eDavid vs KR 120 R3900-2 K
Side-by-side comparison of eDavid (University of Konstanz) and KR 120 R3900-2 K (KUKA Robotics) — 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
- eDavid—
- KR 120 R3900-2 KGermany
Year First Available
- eDavid2009
- KR 120 R3900-2 K2015
Verified Deployments
- eDavid0 Deployments
- KR 120 R3900-2 K0 Deployments
Layer 2: Operational
Price
- eDavidResearch platform
- KR 120 R3900-2 K$19,000–$84,900 USD
Availability Status
- eDavidACTIVE
- KR 120 R3900-2 KACTIVE
Arm Mechanics
Robot Weight
- eDavid55 kg
- KR 120 R3900-2 K42 kg
Payload
- eDavid10 kg
- KR 120 R3900-2 K146 kg
Reach
- eDavid1,100 mm
- KR 120 R3900-2 K3,904 mm
Degrees of Freedom
- eDavid6
- KR 120 R3900-2 K6
Repeatability
- eDavid—
- KR 120 R3900-2 K±0.04 mm
IP Rating (Arm)
- eDavidIP54
- KR 120 R3900-2 KIP65
IP Rating (Wrist)
- eDavid—
- KR 120 R3900-2 KIP67
Performance
MTBF
- eDavid50,000 hrs
- KR 120 R3900-2 K—
Duty Cycle
- eDavidcontinuous 24 7
- KR 120 R3900-2 K—
Vibration Damping
- eDavidactive model based
- KR 120 R3900-2 K—
Safety
Safety Category
- eDavidCat.3 PLd
- KR 120 R3900-2 K—
Dual Check Safety
- eDavidYes
- KR 120 R3900-2 K—
Safety I/O Pairs
- eDavid4
- KR 120 R3900-2 K—
E-Stop Response
- eDavid100 ms
- KR 120 R3900-2 K—
Safe Zone Count
- eDavid6
- KR 120 R3900-2 K—
Controller & Programming
Controller Model
- eDavidKR C4
- KR 120 R3900-2 KKR C5, KR C5 micro
Programming Languages
- eDavidKRL, Java
- KR 120 R3900-2 K—
Teach Pendant Type
- eDavidsmart pad
- KR 120 R3900-2 K—
Offline Programming
- eDavidKUKA.Sim
- KR 120 R3900-2 K—
Digital Twin Support
- eDavidYes
- KR 120 R3900-2 K—
Connectivity
ROS-Industrial Support
- eDavidvendor supported
- KR 120 R3900-2 K—
IoT / Cloud Platform
- eDavidKUKA Connect
- KR 120 R3900-2 K—
Cybersecurity Certs
- eDavidIEC 62443 SL2
- KR 120 R3900-2 K—
Predictive Maintenance
- eDavidml based
- KR 120 R3900-2 K—
End-Effector
Tool Flange Standard
- eDavidISO 9409-1
- KR 120 R3900-2 K—
Tool Changer (ISO)
- eDavidproprietary
- KR 120 R3900-2 K—
Internal Cable Routing
- eDavidthrough arm and wrist
- KR 120 R3900-2 K—
Pneumatic Lines
- eDavid2
- KR 120 R3900-2 K—
Electrical Lines
- eDavid4
- KR 120 R3900-2 K—
Commercial
Price (USD)
- eDavidResearch platform
- KR 120 R3900-2 K$19,000–$84,900 USD
Warranty
- eDavid—
- KR 120 R3900-2 K2 yrs
Service Network
- eDavidglobal
- KR 120 R3900-2 Kglobal
Spare Parts Lead Time
- eDavid5 days
- KR 120 R3900-2 K—
Expected Service Life
- eDavid15 yrs
- KR 120 R3900-2 K—
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | Germany |
| Year First Available (values differ) | 2009 | 2015 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | Research platform | $19,000–$84,900 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Robot Weight (priority for Cleaning & Facilities buyers) (values differ) | 55 kg | 42 kg |
| Payload (priority for Cleaning & Facilities buyers) (values differ) | 10 kg | 146 kg |
| Reach (values differ) | 1,100 mm | 3,904 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | — | ±0.04 mm |
| IP Rating (Arm) (values differ) | IP54 | IP65 |
| IP Rating (Wrist) (values differ) | — | IP67 |
| Performance | ||
| MTBF (values differ) | 50,000 hrs | — |
| Duty Cycle (values differ) | continuous 24 7 | — |
| Vibration Damping (values differ) | active model based | — |
| Safety | ||
| Safety Category (values differ) | Cat.3 PLd | — |
| Dual Check Safety (values differ) | Yes | — |
| Safety I/O Pairs (values differ) | 4 | — |
| E-Stop Response (values differ) | 100 ms | — |
| Safe Zone Count (values differ) | 6 | — |
| Controller & Programming | ||
| Controller Model (values differ) | KR C4 | KR C5, KR C5 micro |
| Programming Languages (values differ) | KRL, Java | — |
| Teach Pendant Type (values differ) | smart pad | — |
| Offline Programming (values differ) | KUKA.Sim | — |
| Digital Twin Support (values differ) | Yes | — |
| Connectivity | ||
| ROS-Industrial Support (values differ) | vendor supported | — |
| IoT / Cloud Platform (values differ) | KUKA Connect | — |
| Cybersecurity Certs (values differ) | IEC 62443 SL2 | — |
| Predictive Maintenance (values differ) | ml based | — |
| End-Effector | ||
| Tool Flange Standard (values differ) | ISO 9409-1 | — |
| Tool Changer (ISO) (values differ) | proprietary | — |
| Internal Cable Routing (values differ) | through arm and wrist | — |
| Pneumatic Lines (values differ) | 2 | — |
| Electrical Lines (values differ) | 4 | — |
| Commercial | ||
| Price (USD) (values differ) | Research platform | $19,000–$84,900 USD |
| Warranty (values differ) | — | 2 yrs |
| Service Network | global | global |
| Spare Parts Lead Time (values differ) | 5 days | — |
| Expected Service Life (values differ) | 15 yrs | — |
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, Cycle Time (25/305/25), Communication Protocols
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | eDavid | KR 120 R3900-2 K |
|---|---|---|
| Investment | No price | $51,950 |
| Payback period | — | 12.5 mo |
| Net savings (5 yr) | — | $198,050 |
| ROI (5 yr) | — | +381% |
eDavid has no listed price, so payback can't be computed. Contact the manufacturer for a quote.
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes eDavid and KR 120 R3900-2 K?
eDavid is made by University of Konstanz. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.
When were eDavid and KR 120 R3900-2 K launched?
eDavid launched in 2009. KR 120 R3900-2 K launched in 2015.
How do eDavid and KR 120 R3900-2 K compare on the Robo Index?
eDavid grades BB on the Robo Index. KR 120 R3900-2 K grades AAA. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
How does the reach of eDavid compare to KR 120 R3900-2 K?
eDavid has a reach of 1100 mm. KR 120 R3900-2 K has a reach of 3904 mm.
Are eDavid and KR 120 R3900-2 K in the same category?
Both robots are classified as Industrial Arm on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Industrial Arm robots?
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.
What should a buyer ask vendors when choosing between eDavid and KR 120 R3900-2 K?
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
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About this comparison
eDavid vs KR 120 R3900-2 K 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 Robo Index is calculated.