The S-series motors are Aerotech’s high-performance brushless,
frameless torque motors. The motors feature neodymium iron boron
magnets for maximum torque and acceleration in a compact assembly.
High-Performance Design
The S-series motors utilize a slotless stator design and high
pole-count rotor to provide zero cogging for exceptional velocity
stability. The laminations contain no slots, eliminating torque
ripple and cogging torque that produces velocity disturbance.
The S-series motors are well-suited for direct-drive applications
such as printing and scanning where velocity ripple cannot be
tolerated.
Wide Range of Output Torque and Sizes
The S-series slotless motors cover a wide range of torque and
package sizes. Continuous torque ranges from 0.20 Nm to 29.09
N-m. Peak torque ranges from 0.82 N-m to 116.37 N-m. The open
design of the S-series motors allows for custom winding or mechanical
variations to meet any application need.
The S-series motors are designed for applications in OEM machines.
The S-50 (50-mm diameter) motor is ideal for small, tight spaces
such as spindles or small feed rolls. The S-180 (180 mm diameter)
and S-240 (240 mm diameter) can accelerate large print drums or
precision positioning tables.
Easy Machine Integration
All S-series motors are supplied as two pieces – a slotless
stator coil and permanent magnet rotor. The stator is a standard
3-phase coil assembly with Hall-effect devices. They can be driven
using a simple six-step or sinusoidal commutation algorithm. Aerotech’s
Ndrive series amplifiers are performance-matched to the S-series
motors for easy integration. The hollow rotor mounts directly
to a drive axis with no gearing required.
Custom variations can be engineered to your requirements with
minimal lead time.
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