ABB IRB 120 FlexMove vs KR 120 R3900-2 K C01
Side-by-side comparison of ABB IRB 120 FlexMove (ABB) and KR 120 R3900-2 K C01 (KUKA Robotics) — specs, pricing, Robo Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Last-Mile Delivery buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- ABB IRB 120 FlexMoveSwitzerland
- KR 120 R3900-2 K C01Germany
Year First Available
- ABB IRB 120 FlexMove2018
- KR 120 R3900-2 K C01—
Verified Deployments
- ABB IRB 120 FlexMove0 Deployments
- KR 120 R3900-2 K C010 Deployments
Layer 2: Operational
Price
- ABB IRB 120 FlexMove$65,000 USD
- KR 120 R3900-2 K C01$19,000 USD
Availability Status
- ABB IRB 120 FlexMoveACTIVE
- KR 120 R3900-2 K C01ACTIVE
Arm Mechanics
Payload
- ABB IRB 120 FlexMove12 kg
- KR 120 R3900-2 K C01120 kg
IP Rating (Arm)
- ABB IRB 120 FlexMoveIP54
- KR 120 R3900-2 K C01IP65
Reach
- ABB IRB 120 FlexMove900 mm
- KR 120 R3900-2 K C013,100 mm
Degrees of Freedom
- ABB IRB 120 FlexMove6
- KR 120 R3900-2 K C016
Repeatability
- ABB IRB 120 FlexMove±0.03 mm
- KR 120 R3900-2 K C01±0.05 mm
Path Accuracy
- ABB IRB 120 FlexMove±0.1 mm
- KR 120 R3900-2 K C01—
Robot Weight
- ABB IRB 120 FlexMove35 kg
- KR 120 R3900-2 K C011,280 kg
IP Rating (Wrist)
- ABB IRB 120 FlexMove—
- KR 120 R3900-2 K C01IP65/IP67
Performance
MTBF
- ABB IRB 120 FlexMove50,000 hrs
- KR 120 R3900-2 K C01400,000 hrs
Duty Cycle
- ABB IRB 120 FlexMove24 7 continuous
- KR 120 R3900-2 K C01continuous 24 7
Safety
Dual Check Safety
- ABB IRB 120 FlexMoveYes
- KR 120 R3900-2 K C01—
Safety I/O Pairs
- ABB IRB 120 FlexMove2
- KR 120 R3900-2 K C01—
Controller & Programming
Controller Model
- ABB IRB 120 FlexMoveOmniCore™
- KR 120 R3900-2 K C01KR C5; KR C4
Programming Languages
- ABB IRB 120 FlexMoveRAPID
- KR 120 R3900-2 K C01KRL
Teach Pendant Type
- ABB IRB 120 FlexMovewired touch
- KR 120 R3900-2 K C01smart pad
Offline Programming
- ABB IRB 120 FlexMoveRobotStudio
- KR 120 R3900-2 K C01KUKA.Sim
Digital Twin Support
- ABB IRB 120 FlexMoveYes
- KR 120 R3900-2 K C01—
Connectivity
IoT / Cloud Platform
- ABB IRB 120 FlexMoveABB Ability
- KR 120 R3900-2 K C01KUKA Connect
Predictive Maintenance
- ABB IRB 120 FlexMovethreshold based
- KR 120 R3900-2 K C01—
End-Effector
Tool Flange Standard
- ABB IRB 120 FlexMoveiso 9283
- KR 120 R3900-2 K C01ISO 9409-1
Tool Changer (ISO)
- ABB IRB 120 FlexMove—
- KR 120 R3900-2 K C01none
Internal Cable Routing
- ABB IRB 120 FlexMovethrough arm and wrist
- KR 120 R3900-2 K C01through arm and wrist
Pneumatic Lines
- ABB IRB 120 FlexMove1
- KR 120 R3900-2 K C01—
Commercial
Price (USD)
- ABB IRB 120 FlexMove$65,000 USD
- KR 120 R3900-2 K C01$19,000 USD
Warranty
- ABB IRB 120 FlexMove1 yrs
- KR 120 R3900-2 K C01—
Service Network
- ABB IRB 120 FlexMoveglobal
- KR 120 R3900-2 K C01global
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Switzerland | Germany |
| Year First Available (values differ) | 2018 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $65,000 USD | $19,000 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Last-Mile Delivery buyers) (values differ) | 12 kg | 120 kg |
