Custom Silicone Power Back Cover - Overmolding Technology from China Suppliers and Factory for Superior Protection
Custom Manufacturing by Your Drawings
What truly distinguishes us is our commitment to making your unique product vision a reality. We understand that every power bank has its own specific dimensions, contours, and functional requirements—from precise cutouts for USB ports and LED indicators to exact button placements and thickness specifications.
Simply provide us with your 2D engineering drawings, 3D files (STEP/IGES/STP), or physical reference samples, and our experienced engineering team will handle the rest. From complex geometries with integrated button features to precise wall thickness requirements for optimal protection, we can create a silicone cover that integrates perfectly with your existing power bank housing.
This OEM/ODM service ensures your power bank products achieve the exact fit, feel, and protective performance your brand and customers demand—qualities that standard, off-the-shelf covers simply cannot provide.
Technical Specifications
Product Name |
Custom Silicone Power Bank Cover |
Material |
100% Liquid Silicone Rubber (LSR) |
Compatible Substrates |
ABS, PC, PC/ABS, Nylon, and other engineering plastics |
Color |
Fully Customizable (Pantone Matching Available) |
Dimensions |
Custom Sizes (Built to your technical drawings or samples) |
MOQ |
1000 Pieces |
Process |
High-precision Injection / LSR Overmolding |
Hardness Range |
20 Shore A to 80 Shore A |
Certifications |
FDA, LFGB, RoHS, REACH (Available upon request) |
Lead Time |
Tooling: 15–20 working days / Mass Production: 25–35 working days |
Precision Engineering for Perfect Integration
Every custom power bank cover we produce undergoes rigorous quality control to ensure flawless performance:
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Micro-Precision Tooling Our injection molds are manufactured with micron-level accuracy, ensuring perfect alignment with your device's ports, buttons, LED indicators, and branding elements.
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Consistent Wall Thickness Advanced process control ensures uniform silicone distribution for reliable protection and consistent tactile feel across every unit.
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Flash-Free Manufacturing Clean, precise edges require no secondary trimming or finishing, ensuring a professional appearance.
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Button Integration We can integrate button features directly into the cover design, with tactile feedback engineered to your specifications.
Comprehensive Customization Options
Beyond dimensional accuracy, we offer extensive customization to ensure every aspect of your power bank cover reflects your brand's identity and performance requirements:
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Exact Dimensions Built precisely to your technical drawings, accommodating any device geometry and port configuration.
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Color Matching Select from our extensive color library or provide a Pantone code for perfect brand alignment across your product line.
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Durometer (Hardness) Selection Choose from various silicone hardness levels (from soft 30 Shore A to firmer 70 Shore A) to achieve the exact tactile feel and grip you desire.
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Surface Finish Options include smooth matte, glossy, soft-touch, or textured finishes to match your design aesthetic.
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Branding Integration Your logo, product name, or design elements can be embossed, debossed, or laser-etched directly into the silicone surface.
Frequently Asked Questions
Q
What file formats do you accept for custom power bank cover manufacturing?
We accept a wide range of design file formats including 2D engineering drawings (PDF, DWG, DXF) and 3D CAD files (STEP, IGES, STP). If you don't have digital files, you can also send us a physical reference sample and our engineering team will reverse-engineer and create the necessary mold tooling.
Q
What is the minimum order quantity (MOQ) for custom silicone power bank covers?
Our standard MOQ is 1,000 pieces per design. This ensures cost-effective tooling amortization and consistent production quality. For larger volumes, we offer competitive tiered pricing. Please contact us to discuss your specific project requirements.
Q
How long does it take to produce a custom silicone power bank cover from scratch?
The tooling (mold fabrication) phase typically takes 15–20 working days. Once the mold is approved and mass production begins, delivery takes an additional 25–35 working days. We recommend sharing your files early to allow sufficient lead time, especially for seasonal or launch-critical orders.
Q
Can I get a sample before placing a full production order?
Yes. After mold fabrication is complete, we produce pre-production samples (T1 samples) for your review and approval. You can evaluate fit, finish, color accuracy, and tactile feel before authorizing mass production. Any required adjustments are made at this stage to guarantee final product quality.
Q
What silicone hardness level is recommended for a power bank cover?
For power bank covers, we typically recommend a hardness range of 40–60 Shore A, which balances flexibility for easy installation with firmness for reliable drop protection. However, we can produce covers in any hardness from 20 Shore A (very soft) to 80 Shore A (firm) based on your specific product and user experience requirements.
Q
Are your silicone power bank covers compliant with international safety certifications?
Yes. Our liquid silicone rubber (LSR) materials are available with FDA, LFGB, RoHS, and REACH compliance upon request. These certifications are especially important for products entering the US, EU, and other regulated markets. Please specify your target market during the inquiry stage so we can prepare the appropriate documentation.



