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Latest Posts
  • Reinforcing Ribs for Rotomolded Parts
  • Thermoforming for Ventilators
  • Medical Device Manufacturing and Rotational Molding
  • What Is Rotational Molding?
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Rotational Molding That Adds Value
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Saving Lives with Rotational Molding That Adds Value

October 30, 2018 2489 views
First responders need to be ready for anything. That’s why they need the right equipment. For innovative companies who supply…
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Heavy Gauge Thermoforming
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Heavy Gauge Thermoforming for Plastic Products

September 25, 2018 1606 views
Heavy gauge thermoforming from Gregstrom Corporation turns large, thick plastic sheets into high-quality plastic products. These strong plastic parts can withstand…
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Rotational Molding and Plastic Parts Finishing
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Rotational Molding and Plastic Parts Finishing

August 24, 2018 2141 views
Rotational molding and plastic parts finishing combine quality manufacturing with value-added solutions.  Rotational molding is a manufacturing process that produces…
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Rotational Molding Design
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Rotational Molding Design: Four Special Requirements

July 30, 2018 1740 views
Rotational molding produces strong, hollow plastic parts in a variety of shapes and sizes. For best results, product designers and…
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Rotomolding
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Rotomolding is Replacing Metal Parts with Plastics

June 25, 2018 1920 views
Rotational molding (rotomolding) is replacing metal parts with plastic ones in many industrial, commercial, and consumer applications. As a plastics manufacturing…
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Heavy Gauge Thermoforming
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Heavy Gauge Thermoforming Design Considerations

May 29, 2018 1749 views
Heavy gauge thermoforming turns thick plastic sheets into extremely durable parts. Applications include enclosures, housings, and panels for vehicles, instruments,…
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Instrument Housings and Assemblies
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Plastic Thermoforming for Instrument Housings and Assemblies

April 26, 2018 1771 views
Instrument housings and assemblies are cases or enclosures that protect an instrument (such as a medical device) from environmental conditions.…
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plastic contract manufacturing
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Plastic Contract Manufacturing for Medical Devices

March 28, 2018 2957 views
Plastic contract manufacturing for medical devices isn’t limited to injection molding. For parts production, rotational molding and thermoforming offer numerous…
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3D CAD
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3D CAD for Designing Rotomolded Parts

February 28, 2018 2216 views
3D CAD has revolutionized how rotomolded parts are designed and made. 2D CAD was an improvement over blueprints and drawings,…
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Rotomolded Parts
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Rotomolded Parts: Decoration and Finishing

January 22, 2018 2662 views
Rotomolded parts for industrial applications are often ready-to-use after they’re removed from the mold. By contrast, plastics manufacturing processes such…
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About Us

Gregstrom Corporation is a custom rotational molder and heavy gauge thermoformer that adds value to your projects.

For nearly 70 years, Gregstrom Corporation has been building lasting relationships with partners in industries like yours.

As a third-generation, family-owned business, our American-owned company stakes its reputation on a commitment to quality, customer service, and continuous improvement.

Featured Projects

Heineken Draught Keg Cooler

Heineken Draught Keg Cooler

August 10th, 2015

Refrigerated POP displays like this Heineken draught keg cooler need to be functional and attractive[...]
Plastic Chemical Feeder | Rotational Molding Services

Plastic Chemical Feeder | Rotational Molding Services

August 10th, 2015

Chemical feeders prepare and automatically dispense the chlorine that’s used to disinfect municipal [...]
Medical Laser Assembly | Pressure Forming Services

Medical Laser Assembly | Pressure Forming Services

August 9th, 2015

Medical laser assemblies need to meet multiple requirements. For this featured project, Gregstrom ap[...]

Portfolio

Plastic Chemical Feeder | Rotational Molding Services

Plastic Chemical Feeder | Rotational Molding Services

August 10th, 2015

Chemical feeders prepare and automatically dispense the chlorine that’s used to disinfect municipal [...]
Medical Laser Assembly | Pressure Forming Services

Medical Laser Assembly | Pressure Forming Services

August 9th, 2015

Medical laser assemblies need to meet multiple requirements. For this featured project, Gregstrom ap[...]
3D Printer Housing | Rotational Molding Services

3D Printer Housing | Rotational Molding Services

August 8th, 2015

Gregstrom is a custom rotomolder with complete assembly and testing services. Our portfolio of proje[...]

Blog

Reinforcing Ribs for Rotomolded Parts

Reinforcing Ribs for Rotomolded Parts

May 26th, 2020

Reinforcing ribs for rotomolded parts help keep nominal wall thickness to a minimum. That’s importan[...]
Thermoforming for Ventilators

Thermoforming for Ventilators

April 13th, 2020

The shortage of ventilators during the COVID-19 crisis has focused popular attention on these mechan[...]
Medical Device Manufacturing and Rotational Molding

Medical Device Manufacturing and Rotational Molding

March 23rd, 2020

Medical device manufacturing with plastics isn’t limited to injection molding, blow molding, or any [...]
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