Automotive Key Fob Injection Molds

Tengrui Mould’s automotive key fob injection molds are engineered for large-scale key casing production. With high-precision capabilities, they integrally form key shells with buttons, indicator slots and decorative textures, ensuring great fit and stability, and fully meeting mainstream market demands.

Core Selling Points

1.High-Precision Molding

The automotive key fob injection molds adopts CNC precision carving and mirror polishing, yielding a smooth, flawless shell surface. Button position tolerance is controlled within ±0.02mm for precise, jam-free assembly, ensuring stable key performance.

2.Integrated Molding

It supports one-time two-color injection molding of soft rubber buttons and hard rubber shells, boosting production efficiency and structural stability while avoiding secondary assembly looseness.

3.Superior Durability

The cavity uses imported S136H corrosion-resistant steel, matched with P20 pre-hardened steel for the base. Nitrided to HRC52+, it boasts a service life exceeding 500,000 cycles for long-term stable production.

4.Efficient Cooling System

Optimized built-in waterways enhance cooling efficiency by 30%, shortening molding cycles, reducing costs and boosting batch production competitiveness.

5.Universal Adaptability

It supports customized production for multiple mainstream models, with quick cavity switching to meet multi-category order demands.

Material Selection

1.Mold Steel

Imported S136H cavity steel (VD/ESR refined) offers pure structure, corrosion resistance and excellent polishability. P20 pre-hardened base ensures structural stability and load capacity.

2.Finished Product Raw Materials

PC/ABS alloy for the main shell ensures impact and weather resistance; TPU soft rubber buttons deliver a comfortable, wear-resistant touch.

Processing Technology

1.Mold Processing

Rigorous mold processing: CNC milling → EDM → mirror polishing → nitriding → assembly & commissioning, with strict process control for precision.

2.Injection Molding

Two-color injection, paired with automatic gate cutting, ultrasonic cleaning and dimensional inspection, achieves automated, high-yield production.

3.Surface Treatment

Optional surface treatments (UV spraying, laser LOGO, vacuum plating) enhance texture and meet personalized needs.

Application Scenarios

- OEM original key supporting production

- Auto parts cities & 4S stores replacement parts

- Automotive modification shop customization

- Cross-border e-commerce key parts supply

Quality Assurance

Each mold undergoes 72-hour continuous testing before delivery. Finished products pass 10,000-button life, temperature cycle and salt spray tests. As a professional supplier, we offer 12-month warranty with free non-human damage maintenance.

About Tengrui Mould

Tengrui Mould is a professional factory for R&D and production of automotive key fob injection molds. With advanced equipment and strict QC, we provide global clients with quality products and customized solutions. Rooted in China, we strive to be a trusted global automotive mold partner.