ECR5-900 vs KR 120 R3900-2 K
Side-by-side comparison of ECR5-900 (EFORT Intelligent Equipment Co., Ltd.) and KR 120 R3900-2 K (KUKA Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Home & Household buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- ECR5-900China
- KR 120 R3900-2 KGermany
Year First Available
- ECR5-9002019
- KR 120 R3900-2 K2015
Verified Deployments
- ECR5-9000 Deployments
- KR 120 R3900-2 K0 Deployments
Layer 2: Operational
Price
- ECR5-900$2,999–$3,999 USD
- KR 120 R3900-2 K$19,000–$84,900 USD
Availability Status
- ECR5-900ACTIVE
- KR 120 R3900-2 KACTIVE
Arm Mechanics
Robot Weight
- ECR5-90020.5 kg
- KR 120 R3900-2 K42 kg
Payload
- ECR5-9005 kg
- KR 120 R3900-2 K146 kg
Reach
- ECR5-900928 mm
- KR 120 R3900-2 K3,904 mm
Degrees of Freedom
- ECR5-9006
- KR 120 R3900-2 K6
Repeatability
- ECR5-900±0.03 mm
- KR 120 R3900-2 K±0.04 mm
IP Rating (Arm)
- ECR5-900IP54
- KR 120 R3900-2 KIP65
IP Rating (Wrist)
- ECR5-900—
- KR 120 R3900-2 KIP67
Performance
Duty Cycle
- ECR5-900continuous 24 7
- KR 120 R3900-2 K—
Safety
Safe Zone Count
- ECR5-9008
- KR 120 R3900-2 K—
Controller & Programming
Controller Model
- ECR5-900M-Cabinet, S-Cabinet, C-Cabinet, Explosion Protection - Cabinet, Collaborate - Cabinet
- KR 120 R3900-2 KKR C5, KR C5 micro
Programming Languages
- ECR5-900RPL
- KR 120 R3900-2 K—
Teach Pendant Type
- ECR5-900wired touch
- KR 120 R3900-2 K—
Connectivity
ROS-Industrial Support
- ECR5-900vendor supported
- KR 120 R3900-2 K—
Commercial
Price (USD)
- ECR5-900$2,999–$3,999 USD
- KR 120 R3900-2 K$19,000–$84,900 USD
Warranty
- ECR5-900—
- KR 120 R3900-2 K2 yrs
Service Network
- ECR5-900regional
- KR 120 R3900-2 Kglobal
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | China | Germany |
| Year First Available (values differ) | 2019 | 2015 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $2,999–$3,999 USD | $19,000–$84,900 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Robot Weight (priority for Home & Household buyers) (values differ) | 20.5 kg | 42 kg |
| Payload (values differ) | 5 kg | 146 kg |
| Reach (values differ) | 928 mm | 3,904 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.03 mm | ±0.04 mm |
| IP Rating (Arm) (values differ) | IP54 | IP65 |
| IP Rating (Wrist) (values differ) | — | IP67 |
| Performance | ||
| Duty Cycle (values differ) | continuous 24 7 | — |
| Safety | ||
| Safe Zone Count (values differ) | 8 | — |
| Controller & Programming | ||
| Controller Model (values differ) | M-Cabinet, S-Cabinet, C-Cabinet, Explosion Protection - Cabinet, Collaborate - Cabinet | KR C5, KR C5 micro |
| Programming Languages (values differ) | RPL | — |
| Teach Pendant Type (values differ) | wired touch | — |
| Connectivity | ||
| ROS-Industrial Support (values differ) | vendor supported | — |
| Commercial | ||
| Price (USD) (values differ) | $2,999–$3,999 USD | $19,000–$84,900 USD |
| Warranty (values differ) | — | 2 yrs |
| Service Network (values differ) | regional | 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, Offline Programming, Digital Twin Support, 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 | ECR5-900 | KR 120 R3900-2 K |
|---|---|---|
| Investment | $3,499 | $51,950 |
| Payback period | < 1 mo | 12.5 mo |
| Net savings (5 yr) | $246,501 | $198,050 |
| ROI (5 yr) | +7045% | +381% |
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 ECR5-900 and KR 120 R3900-2 K?
ECR5-900 is made by EFORT Intelligent Equipment Co., Ltd., based in CN. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.
When were ECR5-900 and KR 120 R3900-2 K launched?
ECR5-900 launched in 2019. KR 120 R3900-2 K launched in 2015.
How do ECR5-900 and KR 120 R3900-2 K compare on the Robo Index?
ECR5-900 grades AA 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.
How does the reach of ECR5-900 compare to KR 120 R3900-2 K?
ECR5-900 has a reach of 928 mm. KR 120 R3900-2 K has a reach of 3904 mm.
Are ECR5-900 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 ECR5-900 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
ECR5-900 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.