Client-Drawn Earbud Case Injection Molds – For Wireless Headphones, ±0.003mm Precision, S136 Anti-Rust Steel
Heya Precision: Client-Drawn Earbud Case Injection Molds
Engineered exclusively for wireless headphone OEM/ODM manufacturers, consumer electronics brands, and TWS (True Wireless Stereo) accessory suppliers, our client-drawn earbud case injection molds are precision-crafted to 1:1 match your 2D/3D drawings (CAD, STEP, IGES, DXF). Tailored for all mainstream wireless headphone types—mini TWS earbuds, over-ear noise-canceling models, and sports waterproof variants—they excel at replicating tiny, complex earbud case details (micro-charging contacts, noise-canceling vent holes, magnetic lid grooves) with ±0.003mm precision, while S136 anti-rust steel ensures durability against production cleaners and long-term use.
Why Heya's Earbud Case Molds Stand Out
Earbud case production faces unique challenges that generic molds can't solve—our design directly targets these pain points to protect your product functionality and production efficiency:
- Tiny Dimensions Demand Ultra-Precision: Earbud cases are 3-5cm in size, with micro-features (e.g., 1mm-wide charging contacts, 0.8mm-thick lid hinges). Even 0.005mm deviation causes "charging contact misalignment" (60% of defective cases) or "lid won't snap shut"—raising scrap rates to 18%+;
- Rust Ruins Mold Life in Humid Production: Earbud case molds are often cleaned with water-based solvents (to remove resin residues), and standard steel molds rust after 50k cycles. This forces 2-3 mold replacements per year for high-volume runs;
- Mismatched Drawings Delay Custom Designs: Many molds only support basic 2D files, but TWS brands rely on 3D drawings to define subtle curves (for ergonomic fit) or hidden structures (e.g., battery compartment ribs). File mismatches add 4-6 days of rework, missing product launch windows.
Heya solves these with client-drawn accuracy, ±0.003mm precision, and S136 anti-rust steel—turning "micro-manufacturing headaches" into "reliable, high-quality earbud case output."
Core Customization Capabilities for Client-Drawn Earbud Cases
We tailor every mold to your earbud case's unique micro-structures and design needs, with a focus on details that define user experience:
| Customization Dimension |
Key Options |
Heya Advantage |
| Client Drawing Support |
2D (DXF/PDF) & 3D (CAD/STEP/IGES) files; adapts to micro-features (charging contacts, vent holes, magnetic slots) and styles (slim, waterproof, ergonomic curves) |
Free pre-production DFM (Design for Manufacturability) analysis—e.g., optimizing vent hole draft angles to avoid resin clogging; 100% drawing alignment guaranteed |
| S136 Anti-Rust Steel Benefits |
50-52 HRC hardness, 1,000-hour salt spray test pass (anti-rust), compatible with earbud case resins (PC, ABS, TPU for waterproof models) |
Resists corrosion from cleaning solvents—mold life extends to 180k+ cycles (3x longer than standard steel); no rust stains on clear/light-colored cases |
| Ultra-Precision Tuning |
±0.003mm tolerance for micro-features (charging contacts, lid hinges); Ra ≤0.008μm surface finish (for smooth case exteriors) |
Ensures every case's micro-parts align perfectly—charging contacts connect reliably, lids snap shut with consistent force (no "loose lids" complaints) |
| Wireless Headphone-Specific Adaptations |
Waterproof seal grooves (for IPX4/IPX7 cases), battery compartment rib reinforcement, logo embossing/debossing (for branding) |
Solves TWS-specific needs—e.g., waterproof grooves prevent water seepage, rib reinforcement avoids case cracking when inserting earbuds |
Technical Specs: Built for Micro-Scale Earbud Case Production
Our molds are engineered to master the precision required for tiny earbud cases, with specs that directly impact your product quality and production costs:
| Specification |
Heya Standard for Earbud Case Molds |
Impact on Your Production |
| Dimensional Precision |
±0.003mm (micro-features: contacts, vents, hinges); ±0.005mm (case outer dimensions) |
Eliminates micro-fit defects—scrap rates drop to ≤3% vs. industry average 15%+ |
| Mold Material (S136 Steel) |
180k+ production cycles; 1,000-hour salt spray anti-rust certification |
Reduces mold replacement costs by 60%/year; no downtime for rust removal or mold repairs |
| Resin Compatibility |
Optimized for PC (hard cases), ABS (branded cases), TPU (flexible waterproof cases) |
Works with all mainstream earbud case materials—no need to invest in multiple molds for different product lines |
| Lead Time |
12-15 days (from drawing approval to mold delivery) |
Faster than industry average (20+ days) to help you launch new TWS models ahead of competitors (e.g., holiday shopping seasons) |
Quality Assurance: ISO 9001 Certified
Our entire earbud case mold production process—from drawing review, S136 steel selection, and CNC micro-machining to final precision inspection—strictly complies with ISO 9001:2015 standards. This ensures:
- Consistent Micro-Precision: Every mold undergoes Zeiss CMM testing (±0.0005mm accuracy) to verify ±0.003mm tolerance for micro-features;
- Traceable Quality: Full records (S136 steel mill certificates, anti-rust test reports, machining logs) are provided for your supply chain audits;
- Reliable Problem-Solving: Clear protocols for addressing minor deviations (e.g., subtle contact alignment tweaks) to avoid delaying your production.
Who Benefits from Our Client-Drawn Earbud Case Molds
- TWS OEM/ODM Manufacturers: For high-volume production of standard earbud cases (e.g., 100k+ units/month), where S136 durability and ±0.003mm precision cut long-term costs;
- Consumer Electronics Brands: For launching custom earbud lines (e.g., noise-canceling TWS, sports waterproof models), where 3D drawing support ensures unique designs (e.g., ergonomic curves) are replicated perfectly;
- Accessory Suppliers: For niche earbud cases (e.g., luxury leather-wrapped, eco-friendly resin), where micro-precision ensures compatibility with original headphones.
Call to Action
Need a custom mold for your wireless earbud case design? Upload your 2D/3D drawing (CAD/STEP)—Heya's engineers (with 3+ years of micro-scale consumer electronics mold experience) will provide a free DFM report (including micro-feature optimization tips) and detailed quote within 24 hours.
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