Automotive TPE Dust Cover Case Study: JS-550E Specialized Blow Molder
| Customer Nation: Korea | Industry: Automotive Parts | Resin: TPE / TPV |
| Machine Model: JS-550E (Specialized) | Cavities: 1 | Number of station: 1 |
| Actuator Type: Hybrid (with Servo system) | Productivity: 211 pcs/hr | Product type: Dust Cover / Bellows |
Customer Background
The customer is a multinational corporation headquartered in Korea, supplying critical bellows and dust covers to global automotive brands in Japan, India, and the U.S. In the automotive industry, safety and durability are paramount, requiring parts to meet extreme endurance standards. The customer came to Jonh Huah through a high-level industry referral, seeking a blow molding solution that could handle the technical complexities of Thermoplastic Elastomer (TPE) materials while maintaining strict quality control.
Technical Challenges
Production of automotive dust covers using TPE/TPV material presents significant hurdles. First, TPE has a very high melt index, making it extremely difficult to control the precision of the parison and wall thickness over long products. Second, the customer imposed strict CPK (Process Capability Index) requirements on product thickness across every area of the part body to ensure uniform flexibility and strength. Finally, the project demanded a high level of automation, including top and bottom auto-deflashing, to ensure clean edges and reduce manual post-processing.
Our Solution
To meet these high-quality demands, Jonh Huah’s R&D team developed a customized version of the JS-550E Specialized Blow Molding Machine. We integrated an advanced accumulator head design with a high-speed, high-precision injection system to ensure rapid parison formation before cooling. The system was further enhanced with an integrated drying and gravimetric dosing system tailored for TPE materials. This setup ensures absolute control over the parison wall thickness, achieving the strict CPK targets required by global automotive OEMs. We also incorporated a fully automated deflashing system within the mold cycle.
Results & Testimonials
The specialized JS-550E solution was a resounding success, successfully meeting all automotive-grade specifications. The customer was so satisfied with the consistency and precision of the parts that they expanded the use of Jonh Huah machines across their global manufacturing hubs. Today, these machines are actively producing high-end automotive parts for markets in North America (U.S., Canada, Mexico) and India. The customer noted: "Jonh Huah transformed our technical requirements into a reliable reality, giving us the precision we needed to compete at the highest level of the global supply chain."
Why Choose Jonh Huah?
Jonh Huah is a leading blow molding manufacturer known for its engineering excellence in high-performance materials like TPE and TPV. We specialize in servo-hybrid technology that provides the speed and torque required for accumulator-type molding while significantly lowering production energy costs. If your project involves complex geometries or high-performance elastomers for the automotive or industrial sectors, Jonh Huah is the strategic partner you can trust. Explore our global automotive case studies or contact us to start your customized project.