KR 120 R3900-2 K vs KR Series
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and KR Series (Kassow Robots ApS) — 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
- KR SeriesDenmark
Year First Available
- KR 120 R3900-2 K2015
- KR Series2026
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- KR Series0 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- KR SeriesContact for quote
Availability Status
- KR 120 R3900-2 KACTIVE
- KR SeriesACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- KR Series18 kg
Robot Weight
- KR 120 R3900-2 K42 kg
- KR Series34 kg
Reach
- KR 120 R3900-2 K3,904 mm
- KR Series1,000 mm
Degrees of Freedom
- KR 120 R3900-2 K6
- KR Series7
Repeatability
- KR 120 R3900-2 K±0.04 mm
- KR Series±0.1 mm
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- KR SeriesIP54
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- KR Series—
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- KR Series—
Teach Pendant Type
- KR 120 R3900-2 K—
- KR SeriesBackdrive Teach Pendant
Offline Programming
- KR 120 R3900-2 K—
- KR SeriesREMII
Digital Twin Support
- KR 120 R3900-2 K—
- KR SeriesYes
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- KR SeriesContact for quote
Warranty
- KR 120 R3900-2 K2 yrs
- KR Series—
Service Network
- KR 120 R3900-2 Kglobal
- KR Series—
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Germany | Denmark |
| Year First Available (values differ) | 2015 | 2026 |
| 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 | ||
| Payload (priority for Hospitality & F&B buyers) (values differ) | 146 kg | 18 kg |
| Robot Weight (priority for Hospitality & F&B buyers) (values differ) | 42 kg | 34 kg |
| Reach (values differ) | 3,904 mm | 1,000 mm |
| Degrees of Freedom (values differ) | 6 | 7 |
| Repeatability (values differ) | ±0.04 mm | ±0.1 mm |
| IP Rating (Arm) (values differ) | IP65 | IP54 |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | — |
| Teach Pendant Type (values differ) | — | Backdrive Teach Pendant |
| Offline Programming (values differ) | — | REMII |
| Digital Twin Support (values differ) | — | Yes |
| Commercial | ||
| Price (USD) (values differ) | $19,000–$84,900 USD | Contact for quote |
| Warranty (values differ) | 2 yrs | — |
| Service Network (values differ) | 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, Duty Cycle, Vibration Damping, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Programming Languages, Communication Protocols, ROS-Industrial Support, 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 | KR 120 R3900-2 K | KR Series |
|---|---|---|
| Investment | $51,950 | No price |
| Payback period | 12.5 mo | — |
| Net savings (5 yr) | $198,050 | — |
| ROI (5 yr) | +381% | — |
KR Series 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 Series?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. KR Series is made by Kassow Robots ApS, based in DK.
When were KR 120 R3900-2 K and KR Series launched?
KR 120 R3900-2 K launched in 2015. KR Series launched in 2026.
How do KR 120 R3900-2 K and KR Series compare on the Robo Index?
KR 120 R3900-2 K grades AAA on the Robo Index. KR Series grades A. 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 KR Series?
KR 120 R3900-2 K has a reach of 3904 mm. KR Series has a reach of 1000 mm.
Are KR 120 R3900-2 K and KR Series 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 Series?
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 Series 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.