Side-by-side comparison of Liujiang 331R (Dongguan Rongan Electromechanical Equipment Co., Ltd.) and RONGWIN ER30 6-Axis CNC Robotic Arm (Nanjing RONGWIN Machinery Technology Co., Ltd.) — specs, pricing, Robolist Product Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Last-Mile Delivery 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

IP Rating (Arm)

Reach

Degrees of Freedom

Repeatability

Robot Weight

Duty Cycle

Dual Check Safety

Controller Model

Programming Languages

Teach Pendant Type

Digital Twin Support

ROS-Industrial Support

IoT / Cloud Platform

Tool Changer (ISO)

Internal Cable Routing

Price (USD)

Warranty

Service Network

![]() RONGWIN ER30 6-Axis CNC Robotic Armindustrial-armNanjing RONGWIN Machinery Technology Co., Ltd. 68.7Product Score | ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | China | China |
| Year First Available (values differ) | — | 2020 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $3,800 | $7,800 |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Last-Mile Delivery buyers) (values differ) | 8 kg | 30 kg |
| IP Rating (Arm) (priority for Last-Mile Delivery buyers) (values differ) | — | Not specified |
| Reach (values differ) | 300 mm | 1,600 mm |
| Degrees of Freedom (values differ) | 3 | 6 |
| Repeatability (values differ) | ±0.2 mm | ±0.1 mm |
| Robot Weight (values differ) | 55 kg | 255 kg |
| Performance | ||
| Duty Cycle (values differ) | not specified | continuous 24 7 |
| Safety | ||
| Dual Check Safety (values differ) | No | — |
| Controller & Programming | ||
| Controller Model (values differ) | 运动控制卡 | Not specified |
| Programming Languages (values differ) | — | C#, C++, Python, Java |
| Teach Pendant Type (values differ) | touch screen control | wired touch |
| Digital Twin Support (values differ) | No | — |
| Connectivity | ||
| ROS-Industrial Support (values differ) | none | vendor supported |
| IoT / Cloud Platform (values differ) | — | cloud operation and maintenance management system |
| End-Effector | ||
| Tool Changer (ISO) (values differ) | none | — |
| Internal Cable Routing (values differ) | external only | — |
| Commercial | ||
| Price (USD) (values differ) | $3,800 | $7,800 |
| Warranty (values differ) | — | 1 yrs |
| Service Network (values differ) | regional | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, Path Accuracy, Max TCP Speed, IP Rating (Wrist), Cycle Time (25/305/25), MTBF, Vibration Damping, Safety Category, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Offline Programming, Communication Protocols, Cybersecurity Certs, Predictive Maintenance, Tool Flange Standard, Pneumatic Lines, Electrical Lines, Spare Parts Lead Time, Expected Service Life
Frequently asked
Liujiang 331R is made by Dongguan Rongan Electromechanical Equipment Co., Ltd., based in CN. RONGWIN ER30 6-Axis CNC Robotic Arm is made by Nanjing RONGWIN Machinery Technology Co., Ltd., based in CN.
Liujiang 331R is listed at $3,800. RONGWIN ER30 6-Axis CNC Robotic Arm is listed at $7,800.
Liujiang 331R scores 37/100. RONGWIN ER30 6-Axis CNC Robotic Arm scores 69/100. The Product Score blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
Liujiang 331R has a reach of 300 mm. RONGWIN ER30 6-Axis CNC Robotic Arm has a reach of 1600 mm.
Both robots are classified as Industrial Arm on Robolist. Filters and ranking treat them as direct alternatives.
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.
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
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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
Liujiang 331R vs RONGWIN ER30 6-Axis CNC Robotic Arm 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 Robolist Product Score is calculated.
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