OB7 Stretch vs UR18
Side-by-side comparison of OB7 Stretch (Productive Robotics, LLC.) and UR18 (Universal Robots A/S (subsidiary of Teradyne)) — specs, pricing, Robolist Index, 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
- OB7 StretchUnited States
- UR18Denmark
Year First Available
- OB7 Stretch2017
- UR18—
Verified Deployments
- OB7 Stretch0 Deployments
- UR180 Deployments
Layer 2: Operational
Price Range (USD)
- OB7 Stretch$24,900
- UR18$65,065–$68,435
Availability Status
- OB7 StretchACTIVE
- UR18ACTIVE
Arm Mechanics
Payload
- OB7 Stretch4.5 kg
- UR1818 kg
Max TCP Speed
- OB7 Stretch—
- UR184 m/s
IP Rating
- OB7 StretchIP54
- UR18IP65
Reach
- OB7 Stretch1,000 mm
- UR18950 mm
Degrees of Freedom
- OB7 Stretch7
- UR18—
Repeatability
- OB7 Stretch±0.1 mm
- UR18—
Robot Weight
- OB7 Stretch22 kg
- UR1839.2 kg
Mounting Options
- OB7 Stretchfloor, ceiling, wall
- UR18floor, ceiling, wall, inverted
Safety
Safety Rating
- OB7 StretchISO/TS 15066
- UR18Cat3 PLd
Force/Torque Sensing
- OB7 Stretchnone
- UR18joint level all
Duty Cycle
- OB7 Stretch—
- UR1824 7 continuous
Ease of Use
Setup Time
- OB7 Stretch1 hrs
- UR181 hrs
No-Code Capable
- OB7 StretchYes
- UR18Yes
Offline Programming
- OB7 StretchYes
- UR18Yes
Programming Interface
- OB7 StretchDrag-and-drop
- UR18teach_pendant, drag_and_drop
End-Effector
Tool Flange Standard
- OB7 StretchISO 9409-1-A50
- UR18iso 9283
Integrated F/T Sensor
- OB7 Stretch—
- UR18Yes
Wrist Power Supply
- OB7 Stretch—
- UR1824V DC + pneumatic
Software & Connectivity
SDK Languages
- OB7 Stretch—
- UR18Python, URScript
Fieldbus Protocols
- OB7 StretchEtherCAT, Profinet
- UR18EtherCAT, Profinet, Modbus TCP
Digital Twin Support
- OB7 Stretch—
- UR18Yes
Commercial
Price (USD)
- OB7 Stretch$24,900
- UR18$65,065–$68,435
Warranty
- OB7 Stretch2 yrs
- UR18—
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | United States | Denmark |
| Year First Available (values differ) | 2017 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $24,900 | $65,065–$68,435 |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Last-Mile Delivery buyers) (values differ) | 4.5 kg | 18 kg |
| Max TCP Speed (priority for Last-Mile Delivery buyers) (values differ) | — | 4 m/s |
| IP Rating (priority for Last-Mile Delivery buyers) (values differ) | IP54 | IP65 |
| Reach (values differ) | 1,000 mm | 950 mm |
| Degrees of Freedom (values differ) | 7 | — |
| Repeatability (values differ) | ±0.1 mm | — |
| Robot Weight (values differ) | 22 kg | 39.2 kg |
| Mounting Options (values differ) | floor, ceiling, wall | floor, ceiling, wall, inverted |
| Safety | ||
| Safety Rating (values differ) | ISO/TS 15066 | Cat3 PLd |
| Force/Torque Sensing (values differ) | none | joint level all |
| Duty Cycle (values differ) | — | 24 7 continuous |
| Ease of Use | ||
| Setup Time | 1 hrs | 1 hrs |
| No-Code Capable | Yes | Yes |
| Offline Programming (values differ) | Yes | Yes |
| Programming Interface (values differ) | Drag-and-drop | teach_pendant, drag_and_drop |
| End-Effector | ||
| Tool Flange Standard (values differ) | ISO 9409-1-A50 | iso 9283 |
| Integrated F/T Sensor (values differ) | — | Yes |
| Wrist Power Supply (values differ) | — | 24V DC + pneumatic |
| Software & Connectivity | ||
| SDK Languages (values differ) | — | Python, URScript |
| Fieldbus Protocols (values differ) | EtherCAT, Profinet | EtherCAT, Profinet, Modbus TCP |
| Digital Twin Support (values differ) | — | Yes |
| Commercial | ||
| Price (USD) (values differ) | $24,900 | $65,065–$68,435 |
| Warranty (values differ) | 2 yrs | — |
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, Time to Redeploy, Tool Changer Support, ROS Compatible, MTBF, Path Accuracy, CaaS / Month, Lead Time
best in categoryweakest in categoryvalues differ
Trade-offs at a glance
Frequently asked
Who makes OB7 Stretch and UR18?
OB7 Stretch is made by Productive Robotics, LLC., based in US. UR18 is made by Universal Robots A/S (subsidiary of Teradyne), based in DK.
How do OB7 Stretch and UR18 compare on the Robolist Index?
OB7 Stretch scores 97/100. UR18 scores 75/100. The Robolist Index blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
How does the reach of OB7 Stretch compare to UR18?
OB7 Stretch has a reach of 1250 mm. UR18 has a reach of 950 mm.
Are OB7 Stretch and UR18 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 OB7 Stretch and UR18?
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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About this comparison
OB7 Stretch vs UR18 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 Index is calculated.