We specialize in crafting injection molds for power bank case manufacturers, consumer electronics brands, and portable charger OEM/ODM partners—all designed to work seamlessly with your CAD files (AutoCAD, SolidWorks, Siemens NX) for 1:1 design alignment. Our molds are tailored to the unique needs of power bank cases: they need to fit tight battery compartments, align with USB/Type-C ports, and withstand daily drops—so we build them with ±0.004mm precision, impact-resistant steel, and a 180k+ production cycle lifespan to support high-volume, long-term manufacturing.
Power bank case manufacturing has specific demands that generic molds often miss—our design targets the practical challenges you face:
- Precision = Smooth Assembly: Power bank cases have to wrap around battery packs (18650/21700 cells) and align with charging ports (USB-A, Type-C, wireless charging coils). Even 0.008mm deviation can cause “battery fit gaps” or “port misalignment,” leading to 10%+ assembly rework and delayed production;
- Durability Matters for End Products: Power banks are often carried in bags/pockets or dropped—flimsy case molds (made with standard steel) produce shells that crack easily, raising your terminal product’s return rate. Our impact-resistant steel fixes this by making cases tougher;
- CAD Compatibility Saves Time: Many molds require extra steps to convert CAD files, but we import your design directly—no file rework means you skip 3–5 days of delays, getting your power banks to market faster.
We accept all mainstream CAD formats and work directly with your 3D designs—whether your power bank is slim (10–15mm thick), high-capacity (20k mAh+), or has built-in wireless charging. Our team first reviews your CAD file to optimize details: for example, refining the battery compartment’s draft angle to avoid stuck resin, or adjusting port cutouts to ensure tight fits. No more “design vs. mold mismatch.”
Every power bank case needs to hold batteries securely and align ports with internal circuits. Our molds maintain ±0.004mm precision for critical areas: battery 仓 (compartments) edges, port openings, and button slots. This means your cases snap shut without gaps, ports connect reliably, and assembly teams don’t waste time fixing misalignments.
We use impact-resistant steel (54–56 HRC hardness) that stands up to two key demands:
- End-product durability: The steel transfers toughness to the case—your power banks resist cracks from drops (ideal for outdoor/on-the-go models);
- Mold longevity: Unlike standard steel (which wears out after 80k cycles), our impact-resistant steel handles 180k+ production cycles—so you don’t need to replace molds mid-season (e.g., during holiday power bank demand peaks).
Popular power bank models often need 100k–200k units per production run. Our 180k+ cycle lifespan means one mold can cover most of your needs—reducing mold replacement costs by 50% vs. standard options, and avoiding 4–6 days of downtime between molds.


Our mold production follows a standardized process: we test steel hardness before machining, use precision tools (Zeiss CMM) to verify ±0.004mm tolerance, and run 50+ test injections with your target resin to check case quality. We also provide traceable records—material certificates, inspection logs—to help you keep track of your supply chain.
- Power Bank OEM/ODM Manufacturers: For mass-producing standard or white-label power banks, where 180k+ cycles and fast CAD support keep costs low and delivery on time.
- Consumer Electronics Brands: For launching branded power banks (e.g., phone brand accessories, outdoor gear lines), where precision ensures your design’s unique details (logo embossing, slim profiles) are replicated exactly.
- Custom Charger Suppliers: For niche power banks (e.g., solar-powered, ruggedized models), where impact-resistant steel and tight precision meet specialized needs.
If you have a CAD file for your power bank case, upload it to our platform—our engineers will send a free DFM (Design for Manufacturability) report (with tips to optimize your design) and a detailed quote within 24 hours. We’ll adjust any details needed to make sure the mold fits your production goals.