ABB IRB-4600 vs KR 120 R3900-2 K
Side-by-side comparison of ABB IRB-4600 (ABB) and KR 120 R3900-2 K (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-4600Switzerland
- KR 120 R3900-2 KGermany
Year First Available
- ABB IRB-46002015
- KR 120 R3900-2 K2015
Verified Deployments
- ABB IRB-46000 Deployments
- KR 120 R3900-2 K0 Deployments
Layer 2: Operational
Price
- ABB IRB-4600Contact for quote
- KR 120 R3900-2 K$19,000–$84,900 USD
Availability Status
- ABB IRB-4600ACTIVE
- KR 120 R3900-2 KACTIVE
Arm Mechanics
Payload
- ABB IRB-460060 kg
- KR 120 R3900-2 K146 kg
IP Rating (Arm)
- ABB IRB-4600IP67
- KR 120 R3900-2 KIP65
Reach
- ABB IRB-46002,550 mm
- KR 120 R3900-2 K3,904 mm
Degrees of Freedom
- ABB IRB-46006
- KR 120 R3900-2 K6
Repeatability
- ABB IRB-4600±0.05 mm
- KR 120 R3900-2 K±0.04 mm
Path Accuracy
- ABB IRB-4600±0.5 mm
- KR 120 R3900-2 K—
Robot Weight
- ABB IRB-4600235 kg
- KR 120 R3900-2 K42 kg
IP Rating (Wrist)
- ABB IRB-4600IP67
- KR 120 R3900-2 KIP67
Performance
Cycle Time (25/305/25)
- ABB IRB-46000.4 s
- KR 120 R3900-2 K—
MTBF
- ABB IRB-4600100,000 hrs
- KR 120 R3900-2 K—
Duty Cycle
- ABB IRB-4600continuous 24 7
- KR 120 R3900-2 K—
Vibration Damping
- ABB IRB-4600active model based
- KR 120 R3900-2 K—
Safety
Safety Category
- ABB IRB-4600Cat.3 PLd
- KR 120 R3900-2 K—
Dual Check Safety
- ABB IRB-4600Yes
- KR 120 R3900-2 K—
Safety I/O Pairs
- ABB IRB-46008
- KR 120 R3900-2 K—
E-Stop Response
- ABB IRB-460010 ms
- KR 120 R3900-2 K—
Safe Zone Count
- ABB IRB-46003
- KR 120 R3900-2 K—
Controller & Programming
Controller Model
- ABB IRB-4600OmniCore
- KR 120 R3900-2 KKR C5, KR C5 micro
Programming Languages
- ABB IRB-4600TP, KAREL
- KR 120 R3900-2 K—
Teach Pendant Type
- ABB IRB-4600smart pad
- KR 120 R3900-2 K—
Offline Programming
- ABB IRB-4600ROBOGUIDE
- KR 120 R3900-2 K—
Digital Twin Support
- ABB IRB-4600Yes
- KR 120 R3900-2 K—
Connectivity
ROS-Industrial Support
- ABB IRB-4600vendor supported
- KR 120 R3900-2 K—
IoT / Cloud Platform
- ABB IRB-4600FANUC ZDT
- KR 120 R3900-2 K—
Cybersecurity Certs
- ABB IRB-4600IEC 62443 SL1
- KR 120 R3900-2 K—
Predictive Maintenance
- ABB IRB-4600threshold based
- KR 120 R3900-2 K—
End-Effector
Tool Flange Standard
- ABB IRB-4600ISO 9409-1
- KR 120 R3900-2 K—
Tool Changer (ISO)
- ABB IRB-4600ATI
- KR 120 R3900-2 K—
Internal Cable Routing
- ABB IRB-4600through arm and wrist
- KR 120 R3900-2 K—
Pneumatic Lines
- ABB IRB-46002
- KR 120 R3900-2 K—
Electrical Lines
- ABB IRB-460012
- KR 120 R3900-2 K—
Commercial
Price (USD)
- ABB IRB-4600Contact for quote
- KR 120 R3900-2 K$19,000–$84,900 USD
Warranty
- ABB IRB-46001 yrs
- KR 120 R3900-2 K2 yrs
Service Network
- ABB IRB-4600global
- KR 120 R3900-2 Kglobal
Spare Parts Lead Time
- ABB IRB-460014 days
- KR 120 R3900-2 K—
Expected Service Life
- ABB IRB-460010 yrs
- KR 120 R3900-2 K—
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Switzerland | Germany |
| Year First Available | 2015 | 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 | ||
| Payload (priority for Last-Mile Delivery buyers) (values differ) | 60 kg | 146 kg |
