KR 120 R3900-2 K vs YASAKAWA/MOTOMAN GP 50
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and YASAKAWA/MOTOMAN GP 50 (YASAKAWA) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Hospitality & F&B buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- YASAKAWA/MOTOMAN GP 50—
Year First Available
- KR 120 R3900-2 K2015
- YASAKAWA/MOTOMAN GP 50—
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- YASAKAWA/MOTOMAN GP 500 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- YASAKAWA/MOTOMAN GP 50$30,000–$39,900 USD
Availability Status
- KR 120 R3900-2 KACTIVE
- YASAKAWA/MOTOMAN GP 50ACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- YASAKAWA/MOTOMAN GP 5050 kg
Robot Weight
- KR 120 R3900-2 K42 kg
- YASAKAWA/MOTOMAN GP 50570 kg
Reach
- KR 120 R3900-2 K3,904 mm
- YASAKAWA/MOTOMAN GP 502,061 mm
Degrees of Freedom
- KR 120 R3900-2 K6
- YASAKAWA/MOTOMAN GP 506
Repeatability
- KR 120 R3900-2 K±0.04 mm
- YASAKAWA/MOTOMAN GP 50±0.03 mm
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- YASAKAWA/MOTOMAN GP 50IP54
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- YASAKAWA/MOTOMAN GP 50IP67
Performance
Duty Cycle
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50not specified
Vibration Damping
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50active model based
Safety
Safety Category
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50Cat.3 PLd
Dual Check Safety
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50Yes
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- YASAKAWA/MOTOMAN GP 50YRC1000
Programming Languages
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50INFORM
Teach Pendant Type
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50wired touch
Offline Programming
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50MotoSim
Digital Twin Support
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50Yes
Connectivity
ROS-Industrial Support
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50vendor supported
IoT / Cloud Platform
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50Yaskawa Cockpit
Cybersecurity Certs
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50IEC 62443 SL1, IEC 62443 SL2
Predictive Maintenance
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50ml based
End-Effector
Tool Flange Standard
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50ISO 9409-1
Tool Changer (ISO)
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50proprietary
Internal Cable Routing
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 50through arm and wrist
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- YASAKAWA/MOTOMAN GP 50$30,000–$39,900 USD
Warranty
- KR 120 R3900-2 K2 yrs
- YASAKAWA/MOTOMAN GP 50—
Service Network
- KR 120 R3900-2 Kglobal
- YASAKAWA/MOTOMAN GP 50global
Expected Service Life
- KR 120 R3900-2 K—
- YASAKAWA/MOTOMAN GP 5015 yrs
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Germany | — |
| Year First Available (values differ) | 2015 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $19,000–$84,900 USD | $30,000–$39,900 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Hospitality & F&B buyers) (values differ) | 146 kg | 50 kg |
| Robot Weight (priority for Hospitality & F&B buyers) (values differ) | 42 kg | 570 kg |
| Reach (values differ) | 3,904 mm | 2,061 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.04 mm | ±0.03 mm |
| IP Rating (Arm) (values differ) | IP65 | IP54 |
| IP Rating (Wrist) | IP67 | IP67 |
| Performance | ||
| Duty Cycle (values differ) | — | not specified |
| Vibration Damping (values differ) | — | active model based |
| Safety | ||
| Safety Category (values differ) | — | Cat.3 PLd |
| Dual Check Safety (values differ) | — | Yes |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | YRC1000 |
| Programming Languages (values differ) | — | INFORM |
| Teach Pendant Type (values differ) | — | wired touch |
| Offline Programming (values differ) | — | MotoSim |
| Digital Twin Support (values differ) | — | Yes |
| Connectivity | ||
| ROS-Industrial Support (values differ) | — | vendor supported |
| IoT / Cloud Platform (values differ) | — | Yaskawa Cockpit |
| Cybersecurity Certs (values differ) | — | IEC 62443 SL1, 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 |
| Commercial | ||
| Price (USD) (values differ) | $19,000–$84,900 USD | $30,000–$39,900 USD |
| Warranty (values differ) | 2 yrs | — |
| Service Network | global | global |
| 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), MTBF, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Communication Protocols, Pneumatic Lines, Electrical Lines, Spare Parts Lead Time
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 | YASAKAWA/MOTOMAN GP 50 |
|---|---|---|
| Investment | $51,950 | $34,950 |
| Payback period | 12.5 mo | 8.4 mo |
| Net savings (5 yr) | $198,050 | $215,050 |
| ROI (5 yr) | +381% | +615% |
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 YASAKAWA/MOTOMAN GP 50?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. YASAKAWA/MOTOMAN GP 50 is made by YASAKAWA.
How do KR 120 R3900-2 K and YASAKAWA/MOTOMAN GP 50 compare on the Robo Index?
KR 120 R3900-2 K grades AAA on the Robo Index. YASAKAWA/MOTOMAN GP 50 grades AA. 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 KR 120 R3900-2 K compare to YASAKAWA/MOTOMAN GP 50?
KR 120 R3900-2 K has a reach of 3904 mm. YASAKAWA/MOTOMAN GP 50 has a reach of 2061 mm.
Are KR 120 R3900-2 K and YASAKAWA/MOTOMAN GP 50 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 YASAKAWA/MOTOMAN GP 50?
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
KR 120 R3900-2 K vs YASAKAWA/MOTOMAN GP 50 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.