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ABB IRB 120 FlexMove vs SigmaTau

Side-by-side comparison of ABB IRB 120 FlexMove (ABB) and SigmaTau (Cognibotics) — specs, pricing, Robo Index, and verified deployments. Updated daily.

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Optimized for Last-Mile Delivery buyers. Priority specs lifted to the top and marked with a target.

Layer 1: Identity & Trust

Manufacturer Country

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveSwitzerland
  • SigmaTau
    SigmaTauSweden

Year First Available

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove2018
  • SigmaTau
    SigmaTau

Verified Deployments

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove0 Deployments
  • SigmaTau
    SigmaTau0 Deployments

Layer 2: Operational

Price

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove$65,000 USD
  • SigmaTau
    SigmaTauContact for quote

Availability Status

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveACTIVE
  • SigmaTau
    SigmaTauACTIVE

Arm Mechanics

Payload

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove12 kg
  • SigmaTau
    SigmaTau

IP Rating (Arm)

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveIP54
  • SigmaTau
    SigmaTau

Reach

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove900 mm
  • SigmaTau
    SigmaTau

Degrees of Freedom

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove6
  • SigmaTau
    SigmaTau

Repeatability

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove±0.03 mm
  • SigmaTau
    SigmaTau

Path Accuracy

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove±0.1 mm
  • SigmaTau
    SigmaTau

Robot Weight

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove35 kg
  • SigmaTau
    SigmaTau

Performance

MTBF

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove50,000 hrs
  • SigmaTau
    SigmaTau

Duty Cycle

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove24 7 continuous
  • SigmaTau
    SigmaTau

Safety

Dual Check Safety

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveYes
  • SigmaTau
    SigmaTau

Safety I/O Pairs

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove2
  • SigmaTau
    SigmaTau

Controller & Programming

Controller Model

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveOmniCore™
  • SigmaTau
    SigmaTau

Programming Languages

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveRAPID
  • SigmaTau
    SigmaTau

Teach Pendant Type

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMovewired touch
  • SigmaTau
    SigmaTau

Offline Programming

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveRobotStudio
  • SigmaTau
    SigmaTau

Digital Twin Support

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveYes
  • SigmaTau
    SigmaTau

Connectivity

IoT / Cloud Platform

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveABB Ability
  • SigmaTau
    SigmaTau

Predictive Maintenance

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMovethreshold based
  • SigmaTau
    SigmaTau

End-Effector

Tool Flange Standard

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveiso 9283
  • SigmaTau
    SigmaTau

Internal Cable Routing

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMovethrough arm and wrist
  • SigmaTau
    SigmaTau

Pneumatic Lines

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove1
  • SigmaTau
    SigmaTau

Commercial

Price (USD)

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove$65,000 USD
  • SigmaTau
    SigmaTauContact for quote

Warranty

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMove1 yrs
  • SigmaTau
    SigmaTau

Service Network

  • ABB IRB 120 FlexMove
    ABB IRB 120 FlexMoveglobal
  • SigmaTau
    SigmaTau

Insufficient data for full comparison

The following fields had no data for any of the selected robots: Battery / Shift Runtime, Max TCP Speed, IP Rating (Wrist), Cycle Time (25/305/25), Vibration Damping, Safety Category, E-Stop Response, Safe Zone Count, Communication Protocols, ROS-Industrial Support, Cybersecurity Certs, Tool Changer (ISO), 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

MetricABB IRB 120 FlexMoveSigmaTau
Investment$65,000No price
Payback period15.6 mo
Net savings (5 yr)$185,000
ROI (5 yr)+285%

SigmaTau 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 ABB IRB 120 FlexMove and SigmaTau?

ABB IRB 120 FlexMove is made by ABB, based in CH. SigmaTau is made by Cognibotics, based in SE.

How do ABB IRB 120 FlexMove and SigmaTau compare on the Robo Index?

ABB IRB 120 FlexMove grades AA on the Robo Index. SigmaTau grades B. 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 ABB IRB 120 FlexMove and SigmaTau 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 ABB IRB 120 FlexMove and SigmaTau?

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.

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About this comparison

ABB IRB 120 FlexMove vs SigmaTau 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.