RDT401 vs SR
Side-by-side comparison of RDT401 (Foshan Ruipuhua Machinery Equipment Co., Ltd.) and SR (DAIHEN) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Home & Household buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- RDT401China
- SRJapan
Year First Available
- RDT4012012
- SR1983
Verified Deployments
- RDT4010 Deployments
- SR0 Deployments
Layer 2: Operational
Availability Status
- RDT401ACTIVE
- SRACTIVE
Arm Mechanics
Robot Weight
- RDT40185 kg
- SR—
Payload
- RDT4011 kg
- SR—
Reach
- RDT401200 mm
- SR—
Degrees of Freedom
- RDT4014
- SR6
Repeatability
- RDT401±0.1 mm
- SR—
Max TCP Speed
- RDT4014 m/s
- SR—
IP Rating (Arm)
- RDT401IP54
- SR—
Performance
Duty Cycle
- RDT401multi shift
- SR—
Safety
Safety I/O Pairs
- RDT40124
- SR—
Controller & Programming
Controller Model
- RDT401—
- SRAX series controller (co-developed with Nachi-Fujikoshi)
Teach Pendant Type
- RDT401—
- SRwired button
Connectivity
ROS-Industrial Support
- RDT401none
- SR—
End-Effector
Tool Changer (ISO)
- RDT401none
- SR—
Internal Cable Routing
- RDT401external only
- SR—
Electrical Lines
- RDT40110
- SR—
Commercial
Warranty
- RDT4012 yrs
- SR—
Service Network
- RDT401regional
- SRglobal
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | China | Japan |
| Year First Available (values differ) | 2012 | 1983 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Robot Weight (priority for Home & Household buyers) (values differ) | 85 kg | — |
| Payload (values differ) | 1 kg | — |
| Reach (values differ) | 200 mm | — |
| Degrees of Freedom (values differ) | 4 | 6 |
| Repeatability (values differ) | ±0.1 mm | — |
| Max TCP Speed (values differ) | 4 m/s | — |
| IP Rating (Arm) (values differ) | IP54 | — |
| Performance | ||
| Duty Cycle (values differ) | multi shift | — |
| Safety | ||
| Safety I/O Pairs (values differ) | 24 | — |
| Controller & Programming | ||
| Controller Model (values differ) | — | AX series controller (co-developed with Nachi-Fujikoshi) |
| Teach Pendant Type (values differ) | — | wired button |
| Connectivity | ||
| ROS-Industrial Support (values differ) | none | — |
| End-Effector | ||
| Tool Changer (ISO) (values differ) | none | — |
| Internal Cable Routing (values differ) | external only | — |
| Electrical Lines (values differ) | 10 | — |
| Commercial | ||
| Warranty (values differ) | 2 yrs | — |
| Service Network (values differ) | regional | global |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Price, Battery / Shift Runtime, Path Accuracy, IP Rating (Wrist), Cycle Time (25/305/25), MTBF, Vibration Damping, Safety Category, Dual Check Safety, E-Stop Response, Safe Zone Count, Programming Languages, Offline Programming, Digital Twin Support, Communication Protocols, IoT / Cloud Platform, Cybersecurity Certs, Predictive Maintenance, Tool Flange Standard, Pneumatic Lines, Price (USD), Spare Parts Lead Time, Expected Service Life
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | RDT401 | SR |
|---|---|---|
| Investment | No price | No price |
| Payback period | — | — |
| Net savings (5 yr) | — | — |
| ROI (5 yr) | — | — |
RDT401, SR have no listed price, so payback can't be computed. Contact the manufacturer for a quote.
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes RDT401 and SR?
RDT401 is made by Foshan Ruipuhua Machinery Equipment Co., Ltd., based in CN. SR is made by DAIHEN, based in JP.
When were RDT401 and SR launched?
RDT401 launched in 2012. SR launched in 1983.
How do RDT401 and SR compare on the Robo Index?
RDT401 grades AA on the Robo Index. SR 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 RDT401 and SR 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 RDT401 and SR?
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
RDT401 vs SR 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.