| IP Rating (Arm) (priority for Last-Mile Delivery buyers) (values differ) | IP54 | IP65 |
| Reach (values differ) | 900 mm | 3,100 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.03 mm | ±0.05 mm |
| Path Accuracy (values differ) | ±0.1 mm | — |
| Robot Weight (values differ) | 35 kg | 1,280 kg |
| IP Rating (Wrist) (values differ) | — | IP65/IP67 |
| Performance | ||
| MTBF (values differ) | 50,000 hrs | 400,000 hrs |
| Duty Cycle (values differ) | 24 7 continuous | continuous 24 7 |
| Safety | ||
| Dual Check Safety (values differ) | Yes | — |
| Safety I/O Pairs (values differ) | 2 | — |
| Controller & Programming | ||
| Controller Model (values differ) | OmniCore™ | KR C5; KR C4 |
| Programming Languages (values differ) | RAPID | KRL |
| Teach Pendant Type (values differ) | wired touch | smart pad |
| Offline Programming (values differ) | RobotStudio | KUKA.Sim |
| Digital Twin Support (values differ) | Yes | — |
| Connectivity | ||
| IoT / Cloud Platform (values differ) | ABB Ability | KUKA Connect |
| Predictive Maintenance (values differ) | threshold based | — |
| End-Effector | ||
| Tool Flange Standard (values differ) | iso 9283 | ISO 9409-1 |
| Tool Changer (ISO) (values differ) | — | none |
| Internal Cable Routing | through arm and wrist | through arm and wrist |
| Pneumatic Lines (values differ) | 1 | — |
| Commercial | ||
| Price (USD) (values differ) | $65,000 USD | $19,000 USD |
| Warranty (values differ) | 1 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, Max TCP Speed, Cycle Time (25/305/25), Vibration Damping, Safety Category, E-Stop Response, Safe Zone Count, Communication Protocols, ROS-Industrial Support, Cybersecurity Certs, 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 | ABB IRB 120 FlexMove | KR 120 R3900-2 K C01 |
|---|---|---|
| Investment | $65,000 | $19,000 |
| Payback period | 15.6 mo | 4.6 mo |
| Net savings (5 yr) | $185,000 | $231,000 |
| ROI (5 yr) | +285% | +1216% |
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 ABB IRB 120 FlexMove and KR 120 R3900-2 K C01?
ABB IRB 120 FlexMove is made by ABB, based in CH. KR 120 R3900-2 K C01 is made by KUKA Robotics, based in DE.
How much does ABB IRB 120 FlexMove cost compared to KR 120 R3900-2 K C01?
ABB IRB 120 FlexMove is listed at $65,000. KR 120 R3900-2 K C01 is listed at $19,000.
How do ABB IRB 120 FlexMove and KR 120 R3900-2 K C01 compare on the Robo Score?
ABB IRB 120 FlexMove scores 72.8 on the Robo Score. KR 120 R3900-2 K C01 scores 60.6. 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 ABB IRB 120 FlexMove compare to KR 120 R3900-2 K C01?
ABB IRB 120 FlexMove has a reach of 580 mm. KR 120 R3900-2 K C01 has a reach of 3100 mm.
Are ABB IRB 120 FlexMove and KR 120 R3900-2 K C01 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 ABB IRB 120 FlexMove and KR 120 R3900-2 K C01?
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
ABB IRB 120 FlexMove vs KR 120 R3900-2 K C01 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.