SR vs YK-TW
Side-by-side comparison of SR (DAIHEN) and YK-TW (Yamaha Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Manufacturing buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- SRJapan
- YK-TWJapan
Year First Available
- SR1983
- YK-TW2012
Verified Deployments
- SR0 Deployments
- YK-TW0 Deployments
Layer 2: Operational
Availability Status
- SRACTIVE
- YK-TWACTIVE
Arm Mechanics
Reach
- SR—
- YK-TW500 mm
Repeatability
- SR—
- YK-TW±0.01 mm
Payload
- SR—
- YK-TW5 kg
IP Rating (Arm)
- SR—
- YK-TWIP20
Degrees of Freedom
- SR6
- YK-TW4
Robot Weight
- SR—
- YK-TW27 kg
Performance
Cycle Time (25/305/25)
- SR—
- YK-TW0.3 s
Duty Cycle
- SR—
- YK-TWcontinuous 24 7
Vibration Damping
- SR—
- YK-TWpassive
Safety
Safety Category
- SR—
- YK-TWCat.3 PLd
Dual Check Safety
- SR—
- YK-TWNo
Safety I/O Pairs
- SR—
- YK-TW8
Safe Zone Count
- SR—
- YK-TW4
Controller & Programming
Controller Model
- SRAX series controller (co-developed with Nachi-Fujikoshi)
- YK-TWRCX340
Programming Languages
- SR—
- YK-TWYamaha PCL (proprietary)
Teach Pendant Type
- SRwired button
- YK-TWwired touch
Offline Programming
- SR—
- YK-TWYamaha RCX340 Studio
Digital Twin Support
- SR—
- YK-TWNo
Connectivity
ROS-Industrial Support
- SR—
- YK-TWnone
Predictive Maintenance
- SR—
- YK-TWthreshold based
End-Effector
Tool Flange Standard
- SR—
- YK-TWISO 9409-1
Tool Changer (ISO)
- SR—
- YK-TWnone
Internal Cable Routing
- SR—
- YK-TWthrough arm
Pneumatic Lines
- SR—
- YK-TW2
Electrical Lines
- SR—
- YK-TW8
Commercial
Service Network
- SRglobal
- YK-TWglobal
Spare Parts Lead Time
- SR—
- YK-TW5 days
Expected Service Life
- SR—
- YK-TW10 yrs
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | Japan | Japan |
| Year First Available (values differ) | 1983 | 2012 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Reach (priority for Manufacturing buyers) (values differ) | — | 500 mm |
| Repeatability (priority for Manufacturing buyers) (values differ) | — | ±0.01 mm |
| Payload (priority for Manufacturing buyers) (values differ) | — | 5 kg |
| IP Rating (Arm) (priority for Manufacturing buyers) (values differ) | — | IP20 |
| Degrees of Freedom (values differ) | 6 | 4 |
| Robot Weight (values differ) | — | 27 kg |
| Performance | ||
| Cycle Time (25/305/25) (values differ) | — | 0.3 s |
| Duty Cycle (values differ) | — | continuous 24 7 |
| Vibration Damping (values differ) | — | passive |
| Safety | ||
| Safety Category (values differ) | — | Cat.3 PLd |
| Dual Check Safety (values differ) | — | No |
| Safety I/O Pairs (values differ) | — | 8 |
| Safe Zone Count (values differ) | — | 4 |
| Controller & Programming | ||
| Controller Model (values differ) | AX series controller (co-developed with Nachi-Fujikoshi) | RCX340 |
| Programming Languages (values differ) | — | Yamaha PCL (proprietary) |
| Teach Pendant Type (values differ) | wired button | wired touch |
| Offline Programming (values differ) | — | Yamaha RCX340 Studio |
| Digital Twin Support (values differ) | — | No |
| Connectivity | ||
| ROS-Industrial Support (values differ) | — | none |
| Predictive Maintenance (values differ) | — | threshold based |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | ISO 9409-1 |
| Tool Changer (ISO) (values differ) | — | none |
| Internal Cable Routing (values differ) | — | through arm |
| Pneumatic Lines (values differ) | — | 2 |
| Electrical Lines (values differ) | — | 8 |
| Commercial | ||
| Service Network | global | global |
| Spare Parts Lead Time (values differ) | — | 5 days |
| Expected Service Life (values differ) | — | 10 yrs |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Price Range (USD), Battery / Shift Runtime, Path Accuracy, Max TCP Speed, IP Rating (Wrist), MTBF, E-Stop Response, Communication Protocols, IoT / Cloud Platform, Cybersecurity Certs, Price (USD), Warranty
best in categoryweakest in categoryvalues differ
Trade-offs at a glance
Frequently asked
Who makes SR and YK-TW?
SR is made by DAIHEN, based in JP. YK-TW is made by Yamaha Robotics, based in JP.
When were SR and YK-TW launched?
SR launched in 1983. YK-TW launched in 2012.
How do SR and YK-TW compare on the Robo Index?
SR grades AA on the Robo Index. YK-TW grades A. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
Are SR and YK-TW in the same category?
Both robots are classified as Industrial Arm on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Industrial Arm robots?
Hardware cost is one input. Industrial Arm TCO also includes integration, training, downtime, and end-of-life. Our breakdown: TCO of a 6-Axis Arm Cell: Hardware, EOAT, Integration, Programming.
What should a buyer ask vendors when choosing between SR and YK-TW?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Industrial Arm Vendor Selection: Capability Matrices and Proof Points.
Going deeper — picking the right robot
TCO of a 6-Axis Arm Cell: Hardware, EOAT, Integration, Programming
7 min readIndustrial Arms
Industrial Arm Vendor Selection: Capability Matrices and Proof Points
9 min readIndustrial Arms
Programming Approaches: Teach Pendant, Offline, AI-Assisted — What Each Costs You
8 min readIndustrial Arms
Build vs buy vs lease: which model fits a first deployment
8 min readChoosing Your First Robot
The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
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About this comparison
SR vs YK-TW compares two robots in the industrial-arm category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robo Index is calculated.