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.