HIWIN Welding Robot vs KR 120 R3900-2 K
Side-by-side comparison of HIWIN Welding Robot (HIWIN Corporation) and KR 120 R3900-2 K (KUKA Robotics) — specs, pricing, Robo Score, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- HIWIN Welding RobotTaiwan
- KR 120 R3900-2 KGermany
Year First Available
- HIWIN Welding Robot—
- KR 120 R3900-2 K2015
Verified Deployments
- HIWIN Welding Robot0 Deployments
- KR 120 R3900-2 K0 Deployments
Layer 2: Operational
Price
- HIWIN Welding RobotContact for quote
- KR 120 R3900-2 K$19,000–$84,900 USD
Availability Status
- HIWIN Welding RobotACTIVE
- KR 120 R3900-2 KACTIVE
Arm Mechanics
Payload
- HIWIN Welding Robot12 kg
- KR 120 R3900-2 K146 kg
Reach
- HIWIN Welding Robot2,010 mm
- KR 120 R3900-2 K3,904 mm
Degrees of Freedom
- HIWIN Welding Robot6
- KR 120 R3900-2 K6
Repeatability
- HIWIN Welding Robot±0.05 mm
- KR 120 R3900-2 K±0.04 mm
Robot Weight
- HIWIN Welding Robot2,200 kg
- KR 120 R3900-2 K42 kg
IP Rating (Arm)
- HIWIN Welding RobotIP20
- KR 120 R3900-2 KIP65
IP Rating (Wrist)
- HIWIN Welding Robot—
- KR 120 R3900-2 KIP67
Performance
Duty Cycle
- HIWIN Welding Robotcontinuous 24 7
- KR 120 R3900-2 K—
Controller & Programming
Controller Model
- HIWIN Welding RobotStandard control box or Mini control box
- KR 120 R3900-2 KKR C5, KR C5 micro
Teach Pendant Type
- HIWIN Welding Robotwired touch
- KR 120 R3900-2 K—
Offline Programming
- HIWIN Welding RobotLoyalty AI Welding System (included)
- KR 120 R3900-2 K—
Digital Twin Support
- HIWIN Welding RobotYes
- KR 120 R3900-2 K—
End-Effector
Tool Flange Standard
- HIWIN Welding RobotISO 9409-1
- KR 120 R3900-2 K—
Internal Cable Routing
- HIWIN Welding Robotthrough arm and wrist
- KR 120 R3900-2 K—
Commercial
Price (USD)
- HIWIN Welding RobotContact for quote
- KR 120 R3900-2 K$19,000–$84,900 USD
Warranty
- HIWIN Welding Robot—
- KR 120 R3900-2 K2 yrs
Service Network
- HIWIN Welding Robotglobal
- KR 120 R3900-2 Kglobal
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Taiwan | Germany |
| Year First Available (values differ) | — | 2015 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | Contact for quote | $19,000–$84,900 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (values differ) | 12 kg | 146 kg |
| Reach (values differ) | 2,010 mm | 3,904 mm |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.05 mm | ±0.04 mm |
| Robot Weight (values differ) | 2,200 kg | 42 kg |
| IP Rating (Arm) (values differ) | IP20 | IP65 |
| IP Rating (Wrist) (values differ) | — | IP67 |
| Performance | ||
| Duty Cycle (values differ) | continuous 24 7 | — |
| Controller & Programming | ||
| Controller Model (values differ) | Standard control box or Mini control box | KR C5, KR C5 micro |
| Teach Pendant Type (values differ) | wired touch | — |
| Offline Programming (values differ) | Loyalty AI Welding System (included) | — |
| Digital Twin Support (values differ) | Yes | — |
| End-Effector | ||
| Tool Flange Standard (values differ) | ISO 9409-1 | — |
| Internal Cable Routing (values differ) | through arm and wrist | — |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $19,000–$84,900 USD |
| Warranty (values differ) | — | 2 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, Programming Languages, 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 | HIWIN Welding Robot | KR 120 R3900-2 K |
|---|---|---|
| Investment | No price | $51,950 |
| Payback period | — | 12.5 mo |
| Net savings (5 yr) | — | $198,050 |
| ROI (5 yr) | — | +381% |
HIWIN Welding 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 HIWIN Welding Robot and KR 120 R3900-2 K?
HIWIN Welding Robot is made by HIWIN Corporation, based in TW. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.
How do HIWIN Welding Robot and KR 120 R3900-2 K compare on the Robo Score?
HIWIN Welding Robot scores 57.9 on the Robo Score. KR 120 R3900-2 K scores 78.0. 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.
How does the reach of HIWIN Welding Robot compare to KR 120 R3900-2 K?
HIWIN Welding Robot has a reach of 2010 mm. KR 120 R3900-2 K has a reach of 3904 mm.
Are HIWIN Welding Robot 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 HIWIN Welding Robot 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
HIWIN Welding Robot 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 Score is calculated.