Gemstar designs and manufactures high-quality, rotationally molded tanks for gas, diesel, hydraulic, and fluid storage systems. Our engineering-driven process covers every step from design and tooling to material selection and production, resulting in durable, lightweight, and corrosion-resistant tanks. From EPA Certification to impact testing, Gemstar fuel tanks are tested and built to deliver reliable, long-term performance in demanding environments.
Rotational molding is a biaxial heat molding process used to produce single-piece plastic parts with complex geometries for rugged, high-impact applications.
Our 3-station rotomolding carousel is ideal for the sequential production of parts in mid-volume quantities with variable wall thicknesses, molded-in metal inserts, and embossed/debossed logos and graphics.
Thermoforming is the process of heating plastic sheets so that they become malleable. They are then stretched over a mold so that the plastic conforms to the desired shape. It is most appropriate for low and deep draw parts, negative draft details, precise definition detail, and multiple piece assembly part sets.
With over 60 years of continuous production experience in vacuum forming, our capabilities and knowledge are unsurpassed. From housings to covers, we deliver quality thermoformed custom parts.
Gemstar’s in-house designers, technicians, and project managers surround your project with expertis from start to finish. From design, R&D consultation and 3D rapid prototyping to material composition and sourcing, Gemstar will work closely with you to deliver a plastic design solution that meets the exacting requirements and specifications of the job.
Design, manufacture and qualify new tools faster and more efficiently by leveraging our tool making expertise. By bringing the tool creation process under the same roof that will ultimately use it, you know the resulting tool will be produced to the exact specs needed to do the job. And because we built the tool, we will know how to maintain it so that it continues to perform reliably into the future.
Gemstar custom part solutions are proudly backed by the three most
trusted words in manufacturing: Made in America. With in-house tooling, 5-axis
routing, four manufacturing processes, and a wide range of secondary and
finishing services, Gemstar is a one-stop plastic solutions powerhouse capable of
solving your greatest challenges.
Gemstar’s commitment to quality is validated through comprehensive in-house testing and certification capabilities. Our dedicated testing facility and experienced team support a wide range of industry and custom qualification requirements. From pressure and dart impact testing to EPA-certified fuel tanks, every part is rigorously evaluated. Backed by ISO certification, our disciplined processes ensure consistent performance, reliability, and compliance at every stage.
Yes, we can probably use your existing mold, however, we will need to inspect the mold to make sure it is structurally sound and that it will fit our machines.
We have a range of standard materials in-house but are always willing to partner to deliver the right solution for the application. Regarding colors, we inventory several standard colors such as black, grey, orange, blue and yellow to name just a few. Custom colors can also be utilized per your project’s specifications.
We stock high-density polyethylene, ABS, and polycarbonate. Conductive, flame-retardant, and medical grade options are also available. With regard to colors, we inventory HDPE sheeting in black and silver along with ABS in black. We can also utilize custom colors per your design specifications.
We utilize vacuum forming, snap-back billow forming, and pressure forming. Each is appropriate for different characteristics in the finished part. Starting gauge thicknesses range from .093 to .275.
Yes. Regardless of whether your part is thermoformed or rotationally molded, we can apply a logo or label to the finished product. It can be either in debossed or embossed fashion. It is recommended to add logos or lettering to rotationally molded products via custom metal plates which is an additional service we can accommodate.
We are ISO 9001:2015 Certified. We also operate so that we can meet the demanding quality standards outlined in MIL-STD-810, MIL-STD-648, and IPX.
We love visitors and the chance to show off our state-of-the-art facility and equipment. Please contact us to set up an appointment with one of our customer service team members.
Contact one of our technical experts to get started on your next custom parts project. Our sales representatives, engineers, and technical partners are here to help you through the process from concept to delivery.
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