LINKING SERIOUS BUYERS TO THE BEST SUPPLIERS
Serving the UK & Irish plastics industry
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People. Product. Partnership.
CJ delivers precision tooling, plastic injection moulding, assembly, pad printing, and ultrasonic welding under one roof.
Flexible batches, fast turnaround, and UK reshoring expertise.
Get in touch to turn your concept into components.
Comprehensive post-moulding support including full component assembly, pad printing and ultrasonic welding. We assemble parts ranging from simple multi-component products to more complex builds using dedicated jigs and fixtures for accuracy and repeatability.
Pad printing allows precise application of logos, graphics and identification marks directly onto moulded parts, supporting both functional and aesthetic requirements.
Ultrasonic welding provides strong, clean and consistent joining of plastic components, ideal for high-integrity or tamper-resistant assemblies.
All post-mould services are carried out in-house for full control over quality, consistency and lead times.
Support for early-stage assembly and post-mould development, including prototype builds using 3D-printed components to validate fit, alignment and assembly feasibility before full production. Dedicated jigs and fixtures can be designed and manufactured in-house to ensure accuracy, repeatability and efficient workflow during assembly. We also carry out sample builds and small pilot runs to validate processes before scaling to larger quantities.
Full assembly of multi-component products
• Pad printing for branding, identification or functional marking
• Ultrasonic welding for strong, clean, permanent bonds
• Application of inserts, fasteners or supplementary hardware
• Kitting and sub-assembly preparation
• Quality checks throughout the process to ensure consistency
• Packaging support for shipment-ready finished parts
All services are completed in-house, giving customers full control over quality, consistency and lead times.
Post-mould services are ideal for customers looking to keep production streamlined through a single manufacturing partner. By combining moulding, assembly and finishing under one roof, CJ reduces handling, transport costs and risk of damage while maintaining tight quality control across every stage.
Our team can advise on assembly-friendly part design, tolerances, joining techniques and material choices to ensure components fit and function as intended. Whether you need simple clip-fit assembly or more complex builds requiring welding, printing or multiple components, CJ provides a reliable, efficient and integrated service.
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Please note this facility is only for companies interested in buying products or services from this PlastikCity Partner. DO NOT use this facility if you’re looking to sell products. Your email address and company will be blocked from future use of PlastikCity if you ignore this notice.