The new Motoman MA3120 arc welding robot features an extra-long reach arm that reduces the need for tracks. It is the world’s longest robot arm designed for arc welding.
Available in floor-, wall- or ceiling-mounted configurations and ideal for multiple robot layouts, the arc welding robot has been improved over the previous MA3100 model robot with twice the payload, longer reach and improved through arm wrist design for arc welding.
The arc welding robot has a 6 kg payload, 3,121 mm horizontal reach and ±0.15 mm repeatability. It’s integrated through-the-arm cabling eliminates cable interference, simplifies programming and reduces cable wear. It has heavier payload capacity and an increased through hole wrist diameter making it easier to integrate pull-torches or welding sensors.
Welding utilities (gas hose and feeder signals) can be routed through the robot base and the wire feeder mounts to the upper arm to reduce the torch length. The arc welding robot is suited for use in workcells with larger workpieces, as well as for applications that require access to parts in tight spots or those with possible interference from fixtures.
The arc welding robot robot uses the Yaskawa Motoman DX200 controller that features patented multiple robot control technology to easily handle multiple tasks and control up to eight robots (72 axes), I/O devices and communication protocols. Its extensive I/O suite includes integral PLC and HMI pendant displays, high-speed Ethernet communication, 4,096 I/O addresses and a graphical ladder editor that can provide system level control.
The controller has been designed to improve process capability, reduce energy usage, and improve maintainability and safety. An enhanced Functional Safety Unit (FSU) provides control reliable zone and tool position monitoring, stand still monitoring and speed limiting.
This can reduce costs for safeguarding hardware and provides new capabilities such as collaborative tasks. It is compliant to ANSI/RIA R15.06-2012 and other relevant ISO and CSA safety standards.