Skip to content
Claim

Bellco Flex vs KR 120 R3900-2 K

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

Prices in
View saved

Optimize comparison for buyer

DefaultHospitality & F&BWarehousing & LogisticsManufacturingHealthcare & HospitalsCleaning & FacilitiesLast-Mile DeliveryAgricultureHome & Household

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

Bellco Flex
Bellco FlexA
KR 120 R3900-2 K
KR 120 R3900-2 KAAA

Layer 1: Identity & Trust

Manufacturer Country

  • Bellco Flex
    Bellco FlexUnited States
  • KR 120 R3900-2 K
    KR 120 R3900-2 KGermany

Year First Available

  • Bellco Flex
    Bellco Flex—
  • KR 120 R3900-2 K
    KR 120 R3900-2 K2015

Verified Deployments

  • Bellco Flex
    Bellco Flex0 Deployments
  • KR 120 R3900-2 K
    KR 120 R3900-2 K0 Deployments

Layer 2: Operational

Price

  • Bellco Flex
    Bellco FlexContact for quote
  • KR 120 R3900-2 K
    KR 120 R3900-2 K$19,000–$84,900 USD

Availability Status

  • Bellco Flex
    Bellco FlexACTIVE
  • KR 120 R3900-2 K
    KR 120 R3900-2 KACTIVE

Arm Mechanics

Payload

  • Bellco Flex
    Bellco Flex2 kg
  • KR 120 R3900-2 K
    KR 120 R3900-2 K146 kg

Robot Weight

  • Bellco Flex
    Bellco Flex—
  • KR 120 R3900-2 K
    KR 120 R3900-2 K42 kg

Reach

  • Bellco Flex
    Bellco Flex504 mm
  • KR 120 R3900-2 K
    KR 120 R3900-2 K3,904 mm

Degrees of Freedom

  • Bellco Flex
    Bellco Flex—
  • KR 120 R3900-2 K
    KR 120 R3900-2 K6

Repeatability

  • Bellco Flex
    Bellco Flex—
  • KR 120 R3900-2 K
    KR 120 R3900-2 K±0.04 mm

IP Rating (Arm)

  • Bellco Flex
    Bellco Flex—
  • KR 120 R3900-2 K
    KR 120 R3900-2 KIP65

IP Rating (Wrist)

  • Bellco Flex
    Bellco Flex—
  • KR 120 R3900-2 K
    KR 120 R3900-2 KIP67

Performance

Duty Cycle

  • Bellco Flex
    Bellco Flexcontinuous 24 7
  • KR 120 R3900-2 K
    KR 120 R3900-2 K—

Controller & Programming

Controller Model

  • Bellco Flex
    Bellco Flexdigital variable frequency intelligent controllers[1]
  • KR 120 R3900-2 K
    KR 120 R3900-2 KKR C5, KR C5 micro

Offline Programming

  • Bellco Flex
    Bellco FlexSolidWorks
  • KR 120 R3900-2 K
    KR 120 R3900-2 K—

Connectivity

ROS-Industrial Support

  • Bellco Flex
    Bellco Flexnone
  • KR 120 R3900-2 K
    KR 120 R3900-2 K—

Commercial

Price (USD)

  • Bellco Flex
    Bellco FlexContact for quote
  • KR 120 R3900-2 K
    KR 120 R3900-2 K$19,000–$84,900 USD

Warranty

  • Bellco Flex
    Bellco Flex1 yrs
  • KR 120 R3900-2 K
    KR 120 R3900-2 K2 yrs

Service Network

  • Bellco Flex
    Bellco Flexregional
  • KR 120 R3900-2 K
    KR 120 R3900-2 Kglobal

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, Teach Pendant Type, Digital Twin Support, Communication Protocols, 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.

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

MetricBellco FlexKR 120 R3900-2 K
InvestmentNo price$51,950
Payback period—12.5 mo
Net savings (5 yr)—$198,050
ROI (5 yr)—+381%

Bellco Flex 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 Bellco Flex and KR 120 R3900-2 K?

Bellco Flex is made by Bellco Feeders, based in US. KR 120 R3900-2 K is made by KUKA Robotics, based in DE.

How do Bellco Flex and KR 120 R3900-2 K compare on the Robo Index?

Bellco Flex 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.

Are Bellco Flex 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 Bellco Flex 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

Want to be notified when specs or pricing change for these robots? Drop your email.

Get updates:

Other comparisons

About this comparison

Bellco Flex 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.