Nippon Pulse April 2011 Newsletter

Linear Shaft Motor for Ultra High-Precision Markets

Nippon Pulse's Linear Shaft Motor is the first linear motor designed and built for the ultra high precision market. The design of the Linear Shaft Motor maximizes use of magnetic flux, provides stiffness 100 times greater than that of other coreless linear motors, can complete movements with sub one-micron resolutions, and minimizes heat production and the impact of generated heat.

The Linear Shaft Motor is a simple design, made of only two parts, a shaft and forcer. Because of its simple design, the Linear Shaft Motor is far more efficient than competing linear motors, using 50% less power than u-shaped motors. This is in large part because all magnetic flux created by the coils cut the magnetic shaft at 90°.

The Linear Shaft Motor is also designed to reduce the amount of heat that is dumped into the work surface, further maximizing the motor's efficiency. The Linear Shaft Motor is the only linear motor on the market that does not use an added heat sink while evaluating and documenting motor ratings.

Unlike platen linear motors, the Linear Shaft Motor does not produce Eddy currents and, because it is an ironless design, has no cogging.

More link:
Linear Shaft Motor Product Selection Page

 

Video

Linear Stepper and Motion Checker Controller in Syringe Application
http://www.nipponpulse.com/articles/view/syringe-application
 

Nippon Pulse YouTube Channel
http://www.youtube.com/user/NipponPulseAmerica

 

Product Spotlight

PR42H Hybrid Motor

Nippon Pulse’s PR42H hybrid motors are small-package stepper motors that offer high torque and high response characteristics.

The PR42H hybrid motor (NEMA 17), offers a holding torque between 250~440mN•m, a frame size of 42mm, five different rated voltages (2.8V, 3.6V, 4.0V, 6.0V, 12V), three motors lengths (34mm, 40mm, 48mm), and step angles of either 0.9° or 1.8°. The PR42H motors weigh between 220g and 440g.

Nippon Pulse hybrid motors are currently designed in a many different applications including environmental testing machines, microplate instrumentation, industrial heating systems, various lab instrumentation, and printing and plotting devices.

More Link:
PR42H Hybrid Motor Product Selection Page

Ask the Expert

Q: Should I worry about heat dissipation?

A: You should be concerned about heat dissipation in your application if your motor will operate in a confined space or you plan on running your motor beyond its rated capabilities.  If your motor is in a confined space, you should consider how the heat given off from the motor might affect nearby components and raise the ambient temperature.  If you plan on running the motor above its rated specs, you should consider ways to cool the motor proportionally to keep it operating near it’s specified maximum temperature.