom, and IP67 versions available. For cleanroom electronics or medical work, DENSO's variants are a strong reason to choose it.
Weight and speed

The LR Mate 200iD/4S weighs 20 kg, 7 kg less than the 27 kg VS-050. DENSO publishes a 0.35 s standard cycle time for the VS-050; 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 assembly
Machine tending near coolant
Precision inspection
Best applications for the DENSO VS-050

Cleanroom electronics assembly
Medical and lab automation
Fast small-part handling
LR Mate 200iD/4S advantages
About 45% lower listed price
±0.01 mm repeatability
IP67 as standard
20 kg arm
LR Mate 200iD/4S limitations
Fewer cleanroom variants
DENSO VS-050 advantages
0.35 s cycle time
Cleanroom and IP67 versions
DENSO VS-050 limitations
About $13,500 higher listed price
IP40 on the standard version
Final verdict
Choose the FANUC LR Mate 200iD/4S for value and precision. Choose the DENSO VS-050 for cleanroom variants.
Sources and further reading
Frequently asked questions
Which is cheaper, the FANUC LR Mate 200iD/4S or the DENSO VS-050?
The LR Mate 200iD/4S is listed from $16,500 and the VS-050 from $30,000, a difference of $13,500.
Which robot is more precise?
The LR Mate 200iD/4S publishes ±0.01 mm and the VS-050 ±0.02 mm.
Which robot has the longer reach?
The LR Mate 200iD/4S reaches 550 mm; the VS-050 505 mm.
How heavy are they?
The LR Mate 200iD/4S weighs 20 kg; the VS-050 27 kg.
What IP ratings do they have?
The LR Mate 200iD/4S is IP67 as standard; the VS-050 is IP40 standard with an IP67 version.
Which robot should I buy?
Choose the LR Mate 200iD/4S for value. Choose the VS-050 for cleanroom variants.



