Hours of Operation
Monday - Friday:
8:00 AM - 4:30 PM
Customer Service
Give Us a Call:
(616) 538-5966

Customer Service

Give Us a Call:
(616) 538-5966

Sonic Welding Company Wyoming Mi

Gem Plastics Inc. is a plastics injection molding company in Wyoming, MI. As such, we offer a range of services to help our customers meet their production needs. Whether you’re interested in custom insert injection molding, assembly, or tool sampling, you can count on our experienced machine operators to give you the results you need every time.

We are a family-owned and close-knit company, which shows in the quality of the products that come out of our factory. Even though the business has evolved so much, we continue to maintain a close relationship with our customers based on faith and trust.

Gem Plastics is proud to offer the following services.

Injection Molding & Custom Insert Injection Molding 

We have over 500 molds and 18 machines to put them in. These plastics injection molding machines have very few limitations so we can complete just about anything a customer may need in plastic.

Tool Sampling

Our very experienced machine operators can complete samples at any time.


We have employees that are designated to fulfill the needs of customers that need simple assembly work done.

Preventive Maintenance

We confirm with our customers that their molds will be well-kept in our factory. You can trust our team to provide excellent preventive maintenance.

Sonic Welding

Ultrasonic welding uses less energy than traditional welding methods. Call Gem Plastics to discover the benefits that sonic welding can bring to your business.

Hot Plate Welding

This technique creates strong, air-tight welds in thermoplastic parts. Through hot plate welding, our machine operators have the ability to quickly heat and join thermoplastic parts.

Contact Gem Plastics

Gem Plastics is proud to be a plastics injection molding company in Wyoming, MI. To discover what we can do for you and learn more about our capabilities, call (616) 538-5966. You may also fill out our online contact form and someone from our team will reach out to you soon.

Exceptional Quality Plastics Injection Molding