Dongguan Dong Zheng Blow Molding Co., Ltd. is a professional manufacturer specializing in blow molding, injection molding, mold development and production, as well as processing. We always adhere to the business philosophy of survival through quality and development through integrity, providing excellent service to both new and old customers. Our main products include various containers, sports water bottles, oil cans, bubble bottles, toys such as Christmas balls, beach balls, golf balls, plush toys, and more. Customers can place custom orders or provide materials for processing. The raw materials used in our product processing and production include PE, PP, ABS, 475, PVC, PET, PC, and PETG. Our products are of high quality, precision, and reasonable pricing, earning the trust of new and old customers. We value honesty, credibility, and continuous improvement.
Introduction to the Selection of Blow Molding Dies
Don't solely focus on product design and neglect the plastic mold manufacturing.
Some users, during product development or the trial production of new products, often only focus on the research and development of the product in the initial stage, neglecting communication with the plastic mold manufacturing unit. There are two benefits to contacting the mold manufacturer as soon as the preliminary design of the product is determined:
1. We guarantee that the products are designed with excellent forming techniques, ensuring the final design is not altered due to difficulties in part processing.
2. Molding manufacturers can prepare the design in advance to prevent hasty considerations that may affect the project timeline.
3. To produce high-quality plastic molds, close collaboration between both suppliers and customers is essential to reduce costs and shorten the production cycle.
Don't just focus on price; consider quality, lead time, and service from multiple angles.
1. There are many types of molds, which can be roughly divided into ten categories. Different mold forming types are chosen based on various requirements such as part material, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, and cost-effectiveness.
2. High-precision molds require processing on high-precision CNC machines, with strict requirements for material and forming processes. CAD/CAE/CAM mold technology is also necessary for design and analysis.
3. Some parts require specialized molding requirements, necessitating advanced techniques such as hot runner molds, gas-assisted molding, and nitrogen cylinders.
4. Manufacturers should have CNC machines, EDM, wire-cutting machines, and CNC profiling milling equipment, high-precision grinding machines, high-precision three-coordinate measuring instruments, computer design and related software, etc.
5. For general large-scale stamping molds (such as automotive cover mold), consider if the machine tool has a blanking device, as well as edge lubricant, multi-position progressive operations, etc. Besides the stamping tonnage, also take into account the stroke, feeding device, machine tool, and mold protection devices.
6. The manufacturing methods and processes for the aforementioned molds are not possessed or mastered by every company. When selecting a collaborating manufacturer, it is crucial to understand their processing capabilities, not just the hardware equipment, but also their management level, processing experience, and technical strength.
7. There can be significant differences in quotes for the same mold from different manufacturers. You should not pay more than the mold's value nor less than its cost. Mold manufacturers, like you, need to achieve a reasonable profit in their business. Ordering a mold with a much lower quote could be the start of trouble. Users must assess based on their own requirements.
Avoid multiple collaborations and strive for a one-stop service for plastic mold making and product processing.
1. Having a qualified mold (sample qualified) doesn't necessarily guarantee the production of batch-qualified products. This primarily relates to the selection of machine tools for part processing, forming technology (forming temperature, forming time, etc.), and the operator's technical qualifications.
2. With a good mold, you also need excellent forming processing. It's essential to have a seamless collaboration, avoiding multiple parties working independently. If the conditions are not met, choose one party to be responsible, and make sure to clearly state this in the contract.
