KR 120 R3900-2 K vs RoboForm
Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and RoboForm (Metalcraft Automation Group) — specs, pricing, Robo Index, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Last-Mile Delivery buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- KR 120 R3900-2 KGermany
- RoboFormUnited States
Year First Available
- KR 120 R3900-2 K2015
- RoboForm—
Verified Deployments
- KR 120 R3900-2 K0 Deployments
- RoboForm0 Deployments
Layer 2: Operational
Price
- KR 120 R3900-2 K$19,000–$84,900 USD
- RoboFormContact for quote
Availability Status
- KR 120 R3900-2 KACTIVE
- RoboFormACTIVE
Arm Mechanics
Payload
- KR 120 R3900-2 K146 kg
- RoboForm25 kg
IP Rating (Arm)
- KR 120 R3900-2 KIP65
- RoboForm—
Reach
- KR 120 R3900-2 K3,904 mm
- RoboForm—
Degrees of Freedom
- KR 120 R3900-2 K6
- RoboForm6
Repeatability
- KR 120 R3900-2 K±0.04 mm
- RoboForm—
Robot Weight
- KR 120 R3900-2 K42 kg
- RoboForm—
IP Rating (Wrist)
- KR 120 R3900-2 KIP67
- RoboForm—
Performance
Duty Cycle
- KR 120 R3900-2 K—
- RoboFormcontinuous 24 7
Safety
Dual Check Safety
- KR 120 R3900-2 K—
- RoboFormYes
Controller & Programming
Controller Model
- KR 120 R3900-2 KKR C5, KR C5 micro
- RoboFormFanuc Robotics
Programming Languages
- KR 120 R3900-2 K—
- RoboFormKAREL, TP
Teach Pendant Type
- KR 120 R3900-2 K—
- RoboFormteach pendant
Offline Programming
- KR 120 R3900-2 K—
- RoboFormROBOGUIDE
Digital Twin Support
- KR 120 R3900-2 K—
- RoboFormNo
Connectivity
ROS-Industrial Support
- KR 120 R3900-2 K—
- RoboFormcommunity
Predictive Maintenance
- KR 120 R3900-2 K—
- RoboFormthreshold based
End-Effector
Tool Flange Standard
- KR 120 R3900-2 K—
- RoboFormISO 9409-1
Tool Changer (ISO)
- KR 120 R3900-2 K—
- RoboFormproprietary
Internal Cable Routing
- KR 120 R3900-2 K—
- RoboFormexternal only
Commercial
Price (USD)
- KR 120 R3900-2 K$19,000–$84,900 USD
- RoboFormContact for quote
Warranty
- KR 120 R3900-2 K2 yrs
- RoboForm1 yrs
Service Network
- KR 120 R3900-2 Kglobal
- RoboFormregional
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | Germany | United States |
| 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 (priority for Last-Mile Delivery buyers) (values differ) | 146 kg | 25 kg |
| IP Rating (Arm) (priority for Last-Mile Delivery buyers) (values differ) | IP65 | — |
| Reach (values differ) | 3,904 mm | — |
| Degrees of Freedom | 6 | 6 |
| Repeatability (values differ) | ±0.04 mm | — |
| Robot Weight (values differ) | 42 kg | — |
| IP Rating (Wrist) (values differ) | IP67 | — |
| Performance | ||
| Duty Cycle (values differ) | — | continuous 24 7 |
| Safety | ||
| Dual Check Safety (values differ) | — | Yes |
| Controller & Programming | ||
| Controller Model (values differ) | KR C5, KR C5 micro | Fanuc Robotics |
| Programming Languages (values differ) | — | KAREL, TP |
| Teach Pendant Type (values differ) | — | teach pendant |
| Offline Programming (values differ) | — | ROBOGUIDE |
| Digital Twin Support (values differ) | — | No |
| Connectivity | ||
| ROS-Industrial Support (values differ) | — | community |
| Predictive Maintenance (values differ) | — | threshold based |
| End-Effector | ||
| Tool Flange Standard (values differ) | — | ISO 9409-1 |
| Tool Changer (ISO) (values differ) | — | proprietary |
| Internal Cable Routing (values differ) | — | external only |
| 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, Vibration Damping, Safety Category, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Communication Protocols, IoT / Cloud Platform, Cybersecurity Certs, 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 | RoboForm |
|---|---|---|
| Investment | $51,950 | No price |
| Payback period | 12.5 mo | — |
| Net savings (5 yr) | $198,050 | — |
| ROI (5 yr) | +381% | — |
RoboForm 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 RoboForm?
KR 120 R3900-2 K is made by KUKA Robotics, based in DE. RoboForm is made by Metalcraft Automation Group, based in US.
How do KR 120 R3900-2 K and RoboForm compare on the Robo Index?
KR 120 R3900-2 K grades AAA on the Robo Index. RoboForm 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.
Are KR 120 R3900-2 K and RoboForm 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 RoboForm?
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 RoboForm 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.