FANUC M900iB /400L

Robot details

The FANUC M-900iB/400L is a long-reach heavy payload industrial robot designed for applications requiring exceptional lifting capacity, high rigidity, and a very large working envelope. As one of the most powerful long-arm robots in the FANUC M-900 series, this 6-axis robot is engineered for industries that demand reliable handling of very large and heavy components. 

With a payload capacity of 400 kg and an extended reach of 3704 mm, the M-900iB/400L is ideal for large-scale material handling, automotive press transfer, heavy palletizing, spot welding, and aerospace manufacturing operations. Its long arm configuration allows the robot to cover wide production areas while maintaining excellent repeatability and positioning precision. 

The robot operates with the advanced FANUC R-30iB Plus controller, a high-performance robotic control system designed to increase productivity and simplify automation management. The controller offers advanced motion control, intelligent diagnostics, enhanced processing power, expanded memory, and compatibility with FANUC software technologies including iRVision, ROBOGUIDE, Dual Check Safety (DCS), and intelligent motion optimization systems. 

Thanks to its highly rigid structure and optimized mechanical design, the M-900iB/400L can handle extremely heavy parts with stable movement and reduced vibration. This makes it particularly suitable for transferring automotive body frames, metal structures, glass panels, construction components, and oversized industrial products. 

The robot is also designed to operate in harsh industrial environments. The wrist and J3 arm feature IP67 protection as standard, while optional Severe Dust and Liquid Protection (SDLP) packages provide additional protection for applications involving dust, moisture, oil, or contaminants. 

The FANUC M-900iB/400L is widely used in automotive manufacturing, heavy fabrication, foundries, logistics automation, aerospace production, and large assembly systems where both long reach and ultra-heavy payload handling are required.

Robot applications


General Specifications

Specification Value
Robot Type 6-Axis Articulated Robot
Payload Capacity 400 kg
Reach 3704 mm
Repeatability ±0.1 mm
Mounting Options Floor
Controller FANUC R-30iB Plus
Protection Rating IP67 Wrist & J3 Arm
Robot Mass Approx. 3150 kg
Drive System AC Servo Motors

Axis Motion Range and Speed

Axis Motion Range Max Speed
J1 ±360° 80°/s
J2 ±154° 80°/s
J3 ±160° 80°/s
J4 ±720° 100°/s
J5 ±244° 100°/s
J6 ±720° 160°/s

Main Applications

Heavy Material Handling

Ideal for moving large industrial parts, automotive body components, steel structures, and oversized assemblies. 

Press Transfer

Perfect for automotive press lines where heavy stamped parts must be transferred across wide workspaces. 

Heavy Duty Spot Welding

Its rigid structure and large work envelope make it ideal for heavy welding operations. 

Palletizing

Suitable for complete-layer palletizing and high-capacity end-of-line automation systems. 

Aerospace and Construction Applications

Used for handling large aerospace structures, construction frames, and heavy fabricated assemblies. 

Machine Loading and Part Transfer

Efficient for automatic loading, unloading, and transfer of very large workpieces.

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