SANTA CLARITA, Calif. – H2W Technologies Inc. in Santa Clarita, Calif., has developed the model NCC14-78-830-1SM high-force non-commutated DC linear actuator for use in cryogenic environments.
Otherwise known as a direct-drive voice coil actuator, the motor can operate without degradation or damage when placed in a cryogenic environment.
It can generate a continuous force of 92 pounds and a peak force of 294 pounds at a duty cycle of 10 percent (i.e. 1 second on, and 9 seconds off). A moving mass of 4.4 pounds allows for a maximum theoretical continuous acceleration of more than 20 Gs.
Although the motor can generate large forces, the actuator has a relatively high motor constant to generate the required force with a relatively low power input. It also can maximize the stroke output while preserving a minimal actuator length.
The NCC14-78-830-1SM has a stroke of 1.4 inches, and requires 3.8 amps of continuous current and 12.1 amps of peak current to generate the specified forces. The motion control actuator has a diameter of 7.87 inches and a retracted length of 3.5 inches.
The voice coil actuator has been designed with a thru hole in the magnet and coil assemblies. This allows for the integration of a shaft and bearing system through the center of the motor. Alternatively, the actuator can be used in many applications where a thru hole would be necessary such as focusing applications or fiber optic routing.
For more information contact H2W Technologies online at www.h2wtech.com.