Side-by-side comparison of GZM (Shanghai Guangzhi Automation Equipment Co., Ltd.) and Liujiang 331R (Dongguan Rongan Electromechanical Equipment Co., Ltd.) — specs, pricing, Robolist Product Score, 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 Range (USD)
Availability Status
Reach
Repeatability
Payload
Degrees of Freedom
Robot Weight
Duty Cycle
Dual Check Safety
Controller Model
Teach Pendant Type
Digital Twin Support
ROS-Industrial Support
Tool Changer (ISO)
Internal Cable Routing
Price (USD)
Service Network
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | China |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | Contact for quote | $3,800 |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Reach (priority for Manufacturing buyers) (values differ) | — | 300 mm |
| Repeatability (priority for Manufacturing buyers) (values differ) | ±0.05 mm | ±0.2 mm |
| Payload (priority for Manufacturing buyers) (values differ) | — | 8 kg |
| Degrees of Freedom (values differ) | 6 | 3 |
| Robot Weight (values differ) | — | 55 kg |
| Performance | ||
| Duty Cycle (values differ) | — | not specified |
| Safety | ||
| Dual Check Safety (values differ) | — | No |
| Controller & Programming | ||
| Controller Model (values differ) | — | 运动控制卡 |
| Teach Pendant Type (values differ) | — | touch screen control |
| Digital Twin Support (values differ) | — | No |
| Connectivity | ||
| ROS-Industrial Support (values differ) | — | none |
| End-Effector | ||
| Tool Changer (ISO) (values differ) | — | none |
| Internal Cable Routing (values differ) | — | external only |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $3,800 |
| Service Network (values differ) | — | regional |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Year First Available, Battery / Shift Runtime, Path Accuracy, Max TCP Speed, IP Rating (Arm), IP Rating (Wrist), Cycle Time (25/305/25), MTBF, Vibration Damping, Safety Category, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Programming Languages, Offline Programming, Communication Protocols, IoT / Cloud Platform, Cybersecurity Certs, Predictive Maintenance, Tool Flange Standard, Pneumatic Lines, Electrical Lines, Warranty, Spare Parts Lead Time, Expected Service Life
Frequently asked
GZM is made by Shanghai Guangzhi Automation Equipment Co., Ltd.. Liujiang 331R is made by Dongguan Rongan Electromechanical Equipment Co., Ltd., based in CN.
GZM scores 22/100. Liujiang 331R scores 37/100. The Product Score blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
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
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
GZM vs Liujiang 331R 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.