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How to make a good iPad case
2025-03-08 16:13:31

Crafting Premium iPad Cases Through PC Primary injection molding & TPU Secondary Overmolding



Here’s how our advanced dual-material process creates exceptional iPad cases:


1.  Structural Foundation: PC Primary Injection Molding


Material: High-grade polycarbonate (PC) with 30% glass fiber reinforcement


Process:


Precision molds (tolerance ±0.1mm) inject PC at 300-320°C


Forms rigid skeleton with:


Integrated mounting points for accessories


Reinforced corners (2.5mm thickness)


Precise camera/button cutouts (laser-verified alignment)


Advantages:


MIL-STD-810H drop protection (1.5m height)


Ultra-slim profile (1.8mm base thickness)


2.  Functional Enhancement: TPU Overmolding


Material: Anti-yellowing TPU (Shore 85A hardness)


Process:


Plasma activation of PC surface (60W, 0.5mBar)


Secondary molding at 190-210°C creates:


Shock-absorbing edges (3mm TPU encapsulation)


Non-slip grip patterns (0.3mm raised texture)


Seamless port covers (IP67 dust/water resistance)


Bonding Performance:


Peel strength ≥4.5N/mm (exceeds ASTM D903)


Passes 200,000 flex cycles (3x industry standard)


3.  Smart Integration


Apple Ecosystem Compatibility:


Built-in Hall sensor slots for auto wake/sleep


Magnetic array alignment (12-point positioning for iPad Pro)


User-Centric Design:


Multi-angle kickstand (55°/70° positions)


Pencil holder with wireless charging coil (Qi v1.3)


4.  Quality Assurance


Testing Protocols:


5,000-cycle hinge durability test


72hr UV exposure (anti-yellowing verification)


-40°C to 85°C thermal shock testing


Sustainability:


100% recyclable PC/TPU material blend


REACH-compliant antimicrobial treatment


Key Advantages vs. Competitors:

? 0.3mm ultra-precise Apple Pencil alignment

? 28% lighter than aluminum cases (avg. 310g for 12.9")

? 0.5mm raised screen lip + microfiber lining



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    Ms.Fang
  • Phone
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  • Feipeng Industrial Park, No.171 Ping'an Avenue, Longgang District, Shenzhen, China
    Feipeng Industrial Park, No.171 Ping'an Avenue, Longgang District, Shenzhen, China

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