Reaction Injection Molding (RIM)

At ThermoFab, we specialize in providing comprehensive Reaction Injection Molding (RIM) molding solutions for heavy gauge plastic enclosures and single use components for the medical and other critical highly regulated industries.

COMPREHENSIVE RIM SOLUTIONS

Reaction Injection Molding (RIM) is a highly versatile manufacturing process designed to produce large, complex plastic parts with exceptional strength, durability, and precision. Widely recognized for its adaptability, efficiency, and cost-effectiveness, RIM molding is well suited for production quantities of 5,000 pieces/year.

ThermoFab provides comprehensive RIM molding solutions customized to your specifications. With extensive expertise in managing large, multi-part projects, we are your trusted partner for delivering superior results, from prototype development to full-scale production.

Our ISO 13485:2016 certification underscores our unwavering commitment to quality, ensuring every RIM molded product meets the highest quality industry standards.

Check out our case studies for more information

Collaborate on your prototype with our experts
Reaction Injection Molded Part

ADVANTAGES OF RIM MOLDING

Widely used across various industries, RIM stands out for its adaptability, efficiency, and cost-effectiveness.

  • Design Flexibility: RIM molding allows for the creation of intricate designs with varying wall thicknesses, undercuts, and complex geometries
  • Cost-Effective Tooling: Operating at low pressures and temperatures, RIM uses less expensive mold materials, such as aluminum, which reduces tooling costs and shortens production timelines
  • Reduced Manufacturing Costs: RIM molding is ideal for low-to-medium volume production, offering lower tooling and setup costs, while also providing competitive production costs for large parts compared to traditional injection molding
  • Lightweight and Durable Parts: The process produces large lightweight components that are structurally sound and meet tight tolerances, making it ideal for applications requiring both durability and reduced weight
  • Encapsulation Capabilities: RIM enables the incorporation of molded-in attachment points, such as electronic components, magnets, and metal inserts, enhancing functionality and minimizing assembly steps
  • Scalability for Large Parts: RIM is particularly suited for producing up to 4′ x 3′ sized single-piece components without the need for additional fabrication or assembly processes, reducing time and complexity in production

size capabilities

With our cutting-edge manufacturing capabilities, we’re equipped to produce components of various sizes. Whether you require intricate designs or larger-scale productions, we can accommodate your needs with precision and efficiency. Additionally, our expertise extends to achieving a wide range of part wall thicknesses, ensuring optimal performance for your applications.

  • Can manufacture components up to to 4′ x 3′
  • Part wall thickness from .04” to .38” (1 mm to 10 mm)
Thermoformed sample part
Reaction Injection Molding Process

RIM MOLDING PROCESS

Reaction Injection Molding (RIM) is an advanced manufacturing process used to produce lightweight, durable, and high-quality plastic components. The process involves combining two liquid polymers in a mixing head, which are then injected into a closed mold under low pressure. Inside the mold, the materials chemically react and expand to fill the mold cavity. The low-pressure injection minimizes material stress, resulting in parts with superior strength and durability.

This process allows for the creation of complex geometries and intricate details that would be challenging to achieve with traditional molding methods. With its ability to deliver high-performance parts at a lower cost, RIM is a preferred choice for manufacturers seeking precision and design flexibility.