(231) 267-5221 5780 Moore Road Williamsburg, MI 49690
Certified
IATF:16949:2016
Quality
0 PPM
Delivery
100% Ontime

Precision Injection Molding Utilizing Scientific Molding principles, GTP produces tight-tolerance functional components Learn More blank 4x GM Supplier of the Year Plus 8x Quality Excellence Award winner blank Zero Parts Per Billion Learn More

Injection Molding

23 Horizontal Presses

Manufacturing

3 Molding Facilities

Automation

In-House Automation & Tooling

Market Sectors

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Supplier of functional engineered plastic components for powertrain, critical use/safety systems, fluid and electrical.

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Tier 1 supplier of actuator and sorting assemblies for the material and package handling industry.

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Supporting OEMs in the HVAC, fluid handling, marine and military supply Industries.

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10
Sep

GTP adds it’s 23rd Injection Molding Machine

Grand Traverse Plastics recently took delivery of a new Engel Duo Injection Molding Machine. The second new Engel press delivered in 60 days, this 900 ton machine will be outfitted with a new 5-Axis Yushin robot and located in “Plant 2” within the GTP Williamsburg, MI campus. “We continue to see solid growth even in...
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17
Aug

GTP Featured in Plastics Business Magazine

Grand Traverse Plastics to Expand with Lights-Out Manufacturing Facility Grand Traverse Plastics (GTP), Williamsburg, Michigan, is expanding to include tight tolerance precision molding. GTP has three facilities on its Williamsburg campus. The existing 33,000 sq. ft. mold manufacturing and in-house automation facility will be converted to allocate 20,000 sq. ft. to a new lights-out injection...
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28
Jul

Christmas in July

We just unwrapped our new Engel Victory 340 Ton injection molding machine! This new tie-bar-less press replaces an older aging machine and helps support our new business growth.
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18
Jun

GTP Receives 8th Supplier Quality Excellence Award from General Motors

Grand Traverse Plastics is proud to have received our 8th Quality Excellence Award from General Motors. The award recognizes suppliers for meeting 13 challenging criteria including efficient manufacturing practices, positive customer satisfaction, dependable delivery times and most importantly zero defects. GTP is truly honored to have been recognized as one of GM’s quality suppliers. It...
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Career & Jobs

Working at GTP means being able to commit resolutely to one thing and growing from it. As an individual and as a whole – in a family enterprise that creates fascinating products around the world. Once you experience it, you’ll want to stay.

Lights-Out Manufacturing

Coming Soon

111Days
7Hours
6Mins
51Secs