High force linear electric motor (ironcore, synchronous, brushless)
max. 9839 N H2W Technologies, Inc

The 3 phase brushless (or AC servo) linear motor is ideal for high force, long stroke, closed loop servo, and linear motion applications. They can be used at speeds up to 240 in / sec [6 m / sec]. They are capable of very precise position, velocity and acceleration control when coupled with a linear encoder.

The 3-phase coil assembly can be commutated trapezoidally using optional Hall Effects or sinusoidally using software commutation in conjunction with the appropriate motion controller and sinusoidal amplifier.

The short laminated moving coil assembly moves over the top of a magnet assembly. A customer supplied bearing system is required to guide the moving coil assembly and to maintain a .030" [0.75 mm] clearance between the coil and the magnet assembly.

There is a large magnetic attractive force between the coil and magnet assembly. The bearing system must be able to withstand this force in addition to whatever payload is being carried.

The power to the motor (from a customer supplied PWM 3 phase brushless servo amplifier) is supplied to the moving coil via a power cable.

The motors are available in 6 different widths and 4 different coil assembly lengths.

Advantages:

- Very low cogging
- High speed and accelerations of heavy payloads
- Capable of high forces
- Uses standard 3 phase brushless amplifier