Ningbo Chaoxu Plastic Products Co., Ltd. undertakes mold development and injection molding services for electric tool lithium battery charger housings, which are supporting plastic parts for new energy tools. We support drawing-based mold making, sample-based reverse engineering, and injection molding with customer-supplied materials and molds. We integrate mold design and manufacturing, precision injection molding, and post-processing into one service, targeting electric tool, lithium battery new energy, and tool accessory manufacturers, providing complete services from product DFM evaluation and mold manufacturing to batch injection molding.

      The charger housing is a protective enclosure for power supply products, with a circuit board and electronic components installed inside. The product requires housing strength, flame retardancy and insulation, heat dissipation slot structure, and battery socket mating precision. The positional accuracy of shell slots, positioning bosses, heat dissipation grilles, and nameplate character positions directly affects assembly, plug-in/withdrawal feel, and electrical safety. Mold development, trial molding, and large-batch injection molding production can be carried out based on customer drawings or physical samples.

      The factory is located in Mould City, Fanshi, Longshan, Cixi, Ningbo, covering a 2,000-square-meter production area, 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, meeting stable batch production requirements for power supply plastic parts.

Product Processing Advantages

      1. One-stop mold opening and injection molding service — product structure evaluation, mold processing, trial molding and mold correction, and injection molding production are all completed in-house, reducing outsourced processes and ensuring controllable delivery time and quality.

      2. Early-stage DFM risk analysis — structural evaluation of charging socket mating positions, heat dissipation slots, snap-fits, and positioning bosses to proactively avoid issues such as overly tight or loose assembly, housing deformation, and snap-fit breakage.

      3. Power supply-specific plastic materials available — ABS, ABS+PC, flame-retardant PC and other insulating flame-retardant grades can be selected to meet power supply housing safety and flame-retardant requirements. Nameplates and logo characters can be integrally molded directly in the mold.

      4. Precision mold processing — ensuring dimensional tolerances of the battery plug-in cavity for smooth battery insertion and withdrawal, and heat dissipation grilles free from short-shot and flash defects.

      5. Complete quality control — material reports available for raw materials; first article inspection, in-process patrol inspections, key inspection of critical assembly dimensions, and production batch traceability.

      6. Supporting post-processing — full appearance inspection, simple assembly, packaging and shipping, reducing customer secondary processing workload.

Applicable Processing Categories

      Injection molding of lithium battery charger housings

      Electric tool power adapter housings

      New energy tool supporting plastic parts

      Mold development for charging base plastic housings

      Customization of flame-retardant power supply housings

      In-mold logo and character integrated molding

      Customization of small energy storage power supply plastic housings

      Other new energy and tool power supply plastic parts — mold feasibility can be evaluated upon providing drawings or samples.

Common Material Descriptions

      ABS: good toughness, cost-effective, commonly used for ordinary charger housings; flame-retardant grades available.

      ABS+PC: impact-resistant, temperature-resistant, good dimensional stability, mostly used for mid-to-high-end power supply housings.

      PC: high flame retardancy, excellent insulation performance, suitable for power supply housings with high safety regulatory requirements.

      Material selection is determined comprehensively based on safety and flame-retardant grades, product working conditions, and cost. Engineers provide material selection recommendations.

Processing Workflow

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

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

      Mold design focuses on the charging plug-in cavity, heat dissipation grilles, snap-fits, and nameplate character structures; processing begins after design confirmation.

      Trial molding tests dimensions, plug-in/withdrawal assembly, and appearance; mass production starts after customer confirmation.

Quality Control

      Raw material incoming inspection verifies grade; material certificates available for flame-retardant materials.

      Dimension verification at each mold processing stage, with focus on key tolerances of plug-in cavities and snap-fits.

      Injection molding implements first article confirmation, scheduled patrol inspections, monitoring defects such as deformation, short shots, cracks, and flash.

      Finished products undergo key full inspection of plug-in positions, snap-fits, and heat dissipation slots; defective products are isolated and sorted.

      Machine and raw material batches are recorded for full production traceability.

Factory Basic Information

      Factory covers about 2,000 square meters, divided into independent mold, injection molding, and assembly workshops.

      Mold workshop has over ten sets of complete processing equipment including CNC machining centers, high-speed engraving and milling machines, EDM machines, and grinders.

      Injection molding equipment consists of Haitian injection molding machines with servo robotic arms and production monitoring systems.

      Core engineers have 25 years of plastic molding experience and 15 years of automotive parts quality control experience, with OEM supporting service experience.

      Factory is located in Mould City, Fanshi, Longshan, Cixi, Ningbo, near National Highway 329, with convenient logistics and transportation.

Cooperation Steps

      1. Consultation & contact: Provide 3D drawings or physical samples, specify annual output, flame retardancy, and assembly requirements; response within 1 working day.

      2. Solution evaluation: Engineers complete product evaluation and output mold and injection molding quotation within 1–2 working days.

      3. Quotation confirmation: Confirm mold steel, plastic material, delivery time, and cooperation terms.

      4. Mold development: Complete structural design, processing, assembly, trial molding, and mold correction; cycle time depends on product complexity.

      5. Sample confirmation: Send trial samples; customer verifies plug-in/withdrawal, assembly, and appearance, completing mold acceptance.

      6. Mass production: Carry out injection molding per order, deliver after inspection and packaging.

FAQ

Q: Can molds be made with only physical charger housing samples but no drawings?

A: Yes, we support sample-based reverse engineering to generate 3D models before mold development.

Q: Can power supply housings requiring flame retardancy and insulation be produced?

A: Yes, we select corresponding flame-retardant insulating plastic materials to meet power supply housing safety regulatory requirements.

Q: Can nameplate text and symbols on housings be directly molded?

A: Yes, concave/convex characters can be engraved on the mold insert and directly formed during injection molding. Silk-screen printing and laser engraving are also supported as post-processing.

Q: Does charger housing injection molding support small-batch trial orders?

A: After mold acceptance, everything from small trial orders to large batch orders can be undertaken.

Q: Are samples provided for confirmation before mass production?

A: Yes, samples are provided after trial molding. Mass production starts only after customer confirmation.

Contact Information

Company name: Ningbo Chaoxu Plastic Products Co., Ltd.

Factory address: No. 5, Fanshi Weisan Road, Longshan Town, Cixi City, Ningbo City, Zhejiang Province

Business: injection molding of charger power supply housings, new energy tool plastic parts, custom mold making for flame-retardant plastic housings, precision injection molds, sample/drawing-based customization

1688 store: https://chaoxusuliao.1688.com