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Dongguan Yyi Technology Co., Ltd.

  • China,Dongguan ,Guangdong
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China High Strength Custom Polyurethane Injection Molding – RIM (Reaction Injection
China High Strength Custom Polyurethane Injection Molding – RIM (Reaction Injection

  1. China High Strength Custom Polyurethane Injection Molding – RIM (Reaction Injection
  2. China High Strength Custom Polyurethane Injection Molding – RIM (Reaction Injection

High Strength Custom Polyurethane Injection Molding – RIM (Reaction Injection

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Place Of Origin Guangdong, China
Mold Material Aluminum or steel
Production Process Mixing and injecting two liquid components into a mold
Part Size Small to large
Lead Time Shorter lead time for production
Chemical Resistance Resistant to chemicals and solvents
Color Options Wide range of colors available
Production Volume Medium to high volume
Surface Finish Smooth and glossy
Strength High strength and durability
Part Complexity Highly complex and detailed
Material Polyurethane (PU)
Mold Cost Lower than traditional injection molding
Cost Lower cost compared to other molding processes
Heat Resistance Can withstand high temperatures
Brand Name Reaction Injection Molding
Model Number YYI-12

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  1. Product Details
  2. Company Details

Product Specification

Place Of Origin Guangdong, China Mold Material Aluminum or steel
Production Process Mixing and injecting two liquid components into a mold Part Size Small to large
Lead Time Shorter lead time for production Chemical Resistance Resistant to chemicals and solvents
Color Options Wide range of colors available Production Volume Medium to high volume
Surface Finish Smooth and glossy Strength High strength and durability
Part Complexity Highly complex and detailed Material Polyurethane (PU)
Mold Cost Lower than traditional injection molding Cost Lower cost compared to other molding processes
Heat Resistance Can withstand high temperatures Brand Name Reaction Injection Molding
Model Number YYI-12
High Light High strength Polyurethane Injection Molding ProcessCustom Polyurethane Injection Molding ProcessCustom Rim Reaction Injection Molding

Product Overview

Our High Strength Custom Polyurethane Injection Molding service uses the Reaction Injection Molding (RIM) process to produce durable, lightweight, and impact-resistant plastic components. Polyurethane-based two-component systems are injected into a low-pressure mold where they chemically react and cure to form rigid or semi-rigid parts.

The RIM process is ideal for low- to medium-volume production of complex parts requiring structural integrity, smooth surface finishes, and design flexibility. RIM parts can also incorporate inserts, internal ribs, variable wall thicknesses, and molded-in features.


Key Parameters

Parameter Specification
Process Type Reaction Injection Molding (RIM)
Material Polyurethane (rigid or semi-rigid), structural foam
Part Size Range Small to large (up to 2 meters)
Wall Thickness 3 mm to 25 mm (variable wall thickness supported)
Mold Material Aluminum or epoxy composite (cost-effective tooling)
Surface Finish Smooth, matte, semi-gloss, textured, paint-ready
Color Options Mold-in color or post-painted (custom RAL or Pantone)
Tolerance ±0.2 mm standard; tighter tolerances available in machined areas
Production Volume 10 to 5,000 units
Lead Time Tooling: 2–4 weeks; Production: 7–15 days
Certifications ISO 9001, RoHS compliant

Selling Points

  1. High Strength & Impact Resistance
    Polyurethane RIM parts offer excellent mechanical performance, ideal for applications requiring toughness, flexibility, and resistance to impact or fatigue.

  2. Flexible and Complex Design Capabilities
    RIM allows for complex geometries, varying wall thicknesses, undercuts, bosses, and embedded inserts without compromising structural strength.

  3. Cost-Efficient Tooling
    Compared to conventional injection molding, RIM uses lower-cost molds, making it highly economical for prototyping and small-to-medium production runs.

  4. Lightweight Construction
    The RIM process creates lightweight yet rigid parts, making it ideal for vehicle panels, machine covers, and electronic enclosures.

  5. Superior Surface Quality
    Achieve smooth, paintable surfaces directly out of the mold, reducing the need for secondary finishing and enhancing the aesthetic appeal.

  6. Low Internal Stress & Warpage
    Due to low-pressure and low-viscosity molding, parts are less prone to shrinkage, warping, or residual stress—ensuring dimensional stability.


Future Trends in Polyurethane RIM Molding

  • Bio-Based Polyurethanes: Increasing demand for sustainable, plant-based RIM materials to reduce environmental impact.

  • Smart Panel Integration: RIM parts with embedded sensors, electronics, or heating elements for next-gen smart equipment.

  • RIM Foam Hybrid Structures: Combination of rigid skins and structural foam cores for even lighter and stronger parts.

  • Advanced Surface Texturing: Mold replication of brushed metal, leather, or fabric textures without post-processing.

  • Rapid Tooling & Digital Mold Design: 3D-printed or machined molds accelerating development cycles and reducing tooling costs.


Application Scenarios

  • Automotive Panels & Bumpers: Durable, impact-resistant body panels, trims, and covers with aesthetic finishes.

  • Industrial Equipment Housings: Tough enclosures and panels for heavy-duty machinery, HVAC, and manufacturing systems.

  • Medical Device Casings: Ergonomic and hygienic plastic shells for medical and laboratory equipment.

  • Consumer Electronics Enclosures: Lightweight and stylish housings for kiosks, terminals, and smart devices.

  • Robotics & Automation Covers: Custom-molded protective shells and panels for robotic systems and production lines.


Frequently Asked Questions

Q1: What’s the difference between RIM and traditional injection molding?
A1: RIM uses low-pressure injection of reactive polyurethane components that chemically cure in the mold. It allows larger, thicker, and more complex parts than conventional injection molding with lower tooling costs.

Q2: Can I use RIM for low-volume production?
A2: Yes. RIM is optimized for low to mid-volume production (10–5,000 units) without the high tooling investment of traditional processes.

Q3: Are RIM parts paintable or color customizable?
A3: Absolutely. We offer mold-in color or post-painted options in custom RAL/Pantone shades. Surfaces are smooth and ready for finishing.

Q4: What materials are available for polyurethane RIM?
A4: We offer rigid polyurethane, elastomeric PU, structural foam PU, and flame-retardant or UV-stable formulations depending on your application.

Q5: How long does it take to develop a RIM mold?
A5: Typical tooling lead time is 2–4 weeks, depending on part complexity. Once the mold is ready, production can begin in as little as 7 days.


Choose our Custom Polyurethane Reaction Injection Molding (RIM) process to create lightweight, strong, and complex plastic parts—quickly, cost-effectively, and with exceptional surface quality.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2010

  • Total Annual:

    3000000-5000000

  • Employee Number:

    100~120

  • Ecer Certification:

    Verified Supplier

About Dongguan YYI Technology Co., Ltd At Dongguan YYI Technology Co., Ltd., we are dedicated to transforming your concepts into tangible innovations. With over 20 years of industry experience, our company has evolved into a leading provider of rapid prototyping and low-volume manufacturing solut... About Dongguan YYI Technology Co., Ltd At Dongguan YYI Technology Co., Ltd., we are dedicated to transforming your concepts into tangible innovations. With over 20 years of industry experience, our company has evolved into a leading provider of rapid prototyping and low-volume manufacturing solut...

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  • Dongguan Yyi Technology Co., Ltd.
  • Subo Kechuang Center,No.12 Guanzhang West Road.Zhangmutou,Dongguan,Guangdong
  • https://www.3d-printedservice.com/

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