Collaborative Robot Erc612/Erc612m vs OB7 Stretch
Side-by-side comparison of Collaborative Robot Erc612/Erc612m (Wuhan Donglisheng M&E Technology Co., Ltd.) and OB7 Stretch (Productive Robotics, LLC.) — 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.
Layer 1: Identity & Trust
Manufacturer Country
- Collaborative Robot Erc612/Erc612m—
- OB7 StretchUnited States
Year First Available
- Collaborative Robot Erc612/Erc612m—
- OB7 Stretch2017
Verified Deployments
- Collaborative Robot Erc612/Erc612m0 Deployments
- OB7 Stretch0 Deployments
Layer 2: Operational
Price Range (USD)
- Collaborative Robot Erc612/Erc612m$16,000–$17,000
- OB7 Stretch$24,900
Availability Status
- Collaborative Robot Erc612/Erc612mACTIVE
- OB7 StretchACTIVE
Arm Mechanics
Payload
- Collaborative Robot Erc612/Erc612m1,000 kg
- OB7 Stretch4.5 kg
IP Rating
- Collaborative Robot Erc612/Erc612m—
- OB7 StretchIP54
Reach
- Collaborative Robot Erc612/Erc612m—
- OB7 Stretch1,000 mm
Degrees of Freedom
- Collaborative Robot Erc612/Erc612m6
- OB7 Stretch7
Repeatability
- Collaborative Robot Erc612/Erc612m—
- OB7 Stretch±0.1 mm
Robot Weight
- Collaborative Robot Erc612/Erc612m110 kg
- OB7 Stretch22 kg
Mounting Options
- Collaborative Robot Erc612/Erc612m—
- OB7 Stretchfloor, ceiling, wall
Safety
Safety Rating
- Collaborative Robot Erc612/Erc612mISO, CE
- OB7 StretchISO/TS 15066
Force/Torque Sensing
- Collaborative Robot Erc612/Erc612m—
- OB7 Stretchnone
Ease of Use
Setup Time
- Collaborative Robot Erc612/Erc612m—
- OB7 Stretch1 hrs
No-Code Capable
- Collaborative Robot Erc612/Erc612m—
- OB7 StretchYes
Offline Programming
- Collaborative Robot Erc612/Erc612m—
- OB7 StretchYes
Programming Interface
- Collaborative Robot Erc612/Erc612mteach_pendant
- OB7 StretchDrag-and-drop
End-Effector
Tool Flange Standard
- Collaborative Robot Erc612/Erc612m—
- OB7 StretchISO 9409-1-A50
Software & Connectivity
Fieldbus Protocols
- Collaborative Robot Erc612/Erc612m—
- OB7 StretchEtherCAT, Profinet
Commercial
Price (USD)
- Collaborative Robot Erc612/Erc612m$16,000–$17,000
- OB7 Stretch$24,900
Warranty
- Collaborative Robot Erc612/Erc612m1 yrs
- OB7 Stretch2 yrs
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | United States |
| Year First Available (values differ) | — | 2017 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $16,000–$17,000 | $24,900 |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Last-Mile Delivery buyers) (values differ) | 1,000 kg | 4.5 kg |
| IP Rating (priority for Last-Mile Delivery buyers) (values differ) | — | IP54 |
| Reach (values differ) | — | 1,000 mm |
| Degrees of Freedom (values differ) | 6 | 7 |
| Repeatability (values differ) | — | ±0.1 mm |
| Robot Weight (values differ) | 110 kg | 22 kg |
| Mounting Options (values differ) | — | floor, ceiling, wall |
| Safety | ||
| Safety Rating (values differ) | ISO, CE | ISO/TS 15066 |
| Force/Torque Sensing (values differ) | — | none |
| Ease of Use | ||
| Setup Time (values differ) | — | 1 hrs |
| No-Code Capable (values differ) | — | Yes |
| Offline Programming (values differ) | — | Yes |
| Programming Interface (values differ) | teach_pendant | Drag-and-drop |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | ISO 9409-1-A50 |
| Software & Connectivity | ||
| Fieldbus Protocols (values differ) | — | EtherCAT, Profinet |
| Commercial | ||
| Price (USD) (values differ) | $16,000–$17,000 | $24,900 |
| Warranty (values differ) | 1 yrs | 2 yrs |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, Max TCP Speed, TCP Speed (Collaborative), Power/Force Limiting, Safety I/O Pairs, Duty Cycle, Time to Redeploy, Tool Changer Support, Integrated F/T Sensor, Wrist Power Supply, SDK Languages, ROS Compatible, Digital Twin Support, MTBF, Path Accuracy, CaaS / Month, Lead Time
best in categoryweakest in categoryvalues differ
Trade-offs at a glance
Frequently asked
Who makes Collaborative Robot Erc612/Erc612m and OB7 Stretch?
Collaborative Robot Erc612/Erc612m is made by Wuhan Donglisheng M&E Technology Co., Ltd.. OB7 Stretch is made by Productive Robotics, LLC., based in US.
How do Collaborative Robot Erc612/Erc612m and OB7 Stretch compare on the Robolist Product Score?
Collaborative Robot Erc612/Erc612m scores 44/100. OB7 Stretch scores 97/100. The Product Score blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
Are Collaborative Robot Erc612/Erc612m and OB7 Stretch in the same category?
Both robots are classified as Cobot on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Cobot robots?
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.
What should a buyer ask vendors when choosing between Collaborative Robot Erc612/Erc612m and OB7 Stretch?
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
About this comparison
Collaborative Robot Erc612/Erc612m vs OB7 Stretch 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.