Injection Molding Process
Donpon’s injection molding workshop is equipped with over 250 single-shot and multi-shot machines ranging from 50 to 300 tons. We offer high-precision molding capabilities for thin-wall, high-gloss, and mirror-finish parts, as well as multi-cavity and multi-material combinations. Our operations support a variety of complex processes, including dual- and tri-color molding, soft-hard overmolding, and metal-plastic insert molding.
The production line integrates six-axis robots, five-axis manipulators, and all-in-one dehumidifying dryers to enhance automation and process stability. Manufacturing operations are fully managed through ERP and MES systems, enabling real-time data collection, process tracking, and performance analysis for improved quality control and operational transparency.
Our experienced technical team includes several core engineers with over 30 years of expertise in injection molding. Their deep industry knowledge ensures stable production processes and supports reliable, efficient, and high-volume manufacturing for our global customers.
Single-Shot
Two-Shot
Vertical
Insert
Surface Finishing Technology
Donpon has built a comprehensive and automated surface finishing system, delivering high-quality, consistent, and efficient coating and printing solutions.
Our production line features a fully automated VOC-compliant 3-coat 3-bake painting system, operating in a controlled cleanroom environment with constant temperature and humidity and ISO Class 10,000 air cleanliness. The system supports both solvent-based and water-based coatings, and is integrated with an EMS digital control platform to significantly reduce labor costs and enhance production efficiency and coating consistency.
We maintain long-term partnerships with globally renowned coating brands such as PPG (USA), AkzoNobel (Netherlands), Musashi (Japan), Beckers (Sweden), and Songyi (China). With extensive application experience, we provide coating solutions that meet diverse industry requirements for appearance, adhesion, durability, and environmental safety.
In printing, we have introduced automated rotary pad printing machines and dual-platform screen printing systems. Both painting and printing lines are equipped with UV, infrared, and ultraviolet curing ovens, ensuring stable curing performance and consistent visual quality across all products.
Painting Line
Screen Printing
Ink Injection
Multi-color Blending Printing
CNC Engraving
PU Coating
UV Coating
Anti-Fingerprint UV Coating
Spatter Painting
Automotive Electronics Assembly Process
Donpon provides comprehensive assembly solutions for automotive electronic products, covering the entire process from component preparation and module assembly to electrical testing and final packaging. Our assembly lines combine semi-automated and fully automated workstations, equipped with screw fastening systems, vision alignment, precision press-fit units, and automatic dispensing equipment. This ensures high consistency and repeatability in critical operations, meeting the demanding reliability standards of automotive-grade products.
To ensure product quality and functional reliability, the assembly process integrates multiple in-line inspections and testing stations, including barcode traceability, continuity and dielectric withstand tests, functional simulations, and error-proofing (Poka-Yoke) systems. These measures significantly improve electrical performance stability and reduce defect rates.
We also offer flexible process configurations tailored to customer requirements, supporting the assembly of various automotive modules such as control units, displays, connectors, and sensors. Custom tooling and modular workstations can be integrated to optimize production efficiency and adaptability.
On the digital management front, Donpon has fully implemented ERP and MES systems across its production floor. These systems enable real-time scheduling, production traceability, batch material tracking, and process data monitoring—meeting the strict documentation, traceability, and response-time standards of the automotive supply chain.
With decades of manufacturing experience and technical know-how, Donpon continues to deliver stable, efficient, and highly reliable automotive electronics assembly solutions that meet global industry demands.
High-Precision Color Inspection
Optical Autofocus
Laser Engraving
Electron Microscopy Inspection
Class 10,000 Cleanroom
Air Tightness Test
Automated Function Test
Auto Key Image Recognition
Precision Dispensing System
Precision Screwdriving System
Auto Welding Machine
Automatic Oil Coating Machine
