RRIM - Reinforced Reaction Injection Molding | Advanced Polyurethane Solutions
Being specialised in RRIM System Solutions
Being specialised in RRIM (Reinforced Reaction Injection Moulding) Systems guarantees high efficiency in producing quality fibre-reinforced polyurethane products. With 20 years of industry experience, we provide quality-assured, customised solutions across various sectors.
Reliable Manufacturer of Polyurethane Equipment in China
Zhejiang Henghui Machinery Co., Ltd. was established in 1999 and has since then been one of the top polyurethane equipment manufacturers. The RRIM System incorporates a servo/hydraulic piston to accurately meter polyol and isocyanate. The system can introduce more short fibres, fillers, and minerals, such as glass fibre, carbon fibre, and calcium carbonate. With an ISO 9001:2000 and an annual production of 100+ polyurethane equipment models, we have over 2,500 installations worldwide and continue to provide our clients with high-quality, reliable solutions and optimal service to ensure an uninterrupted industry.
RRIM System
Advanced Reinforced Reaction Injection Molding Solutions
The RRIM (Reinforced Reaction Injection Moulding) System is awarded efficiency, flexibility, and precision. This process incorporates servo/hydraulic pistons to metered control polyol and isocyanate, controlled by speed via servo-hydraulics. Injection of short fibres (e.g., glass fibre, carbon fibre) or fillers (e.g., calcium carbonate, barium sulphate) into a closed mould is used to pour a material system, creating high-quality results for various applications.
How It Works
In the RRIM process, a filler is blended with a component (usually a polyol) at a premixing station. The material is then dosed using a plunger-type dosing machine. The polyol and isocyanate, now containing the filler, collide and mix at high speed in the mixing head before being injected into a closed mould. The system, which is specially designed for various applications (e.g., low pouring volumes), can be operated in continuous feeding mode. The mixing head and dosing pumps are made of materials that resist wear and corrosion, ensuring longevity and reliable performance.
Two Component RRIM High Pressure Metering And Dispensing System
Demonstration of the RRIM System Work Process
Outflow(g/s)
Key Features and Benefits:
Unlike traditional systems that rely on basic mixing technologies, the RRIM System employs advanced servo- and hydraulic-driven pistons and wear-resistant components. This design offers several benefits:
Free-Flowing Material Processing
Capable of producing thin-walled parts with precision, ensuring high-quality results for intricate designs.
Dimensional Stability
Maintains stiffness and stability even at high temperatures, making it ideal for demanding applications.
Cost-Effective Tooling
Requires low investment in molds and tooling, reducing production costs while maintaining efficiency.
Enhanced Rigidity
Improves rigidity and dimensional stability under heat, ensuring reliable performance in challenging environments.
Wear-Resistant Equipment
Designed with wear- and corrosion-resistant components, ensuring durability and long-term use in industrial settings.
Customizable Feeding Modes
Offers continuous feeding mode for special applications, such as low pouring volumes, enhancing flexibility and adaptability in production.
Characteristics:
- Servo/hydraulic-driven piston for precise metering of polyol and isocyanate
- High-speed mixing head with wear- and corrosion-resistant construction
- Supports the addition of short fibers (glass fiber, carbon fiber) or fillers (calcium carbonate, barium sulphate)
- Continuous feeding mode for low pouring volume applications
- Capable of producing thin-walled parts with dimensional stability
- Low investment in molds and tooling
Application
Automotive: Bumpers, dashboards, door panels, and structural reinforcements.
Construction & Insulation: Lightweight panels, thermal insulation components, and structural elements.
Appliances: Reinforced housings, insulation parts, and durable components.
Furniture & Bedding: Ergonomic chair frames, armrests, and structural supports.
Consumer Goods: Sports equipment, protective gear, and durable casings.
Why Choose the RRIM System?
RRIM can provide some of the best processing capabilities for fibre-reinforced polyurethanes, delivering precision and efficiency. The system’s use of diverse technologies makes it the leading option for any market or industry involved in the production of lightweight, thin-walled, high-quality, and extremely dimensionally stable components. Get in touch with us to discover how RRIM systems can help refine your production technology.
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