KR 120 R3900-2 K vs KR AGILUS sixx
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and KR AGILUS sixx (KUKA Robotics) — specs, pricing, Robo Score, 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
- KR 120 R3900-2 KGermany
- KR AGILUS sixxGermany
Year First Available
- KR 120 R3900-2 K2015
- KR AGILUS sixx2020
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- KR AGILUS sixx0 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- KR AGILUS sixxContact for quote
Availability Status
- KR 120 R3900-2 KACTIVE
- KR AGILUS sixxACTIVE
Arm Mechanics
Robot Weight
- KR 120 R3900-2 K42 kg
- KR AGILUS sixx—
Payload
- KR 120 R3900-2 K146 kg
- KR AGILUS sixx10 kg
Reach
- KR 120 R3900-2 K3,904 mm
- KR AGILUS sixx1,100 mm
Degrees of Freedom
- KR 120 R3900-2 K6
- KR AGILUS sixx6
Repeatability
- KR 120 R3900-2 K±0.04 mm
- KR AGILUS sixx±0.03 mm
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- KR AGILUS sixx—
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- KR AGILUS sixx—
Performance
Duty Cycle
- KR 120 R3900-2 K—
- KR AGILUS sixxcontinuous 24 7
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- KR AGILUS sixxKUKA Controller
Programming Languages
- KR 120 R3900-2 K—
- KR AGILUS sixxKRL
Teach Pendant Type
- KR 120 R3900-2 K—
- KR AGILUS sixxwired touch
Offline Programming
- KR 120 R3900-2 K—
- KR AGILUS sixxKUKA.Sim
Connectivity
IoT / Cloud Platform
- KR 120 R3900-2 K—
- KR AGILUS sixxKUKA Connect
End-Effector
Tool Flange Standard
- KR 120 R3900-2 K—
- KR AGILUS sixxISO 9409-1
Internal Cable Routing
- KR 120 R3900-2 K—
- KR AGILUS sixxthrough arm
Pneumatic Lines
- KR 120 R3900-2 K—
- KR AGILUS sixx2
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- KR AGILUS sixxContact for quote
Warranty
- KR 120 R3900-2 K2 yrs
- KR AGILUS sixx3 yrs
Service Network
- KR 120 R3900-2 Kglobal
- KR AGILUS sixxglobal
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | Germany | Germany |
| Year First Available (values differ) | 2015 | 2020 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $19,000–$84,900 USD | Contact for quote |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Robot Weight (priority for Cleaning & Facilities buyers) (values differ) | 42 kg | — |
| Payload (priority for Cleaning & Facilities buyers) (values differ) | 146 kg | 10 kg |
| Reach (values differ) | 3,904 mm | 1,100 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.04 mm | ±0.03 mm |
| IP Rating (Arm) (values differ) | IP65 | — |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Performance | ||
| Duty Cycle (values differ) | — | continuous 24 7 |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | KUKA Controller |
| Programming Languages (values differ) | — | KRL |
| Teach Pendant Type (values differ) | — | wired touch |
| Offline Programming (values differ) | — | KUKA.Sim |
| Connectivity | ||
| IoT / Cloud Platform (values differ) | — | KUKA Connect |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | ISO 9409-1 |
| Internal Cable Routing (values differ) | — | through arm |
| Pneumatic Lines (values differ) | — | 2 |
| Commercial | ||
| Price (USD) (values differ) | $19,000–$84,900 USD | Contact for quote |
| Warranty (values differ) | 2 yrs | 3 yrs |
| Service Network | global | global |
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, Vibration Damping, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Digital Twin Support, Communication Protocols, ROS-Industrial Support, Cybersecurity Certs, Predictive Maintenance, Tool Changer (ISO), 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 | KR AGILUS sixx |
|---|---|---|
| Investment | $51,950 | No price |
| Payback period | 12.5 mo | — |
| Net savings (5 yr) | $198,050 | — |
| ROI (5 yr) | +381% | — |
KR AGILUS sixx 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 KR 120 R3900-2 K and KR AGILUS sixx?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. KR AGILUS sixx is made by KUKA Robotics, based in DE.
When were KR 120 R3900-2 K and KR AGILUS sixx launched?
KR 120 R3900-2 K launched in 2015. KR AGILUS sixx launched in 2020.
How do KR 120 R3900-2 K and KR AGILUS sixx compare on the Robo Score?
KR 120 R3900-2 K scores 78.0 on the Robo Score. KR AGILUS sixx scores 66.0. The Robo Score is a 0–100 credibility figure blending 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 KR AGILUS sixx?
KR 120 R3900-2 K has a reach of 3904 mm. KR AGILUS sixx has a reach of 1100 mm.
Are KR 120 R3900-2 K and KR AGILUS sixx 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 KR AGILUS sixx?
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 KR AGILUS sixx 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.