Technology / product information

We provide injection molding services for bobbins used in electrical and electronic devices. Using PBT (Polybutylene Terephthalate), we manufacture components with excellent heat resistance, superior electrical insulation, and dimensional stability. These properties make PBT bobbins ideal for motors and transformers in household electrical appliances. Our end-to-end production system covers every stage from prototyping to mass production.

Specifications & Capabilities
- Supported Material: PBT (Polybutylene Terephthalate)
- Injection Molding Machine Capacity: 15–150 tons
- Precision: ±10 µm
- Electrical Properties: Excellent electrical insulation, low moisture absorption, high heat resistance
- Production capability: From prototyping to mass production.

Key Features & Differentiators
- In-house end-to-end process from mold design to injection molding
- Enhanced product safety by leveraging PBT’s insulation and heat resistance properties
- Strict process control to minimize warpage and deformation
- Quality management system compliant with ISO 9001 and IATF 16949

Why Customers Choose HAKKAI
- Extensive manufacturing experience in parts for electrical equipment and household appliances
- Proven ability to deliver durable, precise, and reliable components with on-time delivery
- Local production in Thailand (BOI certified), ensuring cost reduction and flexible lead times
- Japanese engineers providing design support and quality assurance (QA) to meet international standards

📌 If you are interested in our injection molding services, please download the PDF brochure or contact us for more information.

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