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Series 31i

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Second FANUC Series 30i/31i/32i/35i  Machinery | Asset-Trade
Term Description

Buy & Sell Used Machine Tools with FANUC Series 31i CNC Control

The FANUC Series 31i (Model A and Model B) represents the global premier class for high-production multi-path turning centers, Swiss-type automatic lathes, and high-speed machining centers. Across global manufacturing, it is celebrated for legendary MTBF reliability, ultra-fast block processing, and maximum uptime in rigorous 24/7 industrial production environments.

Key Technological Advantages of the FANUC 31i

The 31i system is tailored for high-volume series manufacturing and synchronized multi-spindle processing:

  • Nano-Interpolation: Nanometer computational resolution ensures flawless contour tracking and superior surface quality at aggressive feedrates.
  • Multi-Path Architecture: Simultaneous control of up to 4 NC channels for complex turning centers with twin turrets, sub-spindles, and B-axis milling heads.
  • AI Contour Control II (AICC II): Predictive look-ahead trajectory planning with jerk limitation to eliminate machine vibration on complex 3D parts.
  • Premier Builders: Fanuc Robodrill, Chiron, Doosan Puma / Lynx, Spinner, Citizen, Star, Tsugami, Toyoda, and Makino.

Matching Inventory: Browse our Fanuc Robodrill centers, Chiron multi-axis centers, and Doosan turning centers running FANUC 31i controls.

Future-Ready Industry 4.0 CNC Architecture

As a contemporary flagship CNC, this system meets all demands of connected smart manufacturing:

  • All-Digital High-Speed Bus: Noise-immune digital drive interfaces featuring automated motor and encoder electronic nameplate detection.
  • Real-Time Collision Avoidance & CAD Import: Direct import of 3D CAD geometries (STEP, IGES, DXF) combined with active 3D collision protection.
  • Regenerative Energy Efficiency: Regenerative power line supplies and optimized standby power management.

📄 Technical Documentation & PDF Manuals for Fanuc Series 31i

Download verified technical specifications, brochures, and programming guidelines:

Note for Service Technicians & CNC Programmers: Inquiring about wiring schematics, parameter manuals, or PLC backup archives? Contact our engineering team.

Selling Machine Tools with FANUC 31i CNC?

Asset-Trade actively acquires surplus CNC lathes and drill-tap centers with FANUC 31i controls. We provide professional market assessments, immediate payment, and turnkey machinery removal. Request a free valuation and cash purchasing offer today.

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Machine Information
Manufacturer: CHIRON
Control: CNC > FANUC > Series 31i
Year of build: 2015
Location:
Used CHIRON FZ12MT High Speed Plus vertical Machine Center with Breuning 2m Bar Loader CNC Controls Fanuc 31i  5axis continuous path control Technical Data: Travels X-Axis : 550 mm Y-Axis : 320 mm Z-Axis : 420 mm B-Axis: -45°/+… Learn more

Frequently Asked Questions about used Series 31i

What are the main advantages of the FANUC 31i in production machinery?

The FANUC 31i provides industry-leading uptime reliability (MTBF), ultra-rapid block processing, and nanometer interpolation. It is the premier choice for high-volume automotive production and multi-axis turning.

Which machine types are best suited for the FANUC Series 31i?

It is predominantly utilized on Swiss-type lathes, twin-spindle turning centers with live tooling, and fast vertical drill-tap centers (e.g. Chiron, Fanuc Robodrill).

How reliable is spare parts availability for older FANUC 31i systems?

FANUC maintains lifetime repair and parts support for all electronic boards, servo drives, and motors, ensuring seamless service throughout the machine life cycle.

Does Asset-Trade purchase used machine tools equipped with FANUC controls?

Yes. Asset-Trade buys Fanuc-controlled CNC lathes, machining centers, and complete automated production lines directly with immediate settlement.