Santa Clarita, CA -- The High Force Linear, 3 phase brushless (or AC servo) linear motors from H2W Technologies are ideal for high force, long stroke, closed loop servo, and linear motion uses such as Machine Tool, Automotive assembly, Laser and Water Jet Cutters, and Gantry applications. They can be used at speeds up to 240 in/sec [6 m/sec] and 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. 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. Features include: Very low cogging, High speed and accelerations of heavy payloads, and high forces.

The High Force Brushless Linear Motor consists of 2 main parts

1 - Long Stationary Magnet Assembly: The flat single sided magnet assembly is made up of nickel-plated steel back iron and Neodymium permanent magnets. The magnets are bonded to the steel plate. The magnets are not skewed on the steel plate, which provides a higher force per unit area than skewed magnet assemblies. Counter bored thru holes are available in the steel back iron for mounting the magnet assembly to the customer supplied base plate. The magnet assembly is available in widths from 2.40" to 9.10" [61 mm to 231 mm]. The length of the magnet assembly is a function of the stroke. The magnet assemblies are available in 4 modular lengths of 2.52" [64 mm], 5.04" [128 mm], 10.08" [256 mm], and 20.16" [512 mm].

2 - Short Moving Coil Assembly: The coil assembly is comprised of a 3-phase winding in a laminated stack and is available with 3 thermistors or thermostats. The entire assembly is then encapsulated with thermally conductive epoxy. An optional externally mounted Hall Effect board is available. T-slots along with T-nuts in the lamination stack are provided for mounting the coil assembly to the moving member of the customer supplied table assembly. The coil assembly is available in many different widths and lengths, to meet the customers force and packaging requirements. Multiple coils can be supplied with a single magnet assembly to allow for independent moving heads or they can be coupled together to produce larger forces. The standard lengths for the coil assemblies are from 7.88" [200 mm] to 28.7" [728 mm].

DC brushless motors can be ordered for any stroke and any peak force up to 2214 lbs [9839 N]. Higher forces can be achieved by adding additional coil assemblies in series or by water-cooled coil assemblies

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

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