| IP Rating (Arm) (priority for Last-Mile Delivery buyers) (values differ) | IP67 | IP65 |
| Reach (values differ) | 2,550 mm | 3,904 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.05 mm | ±0.04 mm |
| Path Accuracy (values differ) | ±0.5 mm | — |
| Robot Weight (values differ) | 235 kg | 42 kg |
| IP Rating (Wrist) | IP67 | IP67 |
| Performance | ||
| Cycle Time (25/305/25) (values differ) | 0.4 s | — |
| MTBF (values differ) | 100,000 hrs | — |
| Duty Cycle (values differ) | continuous 24 7 | — |
| Vibration Damping (values differ) | active model based | — |
| Safety | ||
| Safety Category (values differ) | Cat.3 PLd | — |
| Dual Check Safety (values differ) | Yes | — |
| Safety I/O Pairs (values differ) | 8 | — |
| E-Stop Response (values differ) | 10 ms | — |
| Safe Zone Count (values differ) | 3 | — |
| Controller & Programming | ||
| Controller Model (values differ) | OmniCore | KR C5, KR C5 micro |
| Programming Languages (values differ) | TP, KAREL | — |
| Teach Pendant Type (values differ) | smart pad | — |
| Offline Programming (values differ) | ROBOGUIDE | — |
| Digital Twin Support (values differ) | Yes | — |
| Connectivity | ||
| ROS-Industrial Support (values differ) | vendor supported | — |
| IoT / Cloud Platform (values differ) | FANUC ZDT | — |
| Cybersecurity Certs (values differ) | IEC 62443 SL1 | — |
| Predictive Maintenance (values differ) | threshold based | — |
| End-Effector | ||
| Tool Flange Standard (values differ) | ISO 9409-1 | — |
| Tool Changer (ISO) (values differ) | ATI | — |
| Internal Cable Routing (values differ) | through arm and wrist | — |
| Pneumatic Lines (values differ) | 2 | — |
| Electrical Lines (values differ) | 12 | — |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $19,000–$84,900 USD |
| Warranty (values differ) | 1 yrs | 2 yrs |
| Service Network | global | global |
| Spare Parts Lead Time (values differ) | 14 days | — |
| Expected Service Life (values differ) | 10 yrs | — |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, Max TCP Speed, Communication Protocols
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-4600 | 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% |
ABB IRB-4600 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 ABB IRB-4600 and KR 120 R3900-2 K?
ABB IRB-4600 is made by ABB, based in CH. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.
When were ABB IRB-4600 and KR 120 R3900-2 K launched?
ABB IRB-4600 launched in 2015. KR 120 R3900-2 K launched in 2015.
How do ABB IRB-4600 and KR 120 R3900-2 K compare on the Robo Score?
ABB IRB-4600 scores 72.8 on the Robo Score. KR 120 R3900-2 K scores 78.0. 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 ABB IRB-4600 compare to KR 120 R3900-2 K?
ABB IRB-4600 has a reach of 1811 mm. KR 120 R3900-2 K has a reach of 3904 mm.
Are ABB IRB-4600 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 ABB IRB-4600 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
ABB IRB-4600 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 Score is calculated.