FlexLink RI20 vs KR 120 R3900-2 K
Side-by-side comparison of FlexLink RI20 (FlexLink Systems Inc.) and KR 120 R3900-2 K (KUKA Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Agriculture buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- FlexLink RI20Sweden
- KR 120 R3900-2 KGermany
Year First Available
- FlexLink RI202020
- KR 120 R3900-2 K2015
Verified Deployments
- FlexLink RI200 Deployments
- KR 120 R3900-2 K0 Deployments
Layer 2: Operational
Price
- FlexLink RI20Contact for quote
- KR 120 R3900-2 K$19,000–$84,900 USD
Availability Status
- FlexLink RI20ACTIVE
- KR 120 R3900-2 KACTIVE
Arm Mechanics
IP Rating (Arm)
- FlexLink RI20—
- KR 120 R3900-2 KIP65
Payload
- FlexLink RI2015 kg
- KR 120 R3900-2 K146 kg
Reach
- FlexLink RI20—
- KR 120 R3900-2 K3,904 mm
Degrees of Freedom
- FlexLink RI20—
- KR 120 R3900-2 K6
Repeatability
- FlexLink RI20—
- KR 120 R3900-2 K±0.04 mm
Max TCP Speed
- FlexLink RI200.2 m/s
- KR 120 R3900-2 K—
Robot Weight
- FlexLink RI203,000 kg
- KR 120 R3900-2 K42 kg
IP Rating (Wrist)
- FlexLink RI20—
- KR 120 R3900-2 KIP67
Performance
Duty Cycle
- FlexLink RI20continuous 24 7
- KR 120 R3900-2 K—
Controller & Programming
Controller Model
- FlexLink RI20—
- KR 120 R3900-2 KKR C5, KR C5 micro
Teach Pendant Type
- FlexLink RI20tablet-style
- KR 120 R3900-2 K—
Offline Programming
- FlexLink RI20FlexLink Design Tool
- KR 120 R3900-2 K—
Digital Twin Support
- FlexLink RI20No
- KR 120 R3900-2 K—
Connectivity
ROS-Industrial Support
- FlexLink RI20none
- KR 120 R3900-2 K—
Commercial
Price (USD)
- FlexLink RI20Contact for quote
- KR 120 R3900-2 K$19,000–$84,900 USD
Warranty
- FlexLink RI20—
- KR 120 R3900-2 K2 yrs
Service Network
- FlexLink RI20global
- KR 120 R3900-2 Kglobal
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Sweden | Germany |
| Year First Available (values differ) | 2020 | 2015 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | Contact for quote | $19,000–$84,900 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| IP Rating (Arm) (priority for Agriculture buyers) (values differ) | — | IP65 |
| Payload (priority for Agriculture buyers) (values differ) | 15 kg | 146 kg |
| Reach (values differ) | — | 3,904 mm |
| Degrees of Freedom (values differ) | — | 6 |
| Repeatability (values differ) | — | ±0.04 mm |
| Max TCP Speed (values differ) | 0.2 m/s | — |
| Robot Weight (values differ) | 3,000 kg | 42 kg |
| 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 |
| Teach Pendant Type (values differ) | tablet-style | — |
| Offline Programming (values differ) | FlexLink Design Tool | — |
| Digital Twin Support (values differ) | No | — |
| Connectivity | ||
| ROS-Industrial Support (values differ) | none | — |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $19,000–$84,900 USD |
| Warranty (values differ) | — | 2 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, Cycle Time (25/305/25), MTBF, Vibration Damping, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Programming Languages, Communication Protocols, 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 | FlexLink RI20 | 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% |
FlexLink RI20 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 FlexLink RI20 and KR 120 R3900-2 K?
FlexLink RI20 is made by FlexLink Systems Inc., based in SE. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.
When were FlexLink RI20 and KR 120 R3900-2 K launched?
FlexLink RI20 launched in 2020. KR 120 R3900-2 K launched in 2015.
How do FlexLink RI20 and KR 120 R3900-2 K compare on the Robo Index?
FlexLink RI20 grades A 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.
Are FlexLink RI20 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 FlexLink RI20 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
FlexLink RI20 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.