Image of FANUC CNC 31i-Model B5 Plus on a white background. High-end CNC for high machine performance. CNC with support for simultaneous 5-axis control.

31𝑖-B5 Plus

Our CNC 31𝑖-B5 Plus is specifically engineered for enhanced 5-axis operations, delivering superior precision and complex machining capabilities. This advanced control system significantly reduces cycle times, boosting productivity and efficiency in demanding applications. Its robust design and powerful features ensure optimal performance for high-speed, multi-axis machining tasks.
Max. controlled axes total / per path
34/16
Max. spindle axes total / per path
8/4
Max. controlled paths
6

Benefits for Your Business

Pictogram for Advanced machining (CNC) in black. SVG format.

5 Simultaneous Control Axes

This machine offers up to five axes of simultaneous control, enabling high-speed, precise, and high-quality machining of complex shapes, ideal for advanced 5-axis machining centers.
Pictogram for Precision positioning (ROBOMACHINES) in black. SVG format.

Improved Accurarcy

Experience next-level performance with our upgraded CNC system, now equipped with simultaneous 5-axis machining. This offers you the ultimate in manufacturing prowess and efficiency.
Pictogram for 6-axis retrofit kits (ROBOMACHINES) in black. SVG format.

Precision Mastery

Experience unparalleled control and precision with our state-of-the-art system, boasting a total of 34 control axes. With an impressive array of 26 feed axes complemented by eight robust spindles.
Icon for Path. SVG

Reliable Path Control

Experience unparalleled precision with our state-of-the-art CNC controller – masterfully orchestrating up to six independent paths with effortless synchronicity for complex machining tasks.
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Service First

To help you get the best out of your products, we provide predictive, preventive, and reactive maintenance solutions, offering thousands of parts on-demand throughout your product's lifecycle.

Technical Specifications

Axis control
Max. controlled axes total / per path
34/16
Max. feed axes total / per path
26/12
Max. spindle axes total / per path
8/4
Max. simultaneously controlled axes per path
5
Max. controlled paths
6
Type of installation
LCD version
Áno
Stand-alone version
Áno
Operating Units
LCD panel
Áno
LCD panel for iHMI
Áno
PC front-end
Áno
PC front-end iHMI
Áno
Touch systems
Áno
Handheld control unit
Áno
Machine operators panel
Áno
PMC functions
Max. number of I/O
4096
Max. number of I/O-Link
2
Max. number of PMC channels
5
Maximum steps
300000
Block function
Áno
CNC functions
3D Interference check
Áno
Dual Check Safety
Áno
Smart Machine Control
Áno
Program Restart
Áno
Quick Program Restart
Áno
Nano Interpolation
Áno
Nano Smoothing
Áno
Fine Surface Technology
Áno
AI Advanced Preview
Áno
AI Contour Control
Áno
Macro Executor
Áno
C-Executor
Áno
FANUC Picture
Áno
FOCAS
Áno
5-axis function
Tilted Working Plane
Áno
Tool Center Point Control
Áno
Error compensation
Error Compensation
Áno
Volumetric Error Compensation
Áno
Tool functions
Tool Functions
Áno
Tool Management System
Áno
3-D tool compensation
Áno
Technologies
Milling
Áno
Turning
Áno
Grinding
Áno
Gear-cutting
Áno
5 - axis
Áno
3+2 axis
Áno
Wood
Áno
Marble
Áno
Drilling
Áno

Download for Additional Information

Access essential technical specifications and valuable information about our products through our downloadable documents, aiding your decision-making process and maximising the utilisation of your FANUC products. 

For Customisation

Illustration of FOCAS library

FOCAS Library

Boost your CNC operations! Easily connect to your CNC machine via Ethernet or fibre optic. Customise functions, modify Macro Programmes, and enjoy intuitive access to advanced CNC tools.
Image of CNC screen. FANUC Picture

Screen Customisation - FANUC PICTURE

Seamlessly personalise operator interface and HMI screens for complex tasks. Unrivalled customisation, enhanced interfaces, smooth operation, and custom-made control panels ensure top user experience.
Image of CNC screen. Startup tool

Setup Tools - FANUC Ladder III, CNC Application Development Kit, CNC Setting Tool, CNC Startup Tool

Improve the efficiency of your industrial operations with our tools. Simplify programming, customise systems, and achieve efficient and accurate setups for enhanced productivity.
FANUC SERVO GUIDE is a Windows® application for quick and easy optimisation of servo and spindle axes. This software provides the integrated environment to test programs, set parameters and data measurement, needed for servo and spindle tuning. Direct connection between PC and CNC is possible through Ethernet.

SERVO GUIDE

Boost automation with cutting-edge servo technology. Experience precision, seamless integration, and optimal performance. Durable, energy-efficient, with tailored support for optimal operations.
Image of CNC screen. Servo Sizer

Servo Sizer

Select motors and amplifiers with ease using FANUC Servo Sizer. Enter your specifications and operating conditions for optimal motor and amplifier recommendations. Free and user-friendly.
This image shows the AI Thermal Displacement Compensation. 
Easy to set up, this function significantly reduces machine warm-up times and ensures accurate machining under thermal growth conditions that can affect dimensional accuracy.
Picture from the ROBODRILL  brochure.

AI Thermal Displacement Compensation

Experience unmatched precision and efficiency in industrial machinery. Our solution minimises thermal displacement, ensuring consistent accuracy, reduced downtime, and higher productivity.

Discover the Product Series

Success Story HAGE Sondermaschinenbau. FANUC Austria.

30𝑖 / 31𝑖 /32𝑖-MODEL B Plus Series

Designed to meet the demands of modern manufacturing, these powerhouses offer unparalleled control technology, customisable functionality and seamless connectivity. Explore our 30𝑖 / 31𝑖 /32𝑖-MODEL B Plus Series now!

Get Inspired

Get Inspiration from Other's Success

NHOM-98 is a mould manufacturer for the glass industry. For the production of parts with high complexity and shapes, they have installed several machines with FANUC CNC controls and five FANUC ROBODRILL machining centers.
INHOM-98 Ltd.

INHOM-98 Relies on High Quality of FANUC Equipment and Service

When it comes to automating a factory, the reliability of the systems is just as important as their efficiency. An excellent maintenance and repair service can make all the difference.