Servo Motors

FANUC’s BETA i-B Series servo motors are highly reliable motors ideal for feed axes of entry-level machines, positioning axes and peripheral units. This series’ pulsecoder and special magnetic pole shape, which minimizes cogging torque, and the latest SERVO HRV+ Control achieve extremely smooth motor rotation, enabling machining of very high precision and quality.

Our BETA i-B Series servo motors’ unique seal structure offers high-quality waterproofness. This feature helps businesses keep downtime to a minimum.

BETA i-B Series servo motors feature:

• Medium inertia with quick acceleration
• Available in two versions: F (ferrite magnet) and S (strong motor with neodymium magnets)
• 200V or 400V input voltage
• Torque output 0.2-40 Nm
• Smooth rotation
• Up to 6,000 rpm
• High resolution βi Series encoder (1 million pulses per revolution standard, 4 million optional)
• IP65 protection standard, with IP67 optional

The FANUC ALPHA i-B Series servo motors offer exceptional performance, enabling high-speed, high-precision machining on machines of all sizes. This series’ excellent torque characteristics provide quick acceleration to high-speed range, helping decrease cycle time. ALPHA i-B Series servo motors’ pulsecoder, unique magnetic pole shape and SERVO HRV+ Control achieve tremendously smooth motor rotation for high-precision and high-quality machining.

As with our BETA i-B Series, our ALPHA i-B Series servo motors’ seal structure offers exceptional waterproofness, helping minimize downtime.

ALPHA i-B Series servo motors feature:

• Supremely smooth feed
• Two versions: F (ferrite magnet) and S (strong motor with neodymium magnets)
• 200V or 400V input voltage
• Torque output from 1–3,000 Nm
• Speeds up to 6,000 rpm
• High-resolution αi Series encoder (4 million pulses per revolution standard, 32 million optional)
• IP65 protection standard, with IP67 optional

FANUC’s Direct Drive DiS-B Series synchronous, built-in torque servo motors are ideal for rotary tables and rotary axes for 5-axis machines. Rare-earth magnets help deliver high torque, and the motor ampilifer’s circuit design mitigates torque ripple. Our DiS-B Series servo motors can either be air-cooled or, for increased performance, oil- or water-cooled.

DiS-B Series servo motors feature:

• Neodymium magnets to provide high torque
• Available with 200V or 400V input voltage
• Maximum torque from 35–10,000 Nm
• Continuous torque from 15–4,500 Nm
• High-speed models up to 3,000 rpm
• Optimum magnetic circuit design provides low ripple
• Maintenance-free direct drive

FANUC’s LiS-B Series linear motors have set new standards for acceleration, precision and speed, delivering high gain and rigidity with excellent path accuracy. Unlike conventional drives, these motors work without any force transmission mechanisms, making machine design and maintenance easier (no ball screws, no backlash). The linear design enables rigid long-stroke axes, increased thrust force and multi-head configurations by arranging multiple coil sliders on a single magnet track.

LiS-B Series servo motors feature:

• High rigidity allows higher speeds (4m/s) and higher acceleration (30G)
• Any number of coil sliders can be installed on a single magnet plate track for multi-head configuration
• Stroke length determined by number of magnet plates used and limited only by length of linear encoder selected; unlike conventional ball screw systems, adding length does not increase load inertia or reduce rigidity
• Linear motors can be placed in series or parallel arrangements for maximum design flexibility; they can even be arranged opposing each other to counteract their magnetic attraction force
• Water cooling allows for large continuous force from 100–7,750 N
• High precision by applying linear scales with high resolution
• Maintenance-free mechanism