KR 120 R3900-2 K vs Wheel Version Intelligent Quadruped Robot - Stellar Explorer
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and Wheel Version Intelligent Quadruped Robot - Stellar Explorer (Norsat) — specs, pricing, Robo Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- Wheel Version Intelligent Quadruped Robot -…—
Year First Available
- KR 120 R3900-2 K2015
- Wheel Version Intelligent Quadruped Robot -…—
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- Wheel Version Intelligent Quadruped Robot -…$67,730 USD
Battery / Shift Runtime
- KR 120 R3900-2 K—
- Wheel Version Intelligent Quadruped Robot -…4 hrs
Availability Status
- KR 120 R3900-2 KACTIVE
- Wheel Version Intelligent Quadruped Robot -…ACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- Wheel Version Intelligent Quadruped Robot -…—
Reach
- KR 120 R3900-2 K3,904 mm
- Wheel Version Intelligent Quadruped Robot -…—
Degrees of Freedom
- KR 120 R3900-2 K6
- Wheel Version Intelligent Quadruped Robot -…12
Repeatability
- KR 120 R3900-2 K±0.04 mm
- Wheel Version Intelligent Quadruped Robot -…—
Robot Weight
- KR 120 R3900-2 K42 kg
- Wheel Version Intelligent Quadruped Robot -…—
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- Wheel Version Intelligent Quadruped Robot -…—
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- Wheel Version Intelligent Quadruped Robot -…—
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- Wheel Version Intelligent Quadruped Robot -…—
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- Wheel Version Intelligent Quadruped Robot -…$67,730 USD
Warranty
- KR 120 R3900-2 K2 yrs
- Wheel Version Intelligent Quadruped Robot -…1 yrs
Service Network
- KR 120 R3900-2 Kglobal
- Wheel Version Intelligent Quadruped Robot -…—
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Germany | — |
| Year First Available (values differ) | 2015 | — |
| Layer 2: Operational | ||
| Price (values differ) | $19,000–$84,900 USD | $67,730 USD |
| Battery / Shift Runtime (values differ) | — | 4 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (values differ) | 146 kg | — |
| Reach (values differ) | 3,904 mm | — |
| Degrees of Freedom (values differ) | 6 | 12 |
| Repeatability (values differ) | ±0.04 mm | — |
| Robot Weight (values differ) | 42 kg | — |
| IP Rating (Arm) (values differ) | IP65 | — |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | — |
| Commercial | ||
| Price (USD) (values differ) | $19,000–$84,900 USD | $67,730 USD |
| Warranty (values differ) | 2 yrs | 1 yrs |
| Service Network (values differ) | global | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Verified Deployments, Path Accuracy, Max TCP Speed, Cycle Time (25/305/25), MTBF, Duty Cycle, Vibration Damping, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Programming Languages, Teach Pendant Type, Offline Programming, Digital Twin Support, Communication Protocols, ROS-Industrial Support, IoT / Cloud Platform, Cybersecurity Certs, Predictive Maintenance, Tool Flange Standard, Tool Changer (ISO), Internal Cable Routing, Pneumatic Lines, Electrical Lines, Spare Parts Lead Time, Expected Service Life
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 | KR 120 R3900-2 K | Wheel Version Intelligent Quadruped Robot -… |
|---|---|---|
| Investment | $51,950 | $67,730 |
| Payback period | 12.5 mo | 16.3 mo |
| Net savings (5 yr) | $198,050 | $182,270 |
| ROI (5 yr) | +381% | +269% |
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 KR 120 R3900-2 K and Wheel Version Intelligent Quadruped Robot - Stellar Explorer?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. Wheel Version Intelligent Quadruped Robot - Stellar Explorer is made by Norsat.
Are KR 120 R3900-2 K and Wheel Version Intelligent Quadruped Robot - Stellar Explorer 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 KR 120 R3900-2 K and Wheel Version Intelligent Quadruped Robot - Stellar Explorer?
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
Want to be notified when specs or pricing change for these robots? Drop your email.
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About this comparison
KR 120 R3900-2 K vs Wheel Version Intelligent Quadruped Robot - Stellar Explorer 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 Score is calculated.