Side-by-side comparison of Collaborative Welding Cobot Machine (Jinan Huaxia Machinery Equipment Co., Ltd.) and RB20-1900 (Rainbow Robotics Co., Ltd.) — specs, pricing, Robolist Product Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Warehousing & Logistics buyers. Priority specs lifted to the top and marked with a target.
Manufacturer Country


Year First Available


Verified Deployments


Price Range (USD)


Availability Status


Payload


Max TCP Speed


Reach


Degrees of Freedom


Repeatability


Robot Weight


Mounting Options


IP Rating


Safety Rating


Force/Torque Sensing


Setup Time


No-Code Capable


Offline Programming


Programming Interface


Fieldbus Protocols


Price (USD)


Warranty


Lead Time


![]() | ![]() | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | South Korea |
| Year First Available (values differ) | — | 2011 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $6,890 | $44,500 |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Warehousing & Logistics buyers) (values differ) | 12 kg | 20 kg |
| Max TCP Speed (priority for Warehousing & Logistics buyers) (values differ) | 2.5 m/s | — |
| Reach (values differ) | 1,800 mm | 1,900 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.02 mm | ±0.05 mm |
| Robot Weight (values differ) | 70 kg | 75 kg |
| Mounting Options (values differ) | floor, ceiling, mobile, portable | — |
| IP Rating (values differ) | IP54 | IP66 |
| Safety | ||
| Safety Rating (values differ) | ISO/TS 15066 | TÜV SÜD |
| Force/Torque Sensing | none | none |
| Ease of Use | ||
| Setup Time (values differ) | — | 1 hrs |
| No-Code Capable (values differ) | Yes | — |
| Offline Programming (values differ) | No | — |
| Programming Interface (values differ) | drag-and-drop teaching | teach_pendant |
| Software & Connectivity | ||
| Fieldbus Protocols (values differ) | EtherCAT | TCP/IP, MODBUS TCP, Siemens S7, OMRON Fins |
| Commercial | ||
| Price (USD) (values differ) | $6,890 | $44,500 |
| Warranty (values differ) | 1 yrs | — |
| Lead Time (values differ) | 4 wks | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, TCP Speed (Collaborative), Power/Force Limiting, Safety I/O Pairs, Duty Cycle, Time to Redeploy, Tool Flange Standard, Tool Changer Support, Integrated F/T Sensor, Wrist Power Supply, SDK Languages, ROS Compatible, Digital Twin Support, MTBF, Path Accuracy, CaaS / Month
Frequently asked
Collaborative Welding Cobot Machine is made by Jinan Huaxia Machinery Equipment Co., Ltd.. RB20-1900 is made by Rainbow Robotics Co., Ltd., based in KR.
Collaborative Welding Cobot Machine is listed at $6,890. RB20-1900 is listed at $44,500.
Collaborative Welding Cobot Machine scores 46/100. RB20-1900 scores 56/100. The Product Score blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
Collaborative Welding Cobot Machine has a reach of 953.4 mm. RB20-1900 has a reach of 1900 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
Collaborative Welding Cobot Machine vs RB20-1900 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 Robolist Product Score is calculated.