KR 10 R900 WP vs KR 120 R3900-2 K

Side-by-side comparison of KR 10 R900 WP (KUKA Robotics) and KR 120 R3900-2 K (KUKA Robotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.

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Optimized for Warehousing & Logistics buyers. Priority specs lifted to the top and marked with a target.

KR 10 R900 WPA

KR 120 R3900-2 KAAA

Layer 1: Identity & Trust

Manufacturer Country

KR 10 R900 WPGermany
KR 120 R3900-2 KGermany

Year First Available

KR 10 R900 WP—
KR 120 R3900-2 K2015

Verified Deployments

KR 10 R900 WP0 Deployments
KR 120 R3900-2 K0 Deployments

Layer 2: Operational

Price

KR 10 R900 WPContact for quote
KR 120 R3900-2 K$19,000–$84,900 USD

Availability Status

KR 10 R900 WPACTIVE
KR 120 R3900-2 KACTIVE

Arm Mechanics

Payload

KR 10 R900 WP10 kg
KR 120 R3900-2 K146 kg

Reach

KR 10 R900 WP901.5 mm
KR 120 R3900-2 K3,904 mm

Degrees of Freedom

KR 10 R900 WP6
KR 120 R3900-2 K6

Repeatability

KR 10 R900 WP±0.03 mm
KR 120 R3900-2 K±0.04 mm

Robot Weight

KR 10 R900 WP53 kg
KR 120 R3900-2 K42 kg

IP Rating (Arm)

KR 10 R900 WPIP67
KR 120 R3900-2 KIP65

IP Rating (Wrist)

KR 10 R900 WP—
KR 120 R3900-2 KIP67

Controller & Programming

Controller Model

KR 10 R900 WPKR C5 micro; KR C4 compact
KR 120 R3900-2 KKR C5, KR C5 micro

Commercial

Price (USD)

KR 10 R900 WPContact for quote
KR 120 R3900-2 K$19,000–$84,900 USD

Warranty

KR 10 R900 WP—
KR 120 R3900-2 K2 yrs

Service Network

KR 10 R900 WP—
KR 120 R3900-2 Kglobal

	KR 10 R900 WPindustrial-armKUKA Robotics ARobo Index	KR 120 R3900-2 Kindustrial-armKUKA Robotics AAARobo Index
Layer 1: Identity & Trust
Manufacturer Country	Germany	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 (priority for Warehousing & Logistics buyers) (values differ)	10 kg	146 kg
Reach (values differ)	901.5 mm	3,904 mm
Degrees of Freedom	6	6
Repeatability (values differ)	±0.03 mm	±0.04 mm
Robot Weight (values differ)	53 kg	42 kg
IP Rating (Arm) (values differ)	IP67	IP65
IP Rating (Wrist) (values differ)	—	IP67
Controller & Programming
Controller Model (values differ)	KR C5 micro; KR C4 compact	KR C5, KR C5 micro
Commercial
Price (USD) (values differ)	Contact for quote	$19,000–$84,900 USD
Warranty (values differ)	—	2 yrs
Service Network (values differ)	—	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, Duty Cycle, Vibration Damping, Safety Category, Dual Check Safety, Safety I/O Pairs, E-Stop Response, Safe Zone Count, Programming Languages, Teach Pendant Type, Offline Programming, Digital Twin Support, Communication Protocols, ROS-Industrial Support, IoT / Cloud Platform, Cybersecurity Certs, Predictive Maintenance, Tool Flange Standard, Tool Changer (ISO), Internal Cable Routing, Pneumatic Lines, Electrical Lines, Spare Parts Lead Time, Expected Service Life

best in categoryweakest in categoryvalues differ

ROI Comparison

Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.

Robots (fleet)

Hours / day

Labor $/hr (USD)

Days / year

Annual labor displaced (per robot): $50,000

Metric	KR 10 R900 WP	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%

KR 10 R900 WP 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 10 R900 WP and KR 120 R3900-2 K?

KR 10 R900 WP is made by KUKA Robotics, based in DE. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.

How do KR 10 R900 WP and KR 120 R3900-2 K compare on the Robo Index?

KR 10 R900 WP grades A on the Robo Index. KR 120 R3900-2 K grades AAA. 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 10 R900 WP compare to KR 120 R3900-2 K?

KR 10 R900 WP has a reach of 901.5 mm. KR 120 R3900-2 K has a reach of 3904 mm.

Are KR 10 R900 WP 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 KR 10 R900 WP 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

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About this comparison

KR 10 R900 WP 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 Index is calculated.