KR 120 R3900-2 K vs TR20-1920B

Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and TR20-1920B (Jiangsu Thinkmotion Intelligent Machine Technology Co., Ltd.) — specs, pricing, Robo Index, and verified deployments. Updated daily.

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Default Hospitality & F&B Warehousing & Logistics Manufacturing Healthcare & Hospitals Cleaning & Facilities Last-Mile Delivery Agriculture Home & Household

Optimized for Hospitality & F&B buyers. Priority specs lifted to the top and marked with a target.

KR 120 R3900-2 KAAA

TR20-1920BBBB

Layer 1: Identity & Trust

Manufacturer Country

KR 120 R3900-2 KGermany
TR20-1920B—

Year First Available

KR 120 R3900-2 K2015
TR20-1920B—

Verified Deployments

KR 120 R3900-2 K0 Deployments
TR20-1920B0 Deployments

Layer 2: Operational

Price

KR 120 R3900-2 K$19,000–$84,900 USD
TR20-1920B$7,299 USD

Availability Status

KR 120 R3900-2 KACTIVE
TR20-1920BACTIVE

Arm Mechanics

Payload

KR 120 R3900-2 K146 kg
TR20-1920B20 kg

Robot Weight

KR 120 R3900-2 K42 kg
TR20-1920B32 kg

Reach

KR 120 R3900-2 K3,904 mm
TR20-1920B1,920 mm

Degrees of Freedom

KR 120 R3900-2 K6
TR20-1920B6

Repeatability

KR 120 R3900-2 K±0.04 mm
TR20-1920B±0.05 mm

IP Rating (Arm)

KR 120 R3900-2 KIP65
TR20-1920BIP54/IP67(5&6 Axes Optional)

IP Rating (Wrist)

KR 120 R3900-2 KIP67
TR20-1920B—

Safety

Dual Check Safety

KR 120 R3900-2 K—
TR20-1920BYes

Controller & Programming

Controller Model

KR 120 R3900-2 KKR C5, KR C5 micro
TR20-1920BTRC5-B06

Commercial

Price (USD)

KR 120 R3900-2 K$19,000–$84,900 USD
TR20-1920B$7,299 USD

Warranty

KR 120 R3900-2 K2 yrs
TR20-1920B—

Service Network

KR 120 R3900-2 Kglobal
TR20-1920B—

	KR 120 R3900-2 Kindustrial-armKUKA Robotics AAARobo Index	TR20-1920Bindustrial-armJiangsu Thinkmotion Intelligent Machine Technology Co., Ltd. BBBRobo Index
Layer 1: Identity & Trust
Manufacturer Country (values differ)	Germany	—
Year First Available (values differ)	2015	—
Verified Deployments	0 Deployments	0 Deployments
Layer 2: Operational
Price (values differ)	$19,000–$84,900 USD	$7,299 USD
Availability Status	ACTIVE	ACTIVE
Layer 3: Category Specific
Arm Mechanics
Payload (priority for Hospitality & F&B buyers) (values differ)	146 kg	20 kg
Robot Weight (priority for Hospitality & F&B buyers) (values differ)	42 kg	32 kg
Reach (values differ)	3,904 mm	1,920 mm
Degrees of Freedom	6	6
Repeatability (values differ)	±0.04 mm	±0.05 mm
IP Rating (Arm) (values differ)	IP65	IP54/IP67(5&6 Axes Optional)
IP Rating (Wrist) (values differ)	IP67	—
Safety
Dual Check Safety (values differ)	—	Yes
Controller & Programming
Controller Model (values differ)	KR C5, KR C5 micro	TRC5-B06
Commercial
Price (USD) (values differ)	$19,000–$84,900 USD	$7,299 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, 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

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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 120 R3900-2 K	TR20-1920B
Investment	$51,950	$7,299
Payback period	12.5 mo	1.8 mo
Net savings (5 yr)	$198,050	$242,701
ROI (5 yr)	+381%	+3325%

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 TR20-1920B?

KR 120 R3900-2 K is made by KUKA Robotics, based in DE. TR20-1920B is made by Jiangsu Thinkmotion Intelligent Machine Technology Co., Ltd..

How do KR 120 R3900-2 K and TR20-1920B compare on the Robo Index?

KR 120 R3900-2 K grades AAA on the Robo Index. TR20-1920B grades BBB. 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 TR20-1920B?

KR 120 R3900-2 K has a reach of 3904 mm. TR20-1920B has a reach of 1300 mm.

Are KR 120 R3900-2 K and TR20-1920B 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 TR20-1920B?

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 120 R3900-2 K vs TR20-1920B 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.