Side-by-side comparison of BS20 (Benson Intelligent Equipment (Shandong) Co., Ltd.) and Rainbow Robotics RB3-730 (Rainbow Robotics Co., Ltd.) — 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.
Manufacturer Country


Verified Deployments


Price


Availability Status


Reach


Repeatability


Payload


Degrees of Freedom


Max TCP Speed


Robot Weight


Safety Rating


Force/Torque Sensing


Setup Time


No-Code Capable


Programming Interface


Price (USD)


Warranty


![]() | ![]() | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | China | South Korea |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $3,500–$12,000 USD | $18,500–$20,000 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Reach (priority for Manufacturing buyers) (values differ) | 1,854 mm | — |
| Repeatability (priority for Manufacturing buyers) (values differ) | ±0.1 mm | ±0.05 mm |
| Payload (priority for Manufacturing buyers) (values differ) | 20 kg | — |
| Degrees of Freedom (values differ) | 6 | — |
| Max TCP Speed (values differ) | 0.1 m/s | — |
| Robot Weight (values differ) | 85 kg | — |
| Safety | ||
| Safety Rating (values differ) | ISO/TS 15066 | CE |
| Force/Torque Sensing | none | none |
| Ease of Use | ||
| Setup Time (values differ) | — | 1 hrs |
| No-Code Capable (values differ) | — | Yes |
| Programming Interface (values differ) | — | teach_pendant, proprietary_app |
| Commercial | ||
| Price (USD) (values differ) | $3,500–$12,000 USD | $18,500–$20,000 USD |
| Warranty (values differ) | 1 yrs | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Year First Available, Battery / Shift Runtime, Mounting Options, IP Rating, TCP Speed (Collaborative), Power/Force Limiting, Safety I/O Pairs, Duty Cycle, Time to Redeploy, Offline Programming, Tool Flange Standard, Tool Changer Support, Integrated F/T Sensor, Wrist Power Supply, SDK Languages, ROS Compatible, Fieldbus Protocols, Digital Twin Support, MTBF, Path Accuracy, CaaS / Month, Lead Time
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 | BS20 | Rainbow Robotics RB3-730 |
|---|---|---|
| Investment | $7,750 | $19,250 |
| Payback period | 1.9 mo | 4.6 mo |
| Net savings (5 yr) | $242,250 | $230,750 |
| ROI (5 yr) | +3126% | +1199% |
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.
Frequently asked
BS20 is made by Benson Intelligent Equipment (Shandong) Co., Ltd., based in CN. Rainbow Robotics RB3-730 is made by Rainbow Robotics Co., Ltd., based in KR.
BS20 grades BBB on the Robo Index. Rainbow Robotics RB3-730 grades AA. 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.
BS20 has a reach of 1854 mm. Rainbow Robotics RB3-730 has a reach of 730 mm.
Both robots are classified as Cobot on Robolist. Filters and ranking treat them as direct alternatives.
Hardware cost is one input. Cobot TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Cobot TCO and Payback Math: Hardware, EOAT, and Zero-Fencing Savings.
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Cobot Vendor Red Flags: Questions That Filter Out the Marketing.
Going deeper — picking the right robot
Cobot TCO and Payback Math: Hardware, EOAT, and Zero-Fencing Savings
6 min readCollaborative Robots
Cobot Vendor Red Flags: Questions That Filter Out the Marketing
9 min readCollaborative Robots
Running a Cobot Pilot in a Manual Production Line
9 min readCollaborative Robots
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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BS20 vs Rainbow Robotics RB3-730 compares two robots in the cobot 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.