KR 120 R3900-2 K vs MGI Truss Robot
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and MGI Truss Robot (SIASUN) — specs, pricing, Robo Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Manufacturing buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- MGI Truss RobotChina
Year First Available
- KR 120 R3900-2 K2015
- MGI Truss Robot—
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- MGI Truss Robot0 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- MGI Truss RobotContact for quote
Availability Status
- KR 120 R3900-2 KACTIVE
- MGI Truss RobotACTIVE
Arm Mechanics
Reach
- KR 120 R3900-2 K3,904 mm
- MGI Truss Robot—
Repeatability
- KR 120 R3900-2 K±0.04 mm
- MGI Truss Robot—
Payload
- KR 120 R3900-2 K146 kg
- MGI Truss Robot5,000 kg
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- MGI Truss Robot—
Degrees of Freedom
- KR 120 R3900-2 K6
- MGI Truss Robot3
Max TCP Speed
- KR 120 R3900-2 K—
- MGI Truss Robot4 m/s
Robot Weight
- KR 120 R3900-2 K42 kg
- MGI Truss Robot—
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- MGI Truss Robot—
Performance
Duty Cycle
- KR 120 R3900-2 K—
- MGI Truss Robotcontinuous 24 7
Vibration Damping
- KR 120 R3900-2 K—
- MGI Truss Robotnone
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- MGI Truss RobotHRS-1500
Programming Languages
- KR 120 R3900-2 K—
- MGI Truss Robotproprietary
Teach Pendant Type
- KR 120 R3900-2 K—
- MGI Truss Robotwired touch
Connectivity
ROS-Industrial Support
- KR 120 R3900-2 K—
- MGI Truss Robotnone
End-Effector
Tool Flange Standard
- KR 120 R3900-2 K—
- MGI Truss RobotISO 9409-1
Internal Cable Routing
- KR 120 R3900-2 K—
- MGI Truss Robotthrough arm
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- MGI Truss RobotContact for quote
Warranty
- KR 120 R3900-2 K2 yrs
- MGI Truss Robot—
Service Network
- KR 120 R3900-2 Kglobal
- MGI Truss Robotregional
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Germany | China |
| 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 | ||
| Reach (priority for Manufacturing buyers) (values differ) | 3,904 mm | — |
| Repeatability (priority for Manufacturing buyers) (values differ) | ±0.04 mm | — |
| Payload (priority for Manufacturing buyers) (values differ) | 146 kg | 5,000 kg |
| IP Rating (Arm) (priority for Manufacturing buyers) (values differ) | IP65 | — |
| Degrees of Freedom (values differ) | 6 | 3 |
| Max TCP Speed (values differ) | — | 4 m/s |
| Robot Weight (values differ) | 42 kg | — |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Performance | ||
| Duty Cycle (values differ) | — | continuous 24 7 |
| Vibration Damping (values differ) | — | none |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | HRS-1500 |
| Programming Languages (values differ) | — | proprietary |
| Teach Pendant Type (values differ) | — | wired touch |
| Connectivity | ||
| ROS-Industrial Support (values differ) | — | none |
| 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 | — |
| Service Network (values differ) | global | regional |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Battery / Shift Runtime, Path Accuracy, Cycle Time (25/305/25), MTBF, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Offline Programming, Digital Twin Support, Communication Protocols, IoT / Cloud Platform, Cybersecurity Certs, Predictive Maintenance, 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 | MGI Truss Robot |
|---|---|---|
| Investment | $51,950 | No price |
| Payback period | 12.5 mo | — |
| Net savings (5 yr) | $198,050 | — |
| ROI (5 yr) | +381% | — |
MGI Truss Robot 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 MGI Truss Robot?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. MGI Truss Robot is made by SIASUN, based in CN.
How do KR 120 R3900-2 K and MGI Truss Robot compare on the Robo Score?
KR 120 R3900-2 K scores 78.0 on the Robo Score. MGI Truss Robot scores 61.0. 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.
Are KR 120 R3900-2 K and MGI Truss Robot 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 MGI Truss Robot?
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 MGI Truss Robot 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.