Designed for plastic part manufacturers (automotive, electronics, consumer goods) needing fully customized mold components, our cavity cores are 100% aligned with your 2D/3D drawings (CAD, STEP, IGES formats) to fit seamlessly into your existing injection mold systems. We prioritize precision and resin compatibility to eliminate production delays—critical for high-volume plastic parts like automotive sensor housings, electronic device casings, and consumer product enclosures.
Plastic part manufacturers face 3 core pain points with off-the-shelf or poorly customized cavity cores:
- Mismatch with client drawings leads to mold assembly issues and costly rework;
- Insufficient tolerance causes inconsistent plastic part dimensions (e.g., loose fits in device casings);
- Poor resin compatibility results in sticking, warping, or shortened mold life.
Heya solves these by engineering cavity cores exclusively for your drawings—combining 18+ years of precision machining experience with strict quality controls to meet even the most demanding plastic molding needs.
We tailor every detail to your drawings and production requirements, with flexibility to adapt to unique plastic part designs:
Our cavity cores meet the strict standards of high-volume injection molding, with specs that directly boost your production efficiency:
- ISO 9001 Certified: Every cavity core undergoes rigorous inspection to meet international quality standards—critical for clients in automotive (IATF 16949-aligned) and electronics industries.
- Material Traceability: Full documentation (mill certificates, heat-treatment records) provided for every steel batch, ensuring transparency for your supply chain audits.
- Pre-Production Testing: We run 50–100 test injections with your target resin (PC/ABS) to verify cavity core performance—catching issues like resin sticking or uneven filling before mass production.


- Automotive Plastic Part Manufacturers: For components like sensor housings, interior trims, and under-hood plastic parts (PC/ABS compatibility ideal for heat/humidity resistance).
- Electronic Device Makers: For precision casings (e.g., smartphone chargers, IoT device enclosures) where ±0.005mm tolerance ensures component alignment.
- Consumer Goods Injection Molders: For high-volume products (e.g., toy parts, home appliance enclosures) needing durable, cost-effective cavity cores tailored to unique drawings.
Need custom cavity cores matching your 2D/3D drawings? Upload your CAD/STEP file—Heya’s engineers will provide a free DFM (Design for Manufacturability) report and detailed quote within 24 hours.
Bonus: Download our [Custom Cavity Core Spec Sheet] for tolerance charts, material comparisons, and PC/ABS molding best practices.