KR 120 R3900-2 K vs RSL Series SCARA Robot
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and RSL Series SCARA Robot (Risong Technology) — specs, pricing, Robo Score, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- RSL Series SCARA RobotChina
Year First Available
- KR 120 R3900-2 K2015
- RSL Series SCARA Robot—
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- RSL Series SCARA Robot0 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- RSL Series SCARA RobotContact for quote
Availability Status
- KR 120 R3900-2 KACTIVE
- RSL Series SCARA RobotACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- RSL Series SCARA Robot6 kg
Reach
- KR 120 R3900-2 K3,904 mm
- RSL Series SCARA Robot600 mm
Degrees of Freedom
- KR 120 R3900-2 K6
- RSL Series SCARA Robot4
Repeatability
- KR 120 R3900-2 K±0.04 mm
- RSL Series SCARA Robot±0.02 mm
Robot Weight
- KR 120 R3900-2 K42 kg
- RSL Series SCARA Robot13 kg
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- RSL Series SCARA RobotIP20
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- RSL Series SCARA Robot—
Performance
Duty Cycle
- KR 120 R3900-2 K—
- RSL Series SCARA Robotcontinuous 24 7
Vibration Damping
- KR 120 R3900-2 K—
- RSL Series SCARA Robotactive model based
Safety
Safety Category
- KR 120 R3900-2 K—
- RSL Series SCARA Robotother
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- RSL Series SCARA RobotRC800-A
Programming Languages
- KR 120 R3900-2 K—
- RSL Series SCARA RobotSPEL+
Teach Pendant Type
- KR 120 R3900-2 K—
- RSL Series SCARA Robotwired touch
Offline Programming
- KR 120 R3900-2 K—
- RSL Series SCARA RobotEPSON RC+ 8.0
Digital Twin Support
- KR 120 R3900-2 K—
- RSL Series SCARA RobotYes
End-Effector
Tool Flange Standard
- KR 120 R3900-2 K—
- RSL Series SCARA RobotISO 9409-1
Internal Cable Routing
- KR 120 R3900-2 K—
- RSL Series SCARA Robotthrough arm
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- RSL Series SCARA RobotContact for quote
Warranty
- KR 120 R3900-2 K2 yrs
- RSL Series SCARA Robot1 yrs
Service Network
- KR 120 R3900-2 Kglobal
- RSL Series SCARA 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 | ||
| Payload (values differ) | 146 kg | 6 kg |
| Reach (values differ) | 3,904 mm | 600 mm |
| Degrees of Freedom (values differ) | 6 | 4 |
| Repeatability (values differ) | ±0.04 mm | ±0.02 mm |
| Robot Weight (values differ) | 42 kg | 13 kg |
| IP Rating (Arm) (values differ) | IP65 | IP20 |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Performance | ||
| Duty Cycle (values differ) | — | continuous 24 7 |
| Vibration Damping (values differ) | — | active model based |
| Safety | ||
| Safety Category (values differ) | — | other |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | RC800-A |
| Programming Languages (values differ) | — | SPEL+ |
| Teach Pendant Type (values differ) | — | wired touch |
| Offline Programming (values differ) | — | EPSON RC+ 8.0 |
| Digital Twin Support (values differ) | — | Yes |
| 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 (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, Max TCP Speed, Cycle Time (25/305/25), MTBF, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Communication Protocols, ROS-Industrial Support, 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 | RSL Series SCARA Robot |
|---|---|---|
| Investment | $51,950 | No price |
| Payback period | 12.5 mo | — |
| Net savings (5 yr) | $198,050 | — |
| ROI (5 yr) | +381% | — |
RSL Series SCARA 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 RSL Series SCARA Robot?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. RSL Series SCARA Robot is made by Risong Technology, based in CN.
How do KR 120 R3900-2 K and RSL Series SCARA Robot compare on the Robo Score?
KR 120 R3900-2 K scores 78.0 on the Robo Score. RSL Series SCARA Robot scores 56.1. 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 RSL Series SCARA Robot?
KR 120 R3900-2 K has a reach of 3904 mm. RSL Series SCARA Robot has a reach of 600 mm.
Are KR 120 R3900-2 K and RSL Series SCARA 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 RSL Series SCARA 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 RSL Series SCARA 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.