« Back To Robotics Tech Papers
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:

Containers (glass and plastic Containers (glass, plastic, metal) , Food & Beverage , and Pharmaceutical

Other Other

See More

SMAC’s patented “Smart Capping” actuators

POSTED 04/01/2020  | By: Edward Neff, SMAC MCA President

In Capping applications an improved method of screwing on / or crimping caps onto bottles/vials/ test tubes is now available. This patented technology allows the manufacturer to:

  • Verify the location of the top of the container.
  • Match the cap thread with the container to prevent cross threading
  • Turn the Cap and measure the number of turns and the linear distance traveled downward.
  • “Snug” the cap then apply a precise closing torque.
  • Verify the cap’s final position and torque out.
  • Feedback in real time the results of each operation.

The device doing this is the SMAC linear rotary actuator. This device is a combination of SMAC’s patented Moving Coil Linear motor and SMAC’s patented HT “High Torque” brushless rotary motor featuring Halbach cylinder magnets and SMAC’s printed coil. (SMAC invented the Linear Rotary actuator in 1995 and has made well over 125,000 units to date). LBR40

The actuator comes in a number of useful versions including:

Thin rectangular LBR series for stacking and round CBR series. Both have IP versions available. Both have standard motors as well as motors with large center holes to accommodate current grippers used to hold caps.

Actuators can be operated bu SMAC’s compact and low cost VLC controllers (with various communication protocols built in) or other servo controllers.

Visit SMAC’s web site to see videos of Capping applications as well as other SMAC innovations such as smart screw driving and SMAC’s OEM “Fit their package size” MCA inside concept.