Hong Kong PETG Thick-Bottom Cosmetic Bottle Blow Molding Case Study
| Customer Region: Hong Kong | Industry: Cosmetics, skin care, and cleaning products | Resin: PETG |
| Machine Model: JHD-370D | Cavities: 2 | Stations: 2 |
| Drive System: Hybrid with servo system | Productivity: 480 pcs/hr | Product Type: PETG thick-bottom cosmetic bottle |
Customer Background and Production Need
The customer is a Hong Kong-based cosmetic and cleaning product container group founded in 1993, with more than 2,500 employees and a production site of over 90,000 square meters. The company needed PETG containers with a thick-bottom, glass-like appearance for cosmetic packaging. Since 2002, the customer has worked with Jonh Huah on stable PETG material processing in extrusion blow molding.
Technical Challenge
PETG thick-bottom cosmetic bottles are difficult because clarity, bottom thickness, temperature control, and parison stability all affect appearance. PETG has processing requirements that can create haze, flow marks, or bottom-layer issues if temperature and wall distribution are not controlled. The customer needed a lower tooling-investment process than injection molding while keeping a high-quality visual result.
Jonh Huah's Solution
Jonh Huah supplied the JHD-370D hybrid machine with servo control and adjustable operating settings for PETG production. The setup uses blow molding tooling instead of a more expensive injection mold set, and the parison controller helps adjust thickness distribution for the thick bottom and bottle body.
Project Result
After production started, the customer produced clear PETG thick-bottom bottles at a public output of 480 pcs/hr. The adjustable interface and wall thickness control allowed technicians to tune the process for PETG's temperature-sensitive behavior. The setup later became part of the customer group's standard production configuration for cosmetic packaging orders.
Why This Solution Worked
The project depended on material handling, temperature control, wall thickness distribution, and mold cooling. Jonh Huah configured the machine around PETG's process window instead of treating it like a standard PE bottle. You can review more customer applications or discuss PETG bottle production with the engineering team.