« Back To News
SMAC Moving Coil Actuators Logo

Member Since 2014


SMAC makes Moving Coil electric actuators. These products are the fastest actuators in the world. Cycle life is well beyond 100M. They have the ability to softly land on surfaces and then apply a programmed specific force. SMAC’s new LDL series of linear actuators has a list price of around $300 making them the first real electric actuator alternative to air cylinders. This price is based on SMAC’s contstent cost down program featuring pointed coils, in-house manufactured encoders, and laser cut parts. SMAC invented the Linear Rotary actuator 25 years ago. These are widely used in Electronic Pick and Place, Quality Thread Check, Bottle Capping, and beginning to find wide use in Automatic Screw Driving and SMART Drilling and Tapping. Interestingly a number of companies are making an effort to copy SMAC - but are not able to match technology or price. SMAC also has stepped up its efforts in inspection by launching the MLA series - a direct challenge to old tech LVDT devices.

Content Filed Under:


Assembly Assembly

SMAC Demonstrates an Average 50%+ Noise Reduction vs Pneumatics

POSTED 01/23/2020

Carlsbad, CA – In an internal study, SMAC Moving Coil Actuators show evidence of a 50% reduction in decibels generated by moving coil actuators versus traditional pneumatic actuators.

People who work in a traditional production environment, often accept noise pollution as a necessary occupational hazard. However, evolving moving coil technology is making strides in noise control/reduction. Pneumatics range from 100-120 dBA. SMAC's team averaged this to 110 dBA for the study. (As a point of reference, shouting directly into someone’s ear is rated at 110 dBA.) By comparison, SMAC Moving Coil Actuators came in at 40-60 dBA, depending on conditions, averaging at 50 dBA, literally less than half of the noise produced by pneumatics. This level of noise is comparable to a quiet library or office environment.

While there are methods to muffle pneumatic actuators, few will reduce noise generated to the 40-60 dBA range measured in SMAC Moving Coil Actuators.

The low noise generated by SMAC actuators is attributed to its airless operation. There is no compressed air generation required with SMAC. At the heart of all SMAC actuators is the moving coil, also described as a voice coil actuator. The essential principle is the same as a permanent magnet loudspeaker. The voice coil sits in a strong magnetic field, and by passing a current through the coil a force is generated in either direction.