Ningbo Chaoxu Plastic Products Co., Ltd. undertakes mold development and injection molding services for interchangeable plug power adapter housings and detachable plug charger plastic housings, supporting drawing-based mold making and sample-based reverse engineering. We integrate plastic mold R&D, precision injection molding, and supporting post-processing into one service, targeting power supply manufacturers, security electronics, smart home, and instrumentation industries, offering one-stop supporting services of product DFM evaluation, mold manufacturing, and batch injection molding.

      This adapter housing features an interchangeable plug modular structure. The main body housing can be paired with multiple detachable plug assemblies such as European and American standards, allowing one main body to adapt to multiple country specifications. The housing has a simple and rounded appearance, with sufficient internal space reserved for PCB placement. The housing offers good insulation, flame retardancy, and temperature resistance. The plug base positioning structure is precise, providing smooth insertion and extraction, stable assembly, and resistance to loosening, meeting power supply safety regulatory requirements. It is widely used in smart home, industrial equipment, and consumer chargers. Mold design, trial molding, and mass production can be carried out based on customer 3D drawings or physical samples.

      The factory is located in Mould City, Fanshi, Longshan, Cixi, Ningbo, covering an area of 2,000 square meters, with independent mold workshop and injection molding workshop. The mold workshop is equipped with a full set of processing equipment including CNC machining centers, high-speed engraving and milling machines, EDM machines, and grinders. The injection molding workshop is equipped with Haitian injection molding machines with servo robotic arms, excelling in stable mass production of flame-retardant power supply plastic parts.

Product Processing Advantages

      1. Integrated mold opening and injection molding — product structure evaluation, mold processing, trial molding and mold correction, and injection molding production are all completed in-house, reducing outsourced processes and facilitating control over delivery time and assembly consistency of the complete set of parts.

      2. Early-stage DFM manufacturability analysis — risk prediction for plug snap-fits, positioning slide grooves, and housing assembly flanges; optimization of gate and cooling solutions to prevent defects such as housing warpage, loose plugs, and excessive assembly gaps.

      3. Multiple grades of engineering plastics available — flame-retardant ABS and PC options, molded in black matte natural color, meeting safety regulatory requirements for insulation, flame retardancy, and temperature resistance of power supply products.

      4. Precision mold processing — professional ejection structures for plug positioning grooves and snap-fits, ensuring smooth plug installation/removal and stable locking; coordinated development of multi-component molds to ensure interchangeable assembly between the housing and different plugs.

      5. Complete quality control system — material and flame-retardant certificates available for flame-retardant raw materials; first article inspection, in-process patrol inspection, sampling inspection of insertion/withdrawal force, assembly gaps, and dimensions; production batch traceability.

      6. Supporting post-processing — burr trimming, appearance sorting, packaging and shipping, reducing customer secondary processing workload.

Applicable Processing Categories

      Injection molding of interchangeable plug power adapter housings

      Custom mold making for European/American standard detachable plug charger housings

      Modular switching power supply plastic housings

      Smart home power supply housings

      Multi-standard interchangeable plug adapter housings

      Customization of flame-retardant plastic housings for various modular power supplies and chargers

      Other power supply and charger plastic housings — mold feasibility can be evaluated upon providing drawings or samples.

Common Material Descriptions

      Flame-retardant ABS: cost-effective, good flowability, excellent housing appearance and texture, outstanding snap-fit toughness — the mainstream material for adapter housings, meeting conventional flame-retardant safety regulations.

      PC: high flame retardancy, high temperature resistance, strong rigidity, suitable for high-power power supply housings, excellent heat aging resistance and impact resistance.

      Material selection is determined comprehensively based on product power, flame-retardant grade, temperature resistance requirements, and cost. Engineers provide material selection recommendations.

Processing Workflow

      Customer provides 3D drawings / physical samples → DFM product structure evaluation → Output solution quotation, confirmed by both parties → Mold structure design → Mold CNC/EDM processing, polishing and fitting → T1 trial molding → Samples sent to customer for confirmation → Mold modification per feedback → Batch injection molding after sample approval → Product inspection → Packaging and delivery → After-sales follow-up.

      During the requirement evaluation stage, customers provide drawings or physical samples, specify flame-retardant grade, plug specifications, and annual output requirements — quotation solution output within 1–2 working days.