The FDB4S, 7 axis, through-arm, arc-welding robot is ideal for short and medium reach tight spaces with crowded welding zones.  A through-arm design results in a slim manipulator without exterior cables or conduits to impede movement or snag in hard to reach or crowded areas.

Each FDB4S comes with a robot arc welding system based upon your specific application needs.


  • Rotation of the 7th-axis enables interference avoidance without changing the position and/or attitude of the end-of-arm tool
  • Maintains the optimal angle and attitude of the end-of-arm tool at all times, resulting in enhanced weld quality and ease of programming
  • Offers a wide working range with an independently articulated arm
  • Seamless digital connection with all OTC DAIHEN brand welding power supplies
  • Improved vibration restraining control provides smooth robot movement
  • Built-in mechanical shock sensor
  • Single source technology – all components are manufactured by OTC Daihen.
  • Highly versatile design supports most welding applications


  • Windows XP based open architecture
  • Large memory capacity and 40 Input / 40 Output control signals
  • Advanced PLC functions allow for ladder diagram editing directly through the teach pendant
  • Network capabilities – connects to Ethernet, DeviceNet, and PROFIBUS connections (may require additional hardware)


  • Icon displays assist in quick & easy teaching
  • 640×480 VGA color screen with LED backlight 65536 color display
  • 3 position enable switch provides increased safety
  • Multi-screen function allows user to view up to 4 screens simultaneously
  • On-screen help function with complete instruction manuals
  • Standard touch screen display with jog dial operation

General Stats


Reach: 1.4m
Axes: 7

Payload: 4kg