CS620 vs OB7 Stretch
Side-by-side comparison of CS620 (Elite Robots) and OB7 Stretch (Productive Robotics, LLC.) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Cleaning & Facilities buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- CS620China
- OB7 StretchUnited States
Year First Available
- CS620—
- OB7 Stretch2017
Verified Deployments
- CS6200 Deployments
- OB7 Stretch0 Deployments
Layer 2: Operational
Price Range (USD)
- CS620Contact for quote
- OB7 Stretch$24,400–$24,900
Availability Status
- CS620ACTIVE
- OB7 StretchACTIVE
Arm Mechanics
Robot Weight
- CS62060 kg
- OB7 Stretch22 kg
Max TCP Speed
- CS6203.9 m/s
- OB7 Stretch—
Payload
- CS62020 kg
- OB7 Stretch4.5 kg
Reach
- CS6201,800 mm
- OB7 Stretch1,000 mm
Degrees of Freedom
- CS6206
- OB7 Stretch7
Repeatability
- CS620±0.1 mm
- OB7 Stretch±0.1 mm
Mounting Options
- CS620omnidirectional
- OB7 Stretchfloor, ceiling, wall
IP Rating
- CS620IP65
- OB7 StretchIP54
Safety
Safety Rating
- CS620ISO/TS 15066
- OB7 StretchISO/TS 15066
Force/Torque Sensing
- CS620none
- OB7 Stretchnone
Ease of Use
Setup Time
- CS620—
- OB7 Stretch1 hrs
No-Code Capable
- CS620—
- OB7 StretchYes
Offline Programming
- CS620—
- OB7 StretchYes
Programming Interface
- CS620Standard Teach Pendant
- OB7 StretchDrag-and-drop
End-Effector
Tool Flange Standard
- CS620—
- OB7 StretchISO 9409-1-A50
Software & Connectivity
Fieldbus Protocols
- CS620Modbus RTU, Ethernet TCP/IP, Ethernet/IP, Profinet
- OB7 StretchEtherCAT, Profinet
Commercial
Price (USD)
- CS620Contact for quote
- OB7 Stretch$24,400–$24,900
Warranty
- CS620—
- OB7 Stretch2 yrs
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | China | United States |
| Year First Available (values differ) | — | 2017 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | Contact for quote | $24,400–$24,900 |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Robot Weight (priority for Cleaning & Facilities buyers) (values differ) | 60 kg | 22 kg |
| Max TCP Speed (priority for Cleaning & Facilities buyers) (values differ) | 3.9 m/s | — |
| Payload (priority for Cleaning & Facilities buyers) (values differ) | 20 kg | 4.5 kg |
| Reach (values differ) | 1,800 mm | 1,000 mm |
| Degrees of Freedom (values differ) | 6 | 7 |
| Repeatability | ±0.1 mm | ±0.1 mm |
| Mounting Options (values differ) | omnidirectional | floor, ceiling, wall |
| IP Rating (values differ) | IP65 | IP54 |
| Safety | ||
| Safety Rating | ISO/TS 15066 | ISO/TS 15066 |
| Force/Torque Sensing | none | 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) | Standard Teach Pendant | Drag-and-drop |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | ISO 9409-1-A50 |
| Software & Connectivity | ||
| Fieldbus Protocols (values differ) | Modbus RTU, Ethernet TCP/IP, Ethernet/IP, Profinet | EtherCAT, Profinet |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $24,400–$24,900 |
| 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, 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 CS620 and OB7 Stretch?
CS620 is made by Elite Robots, based in CN. OB7 Stretch is made by Productive Robotics, LLC., based in US.
How do CS620 and OB7 Stretch compare on the Robo Index?
CS620 scores 72/100. OB7 Stretch scores 97/100. The Robo Index blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
How does the reach of CS620 compare to OB7 Stretch?
CS620 has a reach of 1800 mm. OB7 Stretch has a reach of 1250 mm.
Are CS620 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 CS620 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
Want to be notified when specs or pricing change for these robots? Drop your email.
About this comparison
CS620 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 Robo Index is calculated.