Join Our Team


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“Working at SMI has been a good experience for me. Great teamwork and a good friendly environment that nurtures career advancement.”

James Gordon

Quality Control Inspector, SMI Molding Inc.

“A typical day at work was operating machines that molded eye wear for skiing.! My position was only temporary. However it was a fun place to work. Management was awesome!”

Henry Styles

Machine Operator, SMI Molding Inc.

What We Do

SMI is one of the premiere plastic injection molders in the Western United States. We have been doing business in Clearfield, Utah since 1981 when we started out with 4 machines and a few dedicated employees. Today SMI has expanded to a 60,000 sq. ft. facility with 30+ machines ranging from 55 to 610 tons.

Plastic Injection Molding

SMI is best known for our achievements in top quality molding of difficult materials. Our veteran team's knowledge and experience helps us stay at the forefront.


As a Full Service Custom Injection Molder, we are a complete in-house tool fabrication and maintenance facility capable of rapid response repairs.

Plastic Engineering

Staffed with experienced engineers and support staff, SMI Molding is able to take on all types of Plastic Engineering jobs, regardless of complexity.


Insert-Molding allows certain structural or aesthetic aspects of a plastic part to be inserted into the mold and the plastic will mold around the inserted part.

Gas-Assist Molding

Gas assist molding for thick walled parts greatly reduces sinks and molded-in stress. With lower molding pressures, it is also more economical for large parts.

Secondary Operations

As a Single Source Supplier, SMI is able to provide added value operations like Hot Stamping of molded products, Turn-Key Assembly, as well as Packaging.

Management Objectives

SMI is committed to the continual improvement of quality systems in order to impact customer satisfaction by leveraging decades of manufacturing and engineering experience, thereby creating repeatable products that perform to specifications.

  • Customer focus
  • New technologies, techniques and processes
  • IQMS integrated software systems
  • Safe work environment
  • Work force engagement
  • On time delivery
  • Project management
  • Profitability to provide stability to customers

Take a look at what we work with below

Additional Capabilities

  • Portable class clean chambers with hepafilter filtration systems
  • Gain Technologies Gas Assist
  • Hot stamping machines ranging from 1 to 5 tons
  • 3 axis parts picking robots


Machine Shop / Tool Room

  • Sodick Sinker EDM/CNC
  • Haas Machining Center
  • Tree Journeyman H-25-3 axis CNC w/digitizing, AutoDesk
  • Lagun FTU-4E mill
  • Tree 2UVR vertical mill
  • Bridgeport 1:1 True Trace milling machine
  • Handsvdt EDM
  • Kuhlmann pantograph
  • Harig surface grinder
  • Cincinnati #2 cutter grinder
  • Lathes from 10” to 24” swing
  • Handsvelt 20 amp EDM
  • Miller tig welder
  • Miller mig welder

Quality Assurance Department

  • Falcon 3-Axis Video Measuring Microscope
  • Optical Comparator
  • SPC software for CPK data collection
  • ISO 9001:2008

SMI Molding Inc. is a modern facility with the following major equipment:

Let's Start Something New

Get In Touch


Rosti PCI - Clearfield, UT
(SMI Molding, Inc.)

Freeport Center, Bldg. Z-13
Clearfield, UT 84016


(801) 776-4233


(801) 825-0982