KR 120 R3900-2 K vs KR 50 R2500 CR lite
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and KR 50 R2500 CR lite (KUKA Robotics) — specs, pricing, Robo Score, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- KR 50 R2500 CR liteGermany
Year First Available
- KR 120 R3900-2 K2015
- KR 50 R2500 CR lite—
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- KR 50 R2500 CR lite0 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- KR 50 R2500 CR liteContact for quote
Availability Status
- KR 120 R3900-2 KACTIVE
- KR 50 R2500 CR liteACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- KR 50 R2500 CR lite50 kg
Reach
- KR 120 R3900-2 K3,904 mm
- KR 50 R2500 CR lite2,501 mm
Degrees of Freedom
- KR 120 R3900-2 K6
- KR 50 R2500 CR lite6
Repeatability
- KR 120 R3900-2 K±0.04 mm
- KR 50 R2500 CR lite±0.05 mm
Robot Weight
- KR 120 R3900-2 K42 kg
- KR 50 R2500 CR lite559 kg
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- KR 50 R2500 CR liteIP65
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- KR 50 R2500 CR liteIP65/IP67
Performance
Duty Cycle
- KR 120 R3900-2 K—
- KR 50 R2500 CR litecontinuous 24 7
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- KR 50 R2500 CR liteKR C5; KR C4
Programming Languages
- KR 120 R3900-2 K—
- KR 50 R2500 CR liteKRL
Teach Pendant Type
- KR 120 R3900-2 K—
- KR 50 R2500 CR litewired touch
Offline Programming
- KR 120 R3900-2 K—
- KR 50 R2500 CR liteKUKA.Sim
Connectivity
ROS-Industrial Support
- KR 120 R3900-2 K—
- KR 50 R2500 CR litecommunity
IoT / Cloud Platform
- KR 120 R3900-2 K—
- KR 50 R2500 CR liteKUKA Connect
Predictive Maintenance
- KR 120 R3900-2 K—
- KR 50 R2500 CR litethreshold based
End-Effector
Tool Flange Standard
- KR 120 R3900-2 K—
- KR 50 R2500 CR liteISO 9409-1
Internal Cable Routing
- KR 120 R3900-2 K—
- KR 50 R2500 CR litethrough arm
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- KR 50 R2500 CR liteContact for quote
Warranty
- KR 120 R3900-2 K2 yrs
- KR 50 R2500 CR lite1 yrs
Service Network
- KR 120 R3900-2 Kglobal
- KR 50 R2500 CR liteglobal
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | Germany | Germany |
| Year First Available (values differ) | 2015 | — |
| 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 (values differ) | 146 kg | 50 kg |
| Reach (values differ) | 3,904 mm | 2,501 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.04 mm | ±0.05 mm |
| Robot Weight (values differ) | 42 kg | 559 kg |
| IP Rating (Arm) | IP65 | IP65 |
| IP Rating (Wrist) (values differ) | IP67 | IP65/IP67 |
| Performance | ||
| Duty Cycle (values differ) | — | continuous 24 7 |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | KR C5; KR C4 |
| Programming Languages (values differ) | — | KRL |
| Teach Pendant Type (values differ) | — | wired touch |
| Offline Programming (values differ) | — | KUKA.Sim |
| Connectivity | ||
| ROS-Industrial Support (values differ) | — | community |
| IoT / Cloud Platform (values differ) | — | KUKA Connect |
| Predictive Maintenance (values differ) | — | threshold based |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | ISO 9409-1 |
| Internal Cable Routing (values differ) | — | through arm |
| Commercial | ||
| Price (USD) (values differ) | $19,000–$84,900 USD | Contact for quote |
| Warranty (values differ) | 2 yrs | 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, 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, Cybersecurity Certs, Tool Changer (ISO), 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 50 R2500 CR lite |
|---|---|---|
| Investment | $51,950 | No price |
| Payback period | 12.5 mo | — |
| Net savings (5 yr) | $198,050 | — |
| ROI (5 yr) | +381% | — |
KR 50 R2500 CR lite 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 50 R2500 CR lite?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. KR 50 R2500 CR lite is made by KUKA Robotics, based in DE.
How do KR 120 R3900-2 K and KR 50 R2500 CR lite compare on the Robo Score?
KR 120 R3900-2 K scores 78.0 on the Robo Score. KR 50 R2500 CR lite scores 58.4. 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 50 R2500 CR lite?
KR 120 R3900-2 K has a reach of 3904 mm. KR 50 R2500 CR lite has a reach of 2501 mm.
Are KR 120 R3900-2 K and KR 50 R2500 CR lite 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 50 R2500 CR lite?
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 50 R2500 CR lite 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.