Custom Injection Molding & Assembly Service for Mini Power Bank Enclosures
Product Introduction
As a leading plastic injection molding factory, we specialize in producing high-precision housing components for portable power banks. This mini capsule power bank kit is a perfect example of our manufacturing capabilities, featuring complex internal structures and a seamless external finish.
We don't just supply the plastic shells; we offer a complete manufacturing partnership. While our core strength is producing durable ABS enclosures, we also provide sub-assembly and full assembly services to help our clients reduce production time and costs. Whether you need a custom-designed mold for your unique PCB or a full-service factory to handle everything from injection to final box assembly, we are equipped to support your project from start to finish.
Manufacturing & Service Advantages
- Precision Injection Molding: We produce all parts of the power bank-main body, decorative caps, and internal brackets-with a tolerance of ±0.03 mm to ensure a perfect fit for electronic components.
- One-Stop Assembly Support: Beyond molding, we can assist with component integration, including snap-fitting, ultrasonic welding, and internal part placement.
- High-Quality ABS Material: We use virgin ABS for its excellent impact resistance and heat stability, ensuring the power bank is safe for daily use.
- Custom Branding & Finishing: We offer in-house silk-screen printing, laser engraving, and custom Pantone color matching to make your product stand out in the market.
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Service Category |
Details |
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Tooling & Mold Design |
Professional DFM analysis and in-house mold fabrication |
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Material Options |
High-impact ABS, Flame-retardant ABS (UL94-V0), PC/ABS blends |
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Assembly Services |
Plastic part interlocking, internal bracket installation, and final casing assembly |
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Port Precision |
Accurate cutouts for USB-C, Lightning, and Micro-USB ports |
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Surface Treatment |
Matte, high-gloss, rubberized coating, or UV oil painting |
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Production Capacity |
Scalable for high-volume orders with strict QC inspection |
Our "Factory-to-Client" Workflow
- Engineering Review: We optimize your 3D design for efficient injection molding.
- Mold Making: Precision CNC/EDM tooling ensures consistency across millions of units.
- Production & Assembly: We inject the parts and, if required, perform the assembly or sub-assembly of the housing components.
- Logo & Packaging: Final aesthetic touches and protective packaging before shipping.
Application & Industry Use
- Power Bank Brands: Customizing unique shell designs for new product launches.
- Electronic Gadget OEM: Precision plastic parts for small portable chargers.
- Promotional Tech Kits: Bulk production for branded corporate gift suppliers.
Company Introduction


Injection Workshop

Raw Material Warehouse

Hardware Workshop

Assembly Workshop

Laboratory

Office Area
Injection Molding Workshop Planning
Organizing the workshop into dedicated sections enhances workflow clarity and boosts overall production efficiency.


Factory equipment
We rely on advanced manufacturing equipment to maintain precision and consistent production performance.


Packing and Shipping
Customized Packaging
Logo printing, label customization, and tailored cartons are all available. Export packing includes heavy-duty cartons or steel-frame reinforcement for safety.
Shipping
Large shipments go by sea or air freight. Small packages are dispatched via DHL, UPS, FedEx, and TNT.

FAQ
Q1: What do I need to send for product customization?
A1: Share drawings and specifications; our team replies with a quote within 24 hours.
Q2: Is an NDA available?
A2: Yes, we can sign your NDA.
Q3: Can I put my own logo on the item?
A3: Yes, OEM/ODM branding is welcome.
Q4: Can I send a sample instead of drawings?
A4: Yes, we accept samples and provide free mold support.
Q5: What are your standard payment terms?
A5: 30% deposit + T/T balance with B/L copy.
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