CUSTOM ROTATIONAL MOLDING. BUILT AROUND OEM PRODUCTION.

Plastic parts engineered to perform and delivered ready to install. Gemstar's custom rotomolding solutions are tooled, molded, and assembled in Cannon Falls, Minnesota, serving OEMs in agriculture, heavy machinery, construction, and material handling who need a supplier that can keep up.

REQUEST A QUOTE

Submit the form, and a Gemstar representative will follow up within one business day.

MADE IN AMERICA

ENGINEERED AND MANUFACTURED IN CANNON FALLS, MINNESOTA, SERVING OEMS NATIONWIDE.

END-TO-END ENGINEERING

DESIGN SUPPORT FROM INITIAL CONCEPT THROUGH PRODUCITON, WITH CUSTOM TOOLING AND ONGOING TOOL MAINTENANCE IN-HOUSE.

FULLY ASSEMBLED, READY TO INSTALL

PARTS SHIP WITH INSERTS, HARDWARE, AND COMPONENTS INSTALLED. NO SECONDARY VENDORS. NO EXTRA STEPS.

ROTATIONAL MOLDING CAPABILITIES BUILT FOR OEM PRODUCTION.

Tanks. Housings. Dashboards. Covers. Structural components. Gemstar’s team supports OEM programs from first prototype through full production, with in-house tooling, engineering review, and process expertise that helps ensure every part meets your performance and design requirements.

  • Variable wall thickness controlled through mold construction
  • Molded-in metal inserts: threads, fittings, and hardware integrated directly into the part
  • Complex one-piece geometries with no weld lines, no joints, no failure points
  • Wide range of materials including HDPE, LLDPE, cross-linked PE, nylon, and Hostafrom® POM RF, with our materials team helping you select the right one for your application

REQUEST A QUOTE

YOU SHOULDN'T HAVE TO CHASE YOUR PLASTIC PARTS SUPPLIER.

Missed deadlines. Inconsistent quality. Suppliers who treat your run like an inconvenience. The cost of a bad rotomolding partner doesn’t end with the part. It shows up in your production line, your warranty claims, and your reputation with your own customers.

Gemstar is built to be the opposite. We invest in the technology, people, and tooling to outperform shops twice our size. And we back every part with the engineering, service, and support our customers count on.

BUILT TO SPEC. ON SCHEDULE. ON THE FIRST PROTOTYPE.

When outdoor gear company Gravirax needed to replace a riveted steel snowboard rack that kept denting in the field, other manufacturers told them the timeline wasn’t realistic. Gemstar redesigned the part in polyethylene and delivered the first prototype in six months, with zero revision notes.

“We had drawings and ideas, but no internal resources to execute. Gemstar brought their full engineering team to the table. We couldn’t have done this on our own.

– Carl Walker, General Manager, Gravirax