SMC- Actuators

Repumag for the motor / VCM market delivers the ability to push the limits on miniaturization, efficiency and performance.  Many of the designs we have created enable our customers to achieve extreme performance in devices such as a wire bonding machines and missile guidance systems.  Our customers challenge us to design SMC and actuators with features such as:

1.  High force to mass ratio
2.  High speed moving coil designs
3.  Harsh environment withstand capability
We have extensive experience in the design and production of:

•   rotory SMC,
•   actuators, and
•   voice coil SMC.

End uses include semiconductor capital equipment, missile guidance gyros and fin SMC, industrial shaker assemblies and factory automation equipment.

1, Help us designs

We do not make Actuators; we make the magnetic assemblies that enable these devices to operate effectively.  In order to design a magnet assembly, we would need to know the following:

1.  What market is the device to be used in, such as aerospace, semiconductor or medical?

2.  What are the performance characteristics such as, space and weight constraints, packaging and electrical characteristics?

Our design engineering group along with process and production engineers will quickly move from computer model to prototype right on to production.

2, Materials

High performance actuator and motor design requires the use of materials that push the limits of material science.  Magnet material selection is critical and we can assist in the selection of the best material.  Tradeoffs in the selection include temperature, residual induction, coercivity and environment.

•   Alnico

•   Neodymium Iron Boron

•   Samarium Cobalt

 3, RFQ

1.  Can I use Nd-Fe-B magnets at high temperature?

2.  What is the best material for very harsh corrosive environments?

3.  Can Repumag build Mems devices?

1.  Our typical answer is yes, but we don’t like to see this material used beyond about 120 °C.

2.  Sm-Co is the first choice for high performance in harsh environments, it also is the material of choice for temperatures up to around 300 °C.  Alnico is also a good choice for this environment although the performance is typically lower than Sm-Co.

3.  Typically, we do not get into the fabrication of memes machines.