Dongguan Dong Zheng Blowing Products 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 all new and old customers. Main products include various containers, sports water bottles, oil cans, bubble bottles, toy products such as Christmas balls, beach balls, golf balls, plush toys, etc. Customers can place orders for custom designs or material processing. The raw materials for product processing and production include PE, PP, ABS, 475, PVC, PET, PC, and PETG. Our company's products are of high quality, precision, and reasonable pricing, earning the trust of new and old customers. We value honesty, trustworthiness, and continuous improvement.

Introduction to the Selection of Blowing 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 product research and development initially, neglecting communication with plastic mold manufacturers. There are two benefits to contacting mold manufacturers early after the preliminary design of the product is determined:
1. We guarantee that the products we design have excellent forming processes, and the design will not be altered due to the difficulty in processing parts.
2. Mold manufacturers can prepare the design in advance to prevent hasty consideration that could affect the project timeline.
3. To produce high-quality plastic molds, close collaboration between both suppliers and buyers 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, generally divided into ten categories. Selection of mold forming is based on different requirements such as material of parts, physical and chemical properties, mechanical strength, dimensional accuracy, surface finish, service life, and economy.
2. High-precision molds require machining on high-precision CNC machines, with strict requirements for mold material and forming processes. CAD/CAE/CAM mold technology must also be used for design and analysis.
3. Some parts require special molding requirements, necessitating advanced techniques such as hot runner molds, gas-assisted molding, and nitrogen cylinders.
4. Manufacturers should be equipped with CNC machines, EDM, wire-cutting machines, and CNC profile milling equipment, high-precision grinding machines, high-precision three-coordinate measuring instruments, computer design and related software.
5. For general large-scale stamping molds (such as automotive cover molds), consider whether the machine tool has a blanking edge device, even edge lubricants, and multi-station progressive operations. In addition to the stamping tonnage, also consider 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 essential to understand its processing capabilities, not only by examining the hardware equipment but also by considering management levels, processing experience, and technical strength.
7. There can be significant differences in quotes for the same mold from different manufacturers. You shouldn't pay more than the mold's value, nor should you pay 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 can be the start of trouble. Users must weigh 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) does not necessarily guarantee the production of bulk qualified products. This primarily relates to the selection of machine tools for part processing, forming technology (forming temperature, forming time, etc.), and the technical qualifications of the operator.
2. With a good mold, a good forming process is also essential; it's about a seamless collaboration. Try to avoid multiple collaborations as much as possible. If the conditions are not met, select one party to be responsible, and be sure to clarify this in the contract.