KR 120 R3900-2 K vs LPH-040
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and LPH-040 (DENSO) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Warehousing & Logistics buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- LPH-040Japan
Year First Available
- KR 120 R3900-2 K2015
- LPH-0402019
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- LPH-0400 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- LPH-040$5,392 USD
Availability Status
- KR 120 R3900-2 KACTIVE
- LPH-040ACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- LPH-0403 kg
Reach
- KR 120 R3900-2 K3,904 mm
- LPH-040400 mm
Degrees of Freedom
- KR 120 R3900-2 K6
- LPH-0404
Repeatability
- KR 120 R3900-2 K±0.04 mm
- LPH-040±0.02 mm
Max TCP Speed
- KR 120 R3900-2 K—
- LPH-0404.7 m/s
Robot Weight
- KR 120 R3900-2 K42 kg
- LPH-04016 kg
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- LPH-040—
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- LPH-040—
Performance
Duty Cycle
- KR 120 R3900-2 K—
- LPH-040multi shift
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- LPH-040RC8
Teach Pendant Type
- KR 120 R3900-2 K—
- LPH-040no pendant (browser UI)
Offline Programming
- KR 120 R3900-2 K—
- LPH-040WINCAPS III Offline Software
End-Effector
Pneumatic Lines
- KR 120 R3900-2 K—
- LPH-0403
Electrical Lines
- KR 120 R3900-2 K—
- LPH-04015
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- LPH-040$5,392 USD
Warranty
- KR 120 R3900-2 K2 yrs
- LPH-040—
Service Network
- KR 120 R3900-2 Kglobal
- LPH-040global
Expected Service Life
- KR 120 R3900-2 K—
- LPH-0405 yrs
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Germany | Japan |
| Year First Available (values differ) | 2015 | 2019 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $19,000–$84,900 USD | $5,392 USD |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Arm Mechanics | ||
| Payload (priority for Warehousing & Logistics buyers) (values differ) | 146 kg | 3 kg |
| Reach (values differ) | 3,904 mm | 400 mm |
| Degrees of Freedom (values differ) | 6 | 4 |
| Repeatability (values differ) | ±0.04 mm | ±0.02 mm |
| Max TCP Speed (values differ) | — | 4.7 m/s |
| Robot Weight (values differ) | 42 kg | 16 kg |
| IP Rating (Arm) (values differ) | IP65 | — |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Performance | ||
| Duty Cycle (values differ) | — | multi shift |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | RC8 |
| Teach Pendant Type (values differ) | — | no pendant (browser UI) |
| Offline Programming (values differ) | — | WINCAPS III Offline Software |
| End-Effector | ||
| Pneumatic Lines (values differ) | — | 3 |
| Electrical Lines (values differ) | — | 15 |
| Commercial | ||
| Price (USD) (values differ) | $19,000–$84,900 USD | $5,392 USD |
| Warranty (values differ) | 2 yrs | — |
| Service Network | global | global |
| Expected Service Life (values differ) | — | 5 yrs |
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, Vibration Damping, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Programming Languages, Digital Twin Support, Communication Protocols, ROS-Industrial Support, IoT / Cloud Platform, Cybersecurity Certs, Predictive Maintenance, Tool Flange Standard, Tool Changer (ISO), Internal Cable Routing, Spare Parts Lead Time
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 | LPH-040 |
|---|---|---|
| Investment | $51,950 | $5,392 |
| Payback period | 12.5 mo | 1.3 mo |
| Net savings (5 yr) | $198,050 | $244,608 |
| ROI (5 yr) | +381% | +4537% |
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 LPH-040?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. LPH-040 is made by DENSO, based in JP.
When were KR 120 R3900-2 K and LPH-040 launched?
KR 120 R3900-2 K launched in 2015. LPH-040 launched in 2019.
How do KR 120 R3900-2 K and LPH-040 compare on the Robo Index?
KR 120 R3900-2 K grades AAA on the Robo Index. LPH-040 grades A. 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 KR 120 R3900-2 K compare to LPH-040?
KR 120 R3900-2 K has a reach of 3904 mm. LPH-040 has a reach of 400 mm.
Are KR 120 R3900-2 K and LPH-040 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 LPH-040?
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 LPH-040 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.