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KR 120 R3900-2 K vs Heavy-industry welding robots

Side-by-side comparison of KR 120 R3900-2 K (KUKA Robotics) and Heavy-industry welding robots (POSCO DX Co., Ltd.) — specs, pricing, Robolist Trust Score, and verified deployments. Updated daily.

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

Layer 1: Identity & Trust

Manufacturer Country

  • KR 120 R3900-2 KKR 120 R3900-2 KDE
  • Heavy-industry welding robotsKR

Year First Available

  • KR 120 R3900-2 KKR 120 R3900-2 K2015
  • Heavy-industry welding robots2022

Verified Deployments

  • KR 120 R3900-2 KKR 120 R3900-2 K0 Deployments
  • Heavy-industry welding robots0 Deployments

Layer 2: Operational

Price Range (USD)

  • KR 120 R3900-2 KKR 120 R3900-2 K$19,000–$84,900
  • Heavy-industry welding robotsContact for quote

Availability Status

  • KR 120 R3900-2 KKR 120 R3900-2 KACTIVE
  • Heavy-industry welding robotsACTIVE

Arm Mechanics

Repeatability

  • KR 120 R3900-2 KKR 120 R3900-2 K±0.04 mm
  • Heavy-industry welding robots

IP Rating (Arm)

  • KR 120 R3900-2 KKR 120 R3900-2 KIP65/IP67
  • Heavy-industry welding robots

Reach

  • KR 120 R3900-2 KKR 120 R3900-2 K3,904 mm
  • Heavy-industry welding robots

Payload

  • KR 120 R3900-2 KKR 120 R3900-2 K146 kg
  • Heavy-industry welding robots

Degrees of Freedom

  • KR 120 R3900-2 KKR 120 R3900-2 K6
  • Heavy-industry welding robots

Robot Weight

  • KR 120 R3900-2 KKR 120 R3900-2 K42 kg
  • Heavy-industry welding robots

IP Rating (Wrist)

  • KR 120 R3900-2 KKR 120 R3900-2 KIP67
  • Heavy-industry welding robots

Controller & Programming

Controller Model

  • KR 120 R3900-2 KKR 120 R3900-2 KKR C5
  • Heavy-industry welding robots

Commercial

Price (USD)

  • KR 120 R3900-2 KKR 120 R3900-2 K$19,000–$84,900
  • Heavy-industry welding robotsContact for quote

Warranty

  • KR 120 R3900-2 KKR 120 R3900-2 K2 yrs
  • Heavy-industry welding robots

Service Network

  • KR 120 R3900-2 KKR 120 R3900-2 Kglobal
  • Heavy-industry welding robots

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

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Trade-offs at a glance

About this comparison

KR 120 R3900-2 K vs Heavy-industry welding robots 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 Robolist Trust Score is calculated.