PlastikCity showcases the top suppliers of reaction injection moulding (RIM) machines operating in the UK and Irish plastics industry. Our stringent vetting process ensures that all listed companies boast financial stability and provide premium products or services. Gain a detailed insight into each company by accessing their full profiles. Streamline your decision-making with our free comparative quote feature, allowing you to select or deselect companies to suit your needs.
KraussMaffei is one of the world's leading suppliers of machines, systems and solutions for the production and processing of plastics and rubber. KraussMaffei's range of products and services covers all aspects of injection moulding, extrusion, and reaction technology.
RIM (Reaction Injection Moulding) machines are specialised manufacturing systems designed to produce large, lightweight plastic parts through the injection of reactive liquid components into closed moulds. Unlike traditional injection moulding, RIM processes involve mixing two or more liquid chemical components that react and cure within the mould cavity to form the final product.
The RIM process begins with separate storage and conditioning of liquid components, typically polyols and isocyanates for polyurethane systems. These components are precisely metered, mixed at high pressure in a mixing head, and immediately injected into the mould where they react, expand, and cure to form the finished part. The low-pressure moulding process enables the production of large, complex parts with excellent surface finish and structural properties.
Modern RIM machines provide precise control over the reactive moulding process, featuring sophisticated metering systems that accurately measure and proportion liquid components to maintain consistent material properties. High-pressure mixing heads ensure thorough component blending whilst minimising air entrapment, delivering uniform material distribution throughout complex mould geometries.
Temperature control systems maintain optimal processing conditions for both raw materials and moulds, ensuring proper reaction kinetics and cure characteristics. Many systems incorporate automated mould handling, part ejection, and process monitoring to maximise production efficiency whilst maintaining consistent quality standards.
Advanced RIM machines offer flexibility for processing various chemical systems including rigid and flexible polyurethanes, polyurea, and specialty formulations. Computerised control systems provide recipe storage, process monitoring, and quality assurance features that ensure repeatable production of parts meeting strict dimensional and performance specifications.
RIM machinery serves diverse manufacturing requirements for large, lightweight components, including:
PlastikCity connects you with established suppliers of RIM machinery across the UK and Ireland. Our platform eliminates the complexity of researching specialised RIM equipment providers, allowing you to compare machine capabilities, processing specifications, and chemical system compatibility from multiple manufacturers. Each supplier has been assessed for technical expertise, installation support, and long-term service capabilities essential for successful RIM operations. The quotation process enables you to receive detailed proposals tailored to your specific part requirements, production volumes, and material specifications, helping you select the most suitable RIM system for your manufacturing needs.
Most RIM machines are designed for polyurethane systems but many can handle polyurea, epoxy, and other reactive systems. The choice depends on your part requirements and supplier recommendations for material compatibility with their equipment.
RIM processes excel at producing large parts (up to several metres) with complex geometries, undercuts, and varying wall thicknesses. Suppliers can advise on size limitations and design considerations for your specific applications.
RIM cycle times are typically longer due to chemical reaction and cure requirements, ranging from minutes to hours depending on part size and material system. However, the process enables much larger parts than conventional injection moulding.
RIM moulds are typically made from aluminium, steel, or composite materials depending on production volume and part requirements. The low-pressure process allows lighter mould construction compared to high-pressure injection moulding.
Most RIM machinery suppliers work closely with chemical suppliers to recommend appropriate material systems for specific applications. They typically provide technical support for material selection, processing parameters, and troubleshooting.
RIM machinery suppliers typically offer comprehensive training covering equipment operation, material handling, process optimisation, and maintenance. Ongoing technical support includes process development assistance and equipment service support.
PlastikCity is the UK and Ireland's leading procurement platform for the plastics industry. We connect buyers with vetted suppliers across over 400 categories, making it easier to find the right partner for your project.
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